diff options
| author |   Jeff Mahoney <jeffm@suse.com> | 2016-06-22 18:54:23 -0400 |
|---|---|---|
| committer | Jeff Mahoney <jeffm@suse.com> | 2016-06-24 17:56:53 -0400 |
| commit | b7bccd6c7a2ac810eca8109adcdb3647a776e7de (patch) | |
| tree | 8b6e4619d275f9990192fe56f98aa6152d85c7e0 | |
| parent | 0cdf37ec83542ac6f29a3242d980bff250dd6b2e (diff) | |
| download | linux-btrfs-b7bccd6c7a2ac810eca8109adcdb3647a776e7de.tar.gz | |
btrfs: root->fs_info cleanup, add fs_info convenience variables
In routines where someptr->fs_info is referenced multiple times, we
introduce a convenience variable. This makes the code considerably
more readable.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
33 files changed, 2256 insertions, 1971 deletions
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c index 627b6f3edbc6..d8629f57c5c9 100644 --- a/fs/btrfs/check-integrity.c +++ b/fs/btrfs/check-integrity.c @@ -3035,18 +3035,19 @@ int btrfsic_mount(struct btrfs_root *root, int ret; struct btrfsic_state *state; struct list_head *dev_head = &fs_devices->devices; + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_device *device; - if (root->fs_info->nodesize & ((u64)PAGE_SIZE - 1)) { + if (fs_info->nodesize & ((u64)PAGE_SIZE - 1)) { printk(KERN_INFO "btrfsic: cannot handle nodesize %d not being a multiple of PAGE_SIZE %ld!\n", - root->fs_info->nodesize, PAGE_SIZE); + fs_info->nodesize, PAGE_SIZE); return -1; } - if (root->fs_info->sectorsize & ((u64)PAGE_SIZE - 1)) { + if (fs_info->sectorsize & ((u64)PAGE_SIZE - 1)) { printk(KERN_INFO "btrfsic: cannot handle sectorsize %d not being a multiple of PAGE_SIZE %ld!\n", - root->fs_info->sectorsize, PAGE_SIZE); + fs_info->sectorsize, PAGE_SIZE); return -1; } state = kzalloc(sizeof(*state), GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT); @@ -3068,8 +3069,8 @@ int btrfsic_mount(struct btrfs_root *root, state->print_mask = print_mask; state->include_extent_data = including_extent_data; state->csum_size = 0; - state->metablock_size = root->fs_info->nodesize; - state->datablock_size = root->fs_info->sectorsize; + state->metablock_size = fs_info->nodesize; + state->datablock_size = fs_info->sectorsize; INIT_LIST_HEAD(&state->all_blocks_list); btrfsic_block_hashtable_init(&state->block_hashtable); btrfsic_block_link_hashtable_init(&state->block_link_hashtable); diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index acb0fa83cc99..aaa9486b1c47 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -88,10 +88,11 @@ static int btrfs_decompress_biovec(int type, struct page **pages_in, static inline int compressed_bio_size(struct btrfs_root *root, unsigned long disk_size) { - u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); + struct btrfs_fs_info *fs_info = root->fs_info; + u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); return sizeof(struct compressed_bio) + - (DIV_ROUND_UP(disk_size, root->fs_info->sectorsize)) * csum_size; + (DIV_ROUND_UP(disk_size, fs_info->sectorsize)) * csum_size; } static struct bio *compressed_bio_alloc(struct block_device *bdev, @@ -329,6 +330,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, struct page **compressed_pages, unsigned long nr_pages) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct bio *bio = NULL; struct btrfs_root *root = BTRFS_I(inode)->root; struct compressed_bio *cb; @@ -356,7 +358,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, cb->orig_bio = NULL; cb->nr_pages = nr_pages; - bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev; + bdev = fs_info->fs_devices->latest_bdev; bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS); if (!bio) { @@ -391,8 +393,8 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, * freed before we're done setting it up */ atomic_inc(&cb->pending_bios); - ret = btrfs_bio_wq_end_io(root->fs_info, bio, - BTRFS_WQ_ENDIO_DATA); + ret = btrfs_bio_wq_end_io(fs_info, bio, + BTRFS_WQ_ENDIO_DATA); BUG_ON(ret); /* -ENOMEM */ if (!skip_sum) { @@ -413,7 +415,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, bio_add_page(bio, page, PAGE_SIZE, 0); } if (bytes_left < PAGE_SIZE) { - btrfs_info(BTRFS_I(inode)->root->fs_info, + btrfs_info(fs_info, "bytes left %lu compress len %lu nr %lu", bytes_left, cb->compressed_len, cb->nr_pages); } @@ -423,7 +425,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start, } bio_get(bio); - ret = btrfs_bio_wq_end_io(root->fs_info, bio, BTRFS_WQ_ENDIO_DATA); + ret = btrfs_bio_wq_end_io(fs_info, bio, BTRFS_WQ_ENDIO_DATA); BUG_ON(ret); /* -ENOMEM */ if (!skip_sum) { @@ -563,6 +565,7 @@ next: int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, int mirror_num, unsigned long bio_flags) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct extent_io_tree *tree; struct extent_map_tree *em_tree; struct compressed_bio *cb; @@ -623,7 +626,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, if (!cb->compressed_pages) goto fail1; - bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev; + bdev = fs_info->fs_devices->latest_bdev; for (pg_index = 0; pg_index < nr_pages; pg_index++) { cb->compressed_pages[pg_index] = alloc_page(GFP_NOFS | @@ -667,8 +670,8 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, PAGE_SIZE) { bio_get(comp_bio); - ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, - BTRFS_WQ_ENDIO_DATA); + ret = btrfs_bio_wq_end_io(fs_info, comp_bio, + BTRFS_WQ_ENDIO_DATA); BUG_ON(ret); /* -ENOMEM */ /* @@ -685,7 +688,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, BUG_ON(ret); /* -ENOMEM */ } sums += DIV_ROUND_UP(comp_bio->bi_iter.bi_size, - root->fs_info->sectorsize); + fs_info->sectorsize); ret = btrfs_map_bio(root, READ, comp_bio, mirror_num, 0); @@ -708,8 +711,7 @@ int btrfs_submit_compressed_read(struct inode *inode, struct bio *bio, } bio_get(comp_bio); - ret = btrfs_bio_wq_end_io(root->fs_info, comp_bio, - BTRFS_WQ_ENDIO_DATA); + ret = btrfs_bio_wq_end_io(fs_info, comp_bio, BTRFS_WQ_ENDIO_DATA); BUG_ON(ret); /* -ENOMEM */ if (!(BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM)) { diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 086b2e99f95c..2d51729f8a6f 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -214,21 +214,23 @@ static struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root) */ static void add_root_to_dirty_list(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; + if (test_bit(BTRFS_ROOT_DIRTY, &root->state) || !test_bit(BTRFS_ROOT_TRACK_DIRTY, &root->state)) return; - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); if (!test_and_set_bit(BTRFS_ROOT_DIRTY, &root->state)) { /* Want the extent tree to be the last on the list */ if (root->objectid == BTRFS_EXTENT_TREE_OBJECTID) list_move_tail(&root->dirty_list, - &root->fs_info->dirty_cowonly_roots); + &fs_info->dirty_cowonly_roots); else list_move(&root->dirty_list, - &root->fs_info->dirty_cowonly_roots); + &fs_info->dirty_cowonly_roots); } - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); } /* @@ -241,13 +243,14 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans, struct extent_buffer *buf, struct extent_buffer **cow_ret, u64 new_root_objectid) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *cow; int ret = 0; int level; struct btrfs_disk_key disk_key; WARN_ON(test_bit(BTRFS_ROOT_REF_COWS, &root->state) && - trans->transid != root->fs_info->running_transaction->transid); + trans->transid != fs_info->running_transaction->transid); WARN_ON(test_bit(BTRFS_ROOT_REF_COWS, &root->state) && trans->transid != root->last_trans); @@ -273,7 +276,7 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans, else btrfs_set_header_owner(cow, new_root_objectid); - write_extent_buffer(cow, root->fs_info->fsid, btrfs_header_fsid(), + write_extent_buffer(cow, fs_info->fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE); WARN_ON(btrfs_header_generation(buf) > trans->transid); @@ -980,6 +983,7 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans, struct extent_buffer *cow, int *last_ref) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 refs; u64 owner; u64 flags; @@ -1011,7 +1015,7 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans, return ret; if (refs == 0) { ret = -EROFS; - btrfs_handle_fs_error(root->fs_info, ret, NULL); + btrfs_handle_fs_error(fs_info, ret, NULL); return ret; } } else { @@ -1072,7 +1076,7 @@ static noinline int update_ref_for_cow(struct btrfs_trans_handle *trans, ret = btrfs_dec_ref(trans, root, buf, 1); BUG_ON(ret); /* -ENOMEM */ } - clean_tree_block(trans, root->fs_info, buf); + clean_tree_block(trans, fs_info, buf); *last_ref = 1; } return 0; @@ -1097,6 +1101,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, struct extent_buffer **cow_ret, u64 search_start, u64 empty_size) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_disk_key disk_key; struct extent_buffer *cow; int level, ret; @@ -1110,7 +1115,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, btrfs_assert_tree_locked(buf); WARN_ON(test_bit(BTRFS_ROOT_REF_COWS, &root->state) && - trans->transid != root->fs_info->running_transaction->transid); + trans->transid != fs_info->running_transaction->transid); WARN_ON(test_bit(BTRFS_ROOT_REF_COWS, &root->state) && trans->transid != root->last_trans); @@ -1148,7 +1153,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, else btrfs_set_header_owner(cow, root->root_key.objectid); - write_extent_buffer(cow, root->fs_info->fsid, btrfs_header_fsid(), + write_extent_buffer(cow, fs_info->fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE); ret = update_ref_for_cow(trans, root, buf, cow, &last_ref); @@ -1188,7 +1193,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, parent_start = 0; WARN_ON(trans->transid != btrfs_header_generation(parent)); - tree_mod_log_insert_key(root->fs_info, parent, parent_slot, + tree_mod_log_insert_key(fs_info, parent, parent_slot, MOD_LOG_KEY_REPLACE, GFP_NOFS); btrfs_set_node_blockptr(parent, parent_slot, cow->start); @@ -1196,7 +1201,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans, trans->transid); btrfs_mark_buffer_dirty(parent); if (last_ref) { - ret = tree_mod_log_free_eb(root->fs_info, buf); + ret = tree_mod_log_free_eb(fs_info, buf); if (ret) { btrfs_abort_transaction(trans, ret); return ret; @@ -1417,6 +1422,7 @@ tree_mod_log_rewind(struct btrfs_fs_info *fs_info, struct btrfs_path *path, static inline struct extent_buffer * get_old_root(struct btrfs_root *root, u64 time_seq) { + struct btrfs_fs_info *fs_info = root->fs_info; struct tree_mod_elem *tm; struct extent_buffer *eb = NULL; struct extent_buffer *eb_root; @@ -1426,7 +1432,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq) u64 logical; eb_root = btrfs_read_lock_root_node(root); - tm = __tree_mod_log_oldest_root(root->fs_info, eb_root, time_seq); + tm = __tree_mod_log_oldest_root(fs_info, eb_root, time_seq); if (!tm) return eb_root; @@ -1438,7 +1444,7 @@ get_old_root(struct btrfs_root *root, u64 time_seq) logical = eb_root->start; } - tm = tree_mod_log_search(root->fs_info, logical, time_seq); + tm = tree_mod_log_search(fs_info, logical, time_seq); if (old_root && tm && tm->op != MOD_LOG_KEY_REMOVE_WHILE_FREEING) { btrfs_tree_read_unlock(eb_root); free_extent_buffer(eb_root); @@ -1446,8 +1452,9 @@ get_old_root(struct btrfs_root *root, u64 time_seq) if (WARN_ON(IS_ERR(old) || !extent_buffer_uptodate(old))) { if (!IS_ERR(old)) free_extent_buffer(old); - btrfs_warn(root->fs_info, - "failed to read tree block %llu from get_old_root", logical); + btrfs_warn(fs_info, + "failed to read tree block %llu from get_old_root", + logical); } else { eb = btrfs_clone_extent_buffer(old); free_extent_buffer(old); @@ -1455,8 +1462,8 @@ get_old_root(struct btrfs_root *root, u64 time_seq) } else if (old_root) { btrfs_tree_read_unlock(eb_root); free_extent_buffer(eb_root); - eb = alloc_dummy_extent_buffer(root->fs_info, logical, - root->fs_info->nodesize); + eb = alloc_dummy_extent_buffer(fs_info, logical, + fs_info->nodesize); } else { btrfs_set_lock_blocking_rw(eb_root, BTRFS_READ_LOCK); eb = btrfs_clone_extent_buffer(eb_root); @@ -1476,10 +1483,10 @@ get_old_root(struct btrfs_root *root, u64 time_seq) btrfs_set_header_generation(eb, old_generation); } if (tm) - __tree_mod_log_rewind(root->fs_info, eb, time_seq, tm); + __tree_mod_log_rewind(fs_info, eb, time_seq, tm); else WARN_ON(btrfs_header_level(eb) != 0); - WARN_ON(btrfs_header_nritems(eb) > BTRFS_NODEPTRS_PER_BLOCK(root->fs_info)); + WARN_ON(btrfs_header_nritems(eb) > BTRFS_NODEPTRS_PER_BLOCK(fs_info)); return eb; } @@ -1541,17 +1548,18 @@ noinline int btrfs_cow_block(struct btrfs_trans_handle *trans, struct extent_buffer *parent, int parent_slot, struct extent_buffer **cow_ret) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 search_start; int ret; - if (trans->transaction != root->fs_info->running_transaction) + if (trans->transaction != fs_info->running_transaction) WARN(1, KERN_CRIT "trans %llu running %llu\n", trans->transid, - root->fs_info->running_transaction->transid); + fs_info->running_transaction->transid); - if (trans->transid != root->fs_info->generation) + if (trans->transid != fs_info->generation) WARN(1, KERN_CRIT "trans %llu running %llu\n", - trans->transid, root->fs_info->generation); + trans->transid, fs_info->generation); if (!should_cow_block(trans, root, buf)) { trans->dirty = true; @@ -1628,6 +1636,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans, int start_slot, u64 *last_ret, struct btrfs_key *progress) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *cur; u64 blocknr; u64 gen; @@ -1646,11 +1655,11 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans, parent_level = btrfs_header_level(parent); - WARN_ON(trans->transaction != root->fs_info->running_transaction); - WARN_ON(trans->transid != root->fs_info->generation); + WARN_ON(trans->transaction != fs_info->running_transaction); + WARN_ON(trans->transid != fs_info->generation); parent_nritems = btrfs_header_nritems(parent); - blocksize = root->fs_info->nodesize; + blocksize = fs_info->nodesize; end_slot = parent_nritems - 1; if (parent_nritems <= 1) @@ -1684,7 +1693,7 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans, continue; } - cur = btrfs_find_tree_block(root->fs_info, blocknr); + cur = btrfs_find_tree_block(fs_info, blocknr); if (cur) uptodate = btrfs_buffer_uptodate(cur, gen, 0); else @@ -1737,9 +1746,11 @@ int btrfs_realloc_node(struct btrfs_trans_handle *trans, static inline unsigned int leaf_data_end(struct btrfs_root *root, struct extent_buffer *leaf) { + struct btrfs_fs_info *fs_info = root->fs_info; u32 nr = btrfs_header_nritems(leaf); + if (nr == 0) - return BTRFS_LEAF_DATA_SIZE(root->fs_info); + return BTRFS_LEAF_DATA_SIZE(fs_info); return btrfs_item_offset_nr(leaf, nr - 1); } @@ -1891,6 +1902,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int level) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *right = NULL; struct extent_buffer *mid; struct extent_buffer *left = NULL; @@ -1931,7 +1943,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, child = read_node_slot(root, mid, 0); if (!child) { ret = -EROFS; - btrfs_handle_fs_error(root->fs_info, ret, NULL); + btrfs_handle_fs_error(fs_info, ret, NULL); goto enospc; } @@ -1952,7 +1964,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, path->locks[level] = 0; path->nodes[level] = NULL; - clean_tree_block(trans, root->fs_info, mid); + clean_tree_block(trans, fs_info, mid); btrfs_tree_unlock(mid); /* once for the path */ free_extent_buffer(mid); @@ -1964,7 +1976,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, return 0; } if (btrfs_header_nritems(mid) > - BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) / 4) + BTRFS_NODEPTRS_PER_BLOCK(fs_info) / 4) return 0; left = read_node_slot(root, parent, pslot - 1); @@ -2006,7 +2018,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, if (wret < 0 && wret != -ENOSPC) ret = wret; if (btrfs_header_nritems(right) == 0) { - clean_tree_block(trans, root->fs_info, right); + clean_tree_block(trans, fs_info, right); btrfs_tree_unlock(right); del_ptr(root, path, level + 1, pslot + 1); root_sub_used(root, right->len); @@ -2016,7 +2028,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, } else { struct btrfs_disk_key right_key; btrfs_node_key(right, &right_key, 0); - tree_mod_log_set_node_key(root->fs_info, parent, + tree_mod_log_set_node_key(fs_info, parent, pslot + 1, 0); btrfs_set_node_key(parent, &right_key, pslot + 1); btrfs_mark_buffer_dirty(parent); @@ -2034,7 +2046,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, */ if (!left) { ret = -EROFS; - btrfs_handle_fs_error(root->fs_info, ret, NULL); + btrfs_handle_fs_error(fs_info, ret, NULL); goto enospc; } wret = balance_node_right(trans, root, mid, left); @@ -2050,7 +2062,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, BUG_ON(wret == 1); } if (btrfs_header_nritems(mid) == 0) { - clean_tree_block(trans, root->fs_info, mid); + clean_tree_block(trans, fs_info, mid); btrfs_tree_unlock(mid); del_ptr(root, path, level + 1, pslot); root_sub_used(root, mid->len); @@ -2061,8 +2073,7 @@ static noinline int balance_level(struct btrfs_trans_handle *trans, /* update the parent key to reflect our changes */ struct btrfs_disk_key mid_key; btrfs_node_key(mid, &mid_key, 0); - tree_mod_log_set_node_key(root->fs_info, parent, - pslot, 0); + tree_mod_log_set_node_key(fs_info, parent, pslot, 0); btrfs_set_node_key(parent, &mid_key, pslot); btrfs_mark_buffer_dirty(parent); } @@ -2109,6 +2120,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int level) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *right = NULL; struct extent_buffer *mid; struct extent_buffer *left = NULL; @@ -2142,7 +2154,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans, btrfs_set_lock_blocking(left); left_nr = btrfs_header_nritems(left); - if (left_nr >= BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - 1) { + if (left_nr >= BTRFS_NODEPTRS_PER_BLOCK(fs_info) - 1) { wret = 1; } else { ret = btrfs_cow_block(trans, root, left, parent, @@ -2160,8 +2172,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans, struct btrfs_disk_key disk_key; orig_slot += left_nr; btrfs_node_key(mid, &disk_key, 0); - tree_mod_log_set_node_key(root->fs_info, parent, - pslot, 0); + tree_mod_log_set_node_key(fs_info, parent, pslot, 0); btrfs_set_node_key(parent, &disk_key, pslot); btrfs_mark_buffer_dirty(parent); if (btrfs_header_nritems(left) > orig_slot) { @@ -2194,7 +2205,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans, btrfs_set_lock_blocking(right); right_nr = btrfs_header_nritems(right); - if (right_nr >= BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - 1) { + if (right_nr >= BTRFS_NODEPTRS_PER_BLOCK(fs_info) - 1) { wret = 1; } else { ret = btrfs_cow_block(trans, root, right, @@ -2213,7 +2224,7 @@ static noinline int push_nodes_for_insert(struct btrfs_trans_handle *trans, struct btrfs_disk_key disk_key; btrfs_node_key(right, &disk_key, 0); - tree_mod_log_set_node_key(root->fs_info, parent, + tree_mod_log_set_node_key(fs_info, parent, pslot + 1, 0); btrfs_set_node_key(parent, &disk_key, pslot + 1); btrfs_mark_buffer_dirty(parent); @@ -2245,6 +2256,7 @@ static void reada_for_search(struct btrfs_root *root, struct btrfs_path *path, int level, int slot, u64 objectid) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *node; struct btrfs_disk_key disk_key; u32 nritems; @@ -2266,8 +2278,8 @@ static void reada_for_search(struct btrfs_root *root, node = path->nodes[level]; search = btrfs_node_blockptr(node, slot); - blocksize = root->fs_info->nodesize; - eb = btrfs_find_tree_block(root->fs_info, search); + blocksize = fs_info->nodesize; + eb = btrfs_find_tree_block(fs_info, search); if (eb) { free_extent_buffer(eb); return; @@ -2309,6 +2321,7 @@ static void reada_for_search(struct btrfs_root *root, static noinline void reada_for_balance(struct btrfs_root *root, struct btrfs_path *path, int level) { + struct btrfs_fs_info *fs_info = root->fs_info; int slot; int nritems; struct extent_buffer *parent; @@ -2327,7 +2340,7 @@ static noinline void reada_for_balance(struct btrfs_root *root, if (slot > 0) { block1 = btrfs_node_blockptr(parent, slot - 1); gen = btrfs_node_ptr_generation(parent, slot - 1); - eb = btrfs_find_tree_block(root->fs_info, block1); + eb = btrfs_find_tree_block(fs_info, block1); /* * if we get -eagain from btrfs_buffer_uptodate, we * don't want to return eagain here. That will loop @@ -2340,7 +2353,7 @@ static noinline void reada_for_balance(struct btrfs_root *root, if (slot + 1 < nritems) { block2 = btrfs_node_blockptr(parent, slot + 1); gen = btrfs_node_ptr_generation(parent, slot + 1); - eb = btrfs_find_tree_block(root->fs_info, block2); + eb = btrfs_find_tree_block(fs_info, block2); if (eb && btrfs_buffer_uptodate(eb, gen, 1) != 0) block2 = 0; free_extent_buffer(eb); @@ -2449,6 +2462,7 @@ read_block_for_search(struct btrfs_trans_handle *trans, struct extent_buffer **eb_ret, int level, int slot, struct btrfs_key *key, u64 time_seq) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 blocknr; u64 gen; struct extent_buffer *b = *eb_ret; @@ -2458,7 +2472,7 @@ read_block_for_search(struct btrfs_trans_handle *trans, blocknr = btrfs_node_blockptr(b, slot); gen = btrfs_node_ptr_generation(b, slot); - tmp = btrfs_find_tree_block(root->fs_info, blocknr); + tmp = btrfs_find_tree_block(fs_info, blocknr); if (tmp) { /* first we do an atomic uptodate check */ if (btrfs_buffer_uptodate(tmp, gen, 1) > 0) { @@ -2534,9 +2548,11 @@ setup_nodes_for_search(struct btrfs_trans_handle *trans, struct extent_buffer *b, int level, int ins_len, int *write_lock_level) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; + if ((p->search_for_split || ins_len > 0) && btrfs_header_nritems(b) >= - BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - 3) { + BTRFS_NODEPTRS_PER_BLOCK(fs_info) - 3) { int sret; if (*write_lock_level < level + 1) { @@ -2557,7 +2573,7 @@ setup_nodes_for_search(struct btrfs_trans_handle *trans, } b = p->nodes[level]; } else if (ins_len < 0 && btrfs_header_nritems(b) < - BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) / 2) { + BTRFS_NODEPTRS_PER_BLOCK(fs_info) / 2) { int sret; if (*write_lock_level < level + 1) { @@ -2676,6 +2692,7 @@ int btrfs_search_slot(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_key *key, struct btrfs_path *p, int ins_len, int cow) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *b; int slot; int ret; @@ -2731,12 +2748,12 @@ again: * so we always do read locks */ if (p->need_commit_sem) - down_read(&root->fs_info->commit_root_sem); + down_read(&fs_info->commit_root_sem); b = root->commit_root; extent_buffer_get(b); level = btrfs_header_level(b); if (p->need_commit_sem) - up_read(&root->fs_info->commit_root_sem); + up_read(&fs_info->commit_root_sem); if (!p->skip_locking) btrfs_tree_read_lock(b); } else { @@ -2957,6 +2974,7 @@ done: int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key, struct btrfs_path *p, u64 time_seq) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *b; int slot; int ret; @@ -3031,7 +3049,7 @@ again: btrfs_clear_path_blocking(p, b, BTRFS_READ_LOCK); } - b = tree_mod_log_rewind(root->fs_info, p, b, time_seq); + b = tree_mod_log_rewind(fs_info, p, b, time_seq); if (!b) { ret = -ENOMEM; goto done; @@ -3201,6 +3219,7 @@ static int push_node_left(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *dst, struct extent_buffer *src, int empty) { + struct btrfs_fs_info *fs_info = root->fs_info; int push_items = 0; int src_nritems; int dst_nritems; @@ -3208,7 +3227,7 @@ static int push_node_left(struct btrfs_trans_handle *trans, src_nritems = btrfs_header_nritems(src); dst_nritems = btrfs_header_nritems(dst); - push_items = BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - dst_nritems; + push_items = BTRFS_NODEPTRS_PER_BLOCK(fs_info) - dst_nritems; WARN_ON(btrfs_header_generation(src) != trans->transid); WARN_ON(btrfs_header_generation(dst) != trans->transid); @@ -3233,7 +3252,7 @@ static int push_node_left(struct btrfs_trans_handle *trans, } else push_items = min(src_nritems - 8, push_items); - ret = tree_mod_log_eb_copy(root->fs_info, dst, src, dst_nritems, 0, + ret = tree_mod_log_eb_copy(fs_info, dst, src, dst_nritems, 0, push_items); if (ret) { btrfs_abort_transaction(trans, ret); @@ -3276,6 +3295,7 @@ static int balance_node_right(struct btrfs_trans_handle *trans, struct extent_buffer *dst, struct extent_buffer *src) { + struct btrfs_fs_info *fs_info = root->fs_info; int push_items = 0; int max_push; int src_nritems; @@ -3287,7 +3307,7 @@ static int balance_node_right(struct btrfs_trans_handle *trans, src_nritems = btrfs_header_nritems(src); dst_nritems = btrfs_header_nritems(dst); - push_items = BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - dst_nritems; + push_items = BTRFS_NODEPTRS_PER_BLOCK(fs_info) - dst_nritems; if (push_items <= 0) return 1; @@ -3302,13 +3322,13 @@ static int balance_node_right(struct btrfs_trans_handle *trans, if (max_push < push_items) push_items = max_push; - tree_mod_log_eb_move(root->fs_info, dst, push_items, 0, dst_nritems); + tree_mod_log_eb_move(fs_info, dst, push_items, 0, dst_nritems); memmove_extent_buffer(dst, btrfs_node_key_ptr_offset(push_items), btrfs_node_key_ptr_offset(0), (dst_nritems) * sizeof(struct btrfs_key_ptr)); - ret = tree_mod_log_eb_copy(root->fs_info, dst, src, 0, + ret = tree_mod_log_eb_copy(fs_info, dst, src, 0, src_nritems - push_items, push_items); if (ret) { btrfs_abort_transaction(trans, ret); @@ -3339,6 +3359,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int level) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 lower_gen; struct extent_buffer *lower; struct extent_buffer *c; @@ -3359,7 +3380,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans, if (IS_ERR(c)) return PTR_ERR(c); - root_add_used(root, root->fs_info->nodesize); + root_add_used(root, fs_info->nodesize); memset_extent_buffer(c, 0, 0, sizeof(struct btrfs_header)); btrfs_set_header_nritems(c, 1); @@ -3369,10 +3390,10 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans, btrfs_set_header_backref_rev(c, BTRFS_MIXED_BACKREF_REV); btrfs_set_header_owner(c, root->root_key.objectid); - write_extent_buffer(c, root->fs_info->fsid, btrfs_header_fsid(), + write_extent_buffer(c, fs_info->fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE); - write_extent_buffer(c, root->fs_info->chunk_tree_uuid, + write_extent_buffer(c, fs_info->chunk_tree_uuid, btrfs_header_chunk_tree_uuid(c), BTRFS_UUID_SIZE); btrfs_set_node_key(c, &lower_key, 0); @@ -3411,6 +3432,7 @@ static void insert_ptr(struct btrfs_trans_handle *trans, struct btrfs_disk_key *key, u64 bytenr, int slot, int level) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *lower; int nritems; int ret; @@ -3420,10 +3442,10 @@ static void insert_ptr(struct btrfs_trans_handle *trans, lower = path->nodes[level]; nritems = btrfs_header_nritems(lower); BUG_ON(slot > nritems); - BUG_ON(nritems == BTRFS_NODEPTRS_PER_BLOCK(root->fs_info)); + BUG_ON(nritems == BTRFS_NODEPTRS_PER_BLOCK(fs_info)); if (slot != nritems) { if (level) - tree_mod_log_eb_move(root->fs_info, lower, slot + 1, + tree_mod_log_eb_move(fs_info, lower, slot + 1, slot, nritems - slot); memmove_extent_buffer(lower, btrfs_node_key_ptr_offset(slot + 1), @@ -3431,7 +3453,7 @@ static void insert_ptr(struct btrfs_trans_handle *trans, (nritems - slot) * sizeof(struct btrfs_key_ptr)); } if (level) { - ret = tree_mod_log_insert_key(root->fs_info, lower, slot, + ret = tree_mod_log_insert_key(fs_info, lower, slot, MOD_LOG_KEY_ADD, GFP_NOFS); BUG_ON(ret < 0); } @@ -3456,6 +3478,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int level) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *c; struct extent_buffer *split; struct btrfs_disk_key disk_key; @@ -3483,7 +3506,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans, ret = push_nodes_for_insert(trans, root, path, level); c = path->nodes[level]; if (!ret && btrfs_header_nritems(c) < - BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - 3) + BTRFS_NODEPTRS_PER_BLOCK(fs_info) - 3) return 0; if (ret < 0) return ret; @@ -3498,7 +3521,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans, if (IS_ERR(split)) return PTR_ERR(split); - root_add_used(root, root->fs_info->nodesize); + root_add_used(root, fs_info->nodesize); memset_extent_buffer(split, 0, 0, sizeof(struct btrfs_header)); btrfs_set_header_level(split, btrfs_header_level(c)); @@ -3506,14 +3529,13 @@ static noinline int split_node(struct btrfs_trans_handle *trans, btrfs_set_header_generation(split, trans->transid); btrfs_set_header_backref_rev(split, BTRFS_MIXED_BACKREF_REV); btrfs_set_header_owner(split, root->root_key.objectid); - write_extent_buffer(split, root->fs_info->fsid, + write_extent_buffer(split, fs_info->fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE); - write_extent_buffer(split, root->fs_info->chunk_tree_uuid, + write_extent_buffer(split, fs_info->chunk_tree_uuid, btrfs_header_chunk_tree_uuid(split), BTRFS_UUID_SIZE); - ret = tree_mod_log_eb_copy(root->fs_info, split, c, 0, - mid, c_nritems - mid); + ret = tree_mod_log_eb_copy(fs_info, split, c, 0, mid, c_nritems - mid); if (ret) { btrfs_abort_transaction(trans, ret); return ret; @@ -3580,15 +3602,17 @@ static int leaf_space_used(struct extent_buffer *l, int start, int nr) noinline int btrfs_leaf_free_space(struct btrfs_root *root, struct extent_buffer *leaf) { + struct btrfs_fs_info *fs_info = root->fs_info; int nritems = btrfs_header_nritems(leaf); int ret; - ret = BTRFS_LEAF_DATA_SIZE(root->fs_info) - leaf_space_used(leaf, 0, nritems); + + ret = BTRFS_LEAF_DATA_SIZE(fs_info) - leaf_space_used(leaf, 0, nritems); if (ret < 0) { - btrfs_crit(root->fs_info, - "leaf free space ret %d, leaf data size %lu, used %d nritems %d", - ret, - (unsigned long) BTRFS_LEAF_DATA_SIZE(root->fs_info), - leaf_space_used(leaf, 0, nritems), nritems); + btrfs_crit(fs_info, + "leaf free space ret %d, leaf data size %lu, used %d nritems %d", + ret, + (unsigned long) BTRFS_LEAF_DATA_SIZE(fs_info), + leaf_space_used(leaf, 0, nritems), nritems); } return ret; } @@ -3605,6 +3629,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans, int free_space, u32 left_nritems, u32 min_slot) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *left = path->nodes[0]; struct extent_buffer *upper = path->nodes[1]; struct btrfs_map_token token; @@ -3674,11 +3699,11 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans, memmove_extent_buffer(right, btrfs_leaf_data(right) + data_end - push_space, btrfs_leaf_data(right) + data_end, - BTRFS_LEAF_DATA_SIZE(root->fs_info) - data_end); + BTRFS_LEAF_DATA_SIZE(fs_info) - data_end); /* copy from the left data area */ copy_extent_buffer(right, left, btrfs_leaf_data(right) + - BTRFS_LEAF_DATA_SIZE(root->fs_info) - push_space, + BTRFS_LEAF_DATA_SIZE(fs_info) - push_space, btrfs_leaf_data(left) + leaf_data_end(root, left), push_space); @@ -3694,7 +3719,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans, /* update the item pointers */ right_nritems += push_items; btrfs_set_header_nritems(right, right_nritems); - push_space = BTRFS_LEAF_DATA_SIZE(root->fs_info); + push_space = BTRFS_LEAF_DATA_SIZE(fs_info); for (i = 0; i < right_nritems; i++) { item = btrfs_item_nr(i); push_space -= btrfs_token_item_size(right, item, &token); @@ -3707,7 +3732,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans, if (left_nritems) btrfs_mark_buffer_dirty(left); else - clean_tree_block(trans, root->fs_info, left); + clean_tree_block(trans, fs_info, left); btrfs_mark_buffer_dirty(right); @@ -3719,7 +3744,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans, if (path->slots[0] >= left_nritems) { path->slots[0] -= left_nritems; if (btrfs_header_nritems(path->nodes[0]) == 0) - clean_tree_block(trans, root->fs_info, path->nodes[0]); + clean_tree_block(trans, fs_info, path->nodes[0]); btrfs_tree_unlock(path->nodes[0]); free_extent_buffer(path->nodes[0]); path->nodes[0] = right; @@ -3830,6 +3855,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans, int free_space, u32 right_nritems, u32 max_slot) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_disk_key disk_key; struct extent_buffer *right = path->nodes[0]; int i; @@ -3886,7 +3912,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans, btrfs_item_nr_offset(0), push_items * sizeof(struct btrfs_item)); - push_space = BTRFS_LEAF_DATA_SIZE(root->fs_info) - + push_space = BTRFS_LEAF_DATA_SIZE(fs_info) - btrfs_item_offset_nr(right, push_items - 1); copy_extent_buffer(left, right, btrfs_leaf_data(left) + @@ -3905,7 +3931,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans, ioff = btrfs_token_item_offset(left, item, &token); btrfs_set_token_item_offset(left, item, - ioff - (BTRFS_LEAF_DATA_SIZE(root->fs_info) - old_left_item_size), + ioff - (BTRFS_LEAF_DATA_SIZE(fs_info) - old_left_item_size), &token); } btrfs_set_header_nritems(left, old_left_nritems + push_items); @@ -3919,7 +3945,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans, push_space = btrfs_item_offset_nr(right, push_items - 1) - leaf_data_end(root, right); memmove_extent_buffer(right, btrfs_leaf_data(right) + - BTRFS_LEAF_DATA_SIZE(root->fs_info) - push_space, + BTRFS_LEAF_DATA_SIZE(fs_info) - push_space, btrfs_leaf_data(right) + leaf_data_end(root, right), push_space); @@ -3930,7 +3956,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans, } right_nritems -= push_items; btrfs_set_header_nritems(right, right_nritems); - push_space = BTRFS_LEAF_DATA_SIZE(root->fs_info); + push_space = BTRFS_LEAF_DATA_SIZE(fs_info); for (i = 0; i < right_nritems; i++) { item = btrfs_item_nr(i); @@ -3943,10 +3969,10 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans, if (right_nritems) btrfs_mark_buffer_dirty(right); else - clean_tree_block(trans, root->fs_info, right); + clean_tree_block(trans, fs_info, right); btrfs_item_key(right, &disk_key, 0); - fixup_low_keys(root->fs_info, path, &disk_key, 1); + fixup_low_keys(fs_info, path, &disk_key, 1); /* then fixup the leaf pointer in the path */ if (path->slots[0] < push_items) { @@ -4048,6 +4074,7 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans, struct extent_buffer *right, int slot, int mid, int nritems) { + struct btrfs_fs_info *fs_info = root->fs_info; int data_copy_size; int rt_data_off; int i; @@ -4065,12 +4092,11 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans, nritems * sizeof(struct btrfs_item)); copy_extent_buffer(right, l, - btrfs_leaf_data(right) + BTRFS_LEAF_DATA_SIZE(root->fs_info) - + btrfs_leaf_data(right) + BTRFS_LEAF_DATA_SIZE(fs_info) - data_copy_size, btrfs_leaf_data(l) + leaf_data_end(root, l), data_copy_size); - rt_data_off = BTRFS_LEAF_DATA_SIZE(root->fs_info) - - btrfs_item_end_nr(l, mid); + rt_data_off = BTRFS_LEAF_DATA_SIZE(fs_info) - btrfs_item_end_nr(l, mid); for (i = 0; i < nritems; i++) { struct btrfs_item *item = btrfs_item_nr(i); @@ -4193,7 +4219,7 @@ static noinline int split_leaf(struct btrfs_trans_handle *trans, l = path->nodes[0]; slot = path->slots[0]; if (extend && data_size + btrfs_item_size_nr(l, slot) + - sizeof(struct btrfs_item) > BTRFS_LEAF_DATA_SIZE(root->fs_info)) + sizeof(struct btrfs_item) > BTRFS_LEAF_DATA_SIZE(fs_info)) return -EOVERFLOW; /* first try to make some room by pushing left and right */ @@ -4235,14 +4261,14 @@ again: if (mid <= slot) { if (nritems == 1 || leaf_space_used(l, mid, nritems - mid) + data_size > - BTRFS_LEAF_DATA_SIZE(root->fs_info)) { + BTRFS_LEAF_DATA_SIZE(fs_info)) { if (slot >= nritems) { split = 0; } else { mid = slot; if (mid != nritems && leaf_space_used(l, mid, nritems - mid) + - data_size > BTRFS_LEAF_DATA_SIZE(root->fs_info)) { + data_size > BTRFS_LEAF_DATA_SIZE(fs_info)) { if (data_size && !tried_avoid_double) goto push_for_double; split = 2; @@ -4251,7 +4277,7 @@ again: } } else { if (leaf_space_used(l, 0, mid) + data_size > - BTRFS_LEAF_DATA_SIZE(root->fs_info)) { + BTRFS_LEAF_DATA_SIZE(fs_info)) { if (!extend && data_size && slot == 0) { split = 0; } else if ((extend || !data_size) && slot == 0) { @@ -4260,7 +4286,7 @@ again: mid = slot; if (mid != nritems && leaf_space_used(l, mid, nritems - mid) + - data_size > BTRFS_LEAF_DATA_SIZE(root->fs_info)) { + data_size > BTRFS_LEAF_DATA_SIZE(fs_info)) { if (data_size && !tried_avoid_double) goto push_for_double; split = 2; @@ -4279,7 +4305,7 @@ again: if (IS_ERR(right)) return PTR_ERR(right); - root_add_used(root, root->fs_info->nodesize); + root_add_used(root, fs_info->nodesize); memset_extent_buffer(right, 0, 0, sizeof(struct btrfs_header)); btrfs_set_header_bytenr(right, right->start); @@ -4551,6 +4577,7 @@ int btrfs_duplicate_item(struct btrfs_trans_handle *trans, void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path, u32 new_size, int from_end) { + struct btrfs_fs_info *fs_info = root->fs_info; int slot; struct extent_buffer *leaf; struct btrfs_item *item; @@ -4631,7 +4658,7 @@ void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path, btrfs_set_disk_key_offset(&disk_key, offset + size_diff); btrfs_set_item_key(leaf, &disk_key, slot); if (slot == 0) - fixup_low_keys(root->fs_info, path, &disk_key, 1); + fixup_low_keys(fs_info, path, &disk_key, 1); } item = btrfs_item_nr(slot); @@ -4650,6 +4677,7 @@ void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path, void btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path, u32 data_size) { + struct btrfs_fs_info *fs_info = root->fs_info; int slot; struct extent_buffer *leaf; struct btrfs_item *item; @@ -4677,8 +4705,8 @@ void btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path, BUG_ON(slot < 0); if (slot >= nritems) { btrfs_print_leaf(root, leaf); - btrfs_crit(root->fs_info, "slot %d too large, nritems %d", - slot, nritems); + btrfs_crit(fs_info, "slot %d too large, nritems %d", + slot, nritems); BUG_ON(1); } @@ -4721,6 +4749,7 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path, struct btrfs_key *cpu_key, u32 *data_size, u32 total_data, u32 total_size, int nr) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_item *item; int i; u32 nritems; @@ -4732,7 +4761,7 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path, if (path->slots[0] == 0) { btrfs_cpu_key_to_disk(&disk_key, cpu_key); - fixup_low_keys(root->fs_info, path, &disk_key, 1); + fixup_low_keys(fs_info, path, &disk_key, 1); } btrfs_unlock_up_safe(path, 1); @@ -4746,8 +4775,8 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path, if (btrfs_leaf_free_space(root, leaf) < total_size) { btrfs_print_leaf(root, leaf); - btrfs_crit(root->fs_info, "not enough freespace need %u have %d", - total_size, btrfs_leaf_free_space(root, leaf)); + btrfs_crit(fs_info, "not enough freespace need %u have %d", + total_size, btrfs_leaf_free_space(root, leaf)); BUG(); } @@ -4756,8 +4785,8 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path, if (old_data < data_end) { btrfs_print_leaf(root, leaf); - btrfs_crit(root->fs_info, "slot %d old_data %d data_end %d", - slot, old_data, data_end); + btrfs_crit(fs_info, "slot %d old_data %d data_end %d", + slot, old_data, data_end); BUG_ON(1); } /* @@ -4874,6 +4903,7 @@ int btrfs_insert_item(struct btrfs_trans_handle *trans, struct btrfs_root static void del_ptr(struct btrfs_root *root, struct btrfs_path *path, int level, int slot) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *parent = path->nodes[level]; u32 nritems; int ret; @@ -4881,7 +4911,7 @@ static void del_ptr(struct btrfs_root *root, struct btrfs_path *path, nritems = btrfs_header_nritems(parent); if (slot != nritems - 1) { if (level) - tree_mod_log_eb_move(root->fs_info, parent, slot, + tree_mod_log_eb_move(fs_info, parent, slot, slot + 1, nritems - slot - 1); memmove_extent_buffer(parent, btrfs_node_key_ptr_offset(slot), @@ -4889,7 +4919,7 @@ static void del_ptr(struct btrfs_root *root, struct btrfs_path *path, sizeof(struct btrfs_key_ptr) * (nritems - slot - 1)); } else if (level) { - ret = tree_mod_log_insert_key(root->fs_info, parent, slot, + ret = tree_mod_log_insert_key(fs_info, parent, slot, MOD_LOG_KEY_REMOVE, GFP_NOFS); BUG_ON(ret < 0); } @@ -4904,7 +4934,7 @@ static void del_ptr(struct btrfs_root *root, struct btrfs_path *path, struct btrfs_disk_key disk_key; btrfs_node_key(parent, &disk_key, 0); - fixup_low_keys(root->fs_info, path, &disk_key, level + 1); + fixup_low_keys(fs_info, path, &disk_key, level + 1); } btrfs_mark_buffer_dirty(parent); } @@ -4946,6 +4976,7 @@ static noinline void btrfs_del_leaf(struct btrfs_trans_handle *trans, int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, int slot, int nr) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *leaf; struct btrfs_item *item; u32 last_off; @@ -4997,7 +5028,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, btrfs_set_header_level(leaf, 0); } else { btrfs_set_path_blocking(path); - clean_tree_block(trans, root->fs_info, leaf); + clean_tree_block(trans, fs_info, leaf); btrfs_del_leaf(trans, root, path, leaf); } } else { @@ -5006,11 +5037,11 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_disk_key disk_key; btrfs_item_key(leaf, &disk_key, 0); - fixup_low_keys(root->fs_info, path, &disk_key, 1); + fixup_low_keys(fs_info, path, &disk_key, 1); } /* delete the leaf if it is mostly empty */ - if (used < BTRFS_LEAF_DATA_SIZE(root->fs_info) / 3) { + if (used < BTRFS_LEAF_DATA_SIZE(fs_info) / 3) { /* push_leaf_left fixes the path. * make sure the path still points to our leaf * for possible call to del_ptr below @@ -5339,6 +5370,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root, struct btrfs_root *right_root, btrfs_changed_cb_t changed_cb, void *ctx) { + struct btrfs_fs_info *fs_info = left_root->fs_info; int ret; int cmp; struct btrfs_path *left_path = NULL; @@ -5370,10 +5402,9 @@ int btrfs_compare_trees(struct btrfs_root *left_root, goto out; } - tmp_buf = kmalloc(left_root->fs_info->nodesize, - GFP_KERNEL | __GFP_NOWARN); + tmp_buf = kmalloc(fs_info->nodesize, GFP_KERNEL | __GFP_NOWARN); if (!tmp_buf) { - tmp_buf = vmalloc(left_root->fs_info->nodesize); + tmp_buf = vmalloc(fs_info->nodesize); if (!tmp_buf) { ret = -ENOMEM; goto out; @@ -5421,7 +5452,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root, * the right if possible or go up and right. */ - down_read(&left_root->fs_info->commit_root_sem); + down_read(&fs_info->commit_root_sem); left_level = btrfs_header_level(left_root->commit_root); left_root_level = left_level; left_path->nodes[left_level] = left_root->commit_root; @@ -5431,7 +5462,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root, right_root_level = right_level; right_path->nodes[right_level] = right_root->commit_root; extent_buffer_get(right_path->nodes[right_level]); - up_read(&left_root->fs_info->commit_root_sem); + up_read(&fs_info->commit_root_sem); if (left_level == 0) btrfs_item_key_to_cpu(left_path->nodes[left_level], diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index d62ff0be546a..92382d2a0e3b 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1343,9 +1343,11 @@ static inline int btrfs_should_fragment_free_space(struct btrfs_root *root, struct btrfs_block_group_cache *block_group) { - return (btrfs_test_opt(root->fs_info, FRAGMENT_METADATA) && + struct btrfs_fs_info *fs_info = root->fs_info; + + return (btrfs_test_opt(fs_info, FRAGMENT_METADATA) && block_group->flags & BTRFS_BLOCK_GROUP_METADATA) || - (btrfs_test_opt(root->fs_info, FRAGMENT_DATA) && + (btrfs_test_opt(fs_info, FRAGMENT_DATA) && block_group->flags & BTRFS_BLOCK_GROUP_DATA); } #endif @@ -2864,8 +2866,9 @@ static inline int btrfs_fs_closing(struct btrfs_fs_info *fs_info) */ static inline int btrfs_need_cleaner_sleep(struct btrfs_root *root) { - return (root->fs_info->sb->s_flags & MS_RDONLY || - btrfs_fs_closing(root->fs_info)); + struct btrfs_fs_info *fs_info = root->fs_info; + + return (fs_info->sb->s_flags & MS_RDONLY || btrfs_fs_closing(fs_info)); } static inline void free_fs_info(struct btrfs_fs_info *fs_info) diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c index 65cd759f455e..370f3989367c 100644 --- a/fs/btrfs/delayed-inode.c +++ b/fs/btrfs/delayed-inode.c @@ -541,6 +541,7 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_delayed_item *item) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *src_rsv; struct btrfs_block_rsv *dst_rsv; u64 num_bytes; @@ -550,12 +551,12 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans, return 0; src_rsv = trans->block_rsv; - dst_rsv = &root->fs_info->delayed_block_rsv; + dst_rsv = &fs_info->delayed_block_rsv; - num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1); + num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes); if (!ret) { - trace_btrfs_space_reservation(root->fs_info, "delayed_item", + trace_btrfs_space_reservation(fs_info, "delayed_item", item->key.objectid, num_bytes, 1); item->bytes_reserved = num_bytes; @@ -567,13 +568,14 @@ static int btrfs_delayed_item_reserve_metadata(struct btrfs_trans_handle *trans, static void btrfs_delayed_item_release_metadata(struct btrfs_root *root, struct btrfs_delayed_item *item) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *rsv; if (!item->bytes_reserved) return; - rsv = &root->fs_info->delayed_block_rsv; - trace_btrfs_space_reservation(root->fs_info, "delayed_item", + rsv = &fs_info->delayed_block_rsv; + trace_btrfs_space_reservation(fs_info, "delayed_item", item->key.objectid, item->bytes_reserved, 0); btrfs_block_rsv_release(root, rsv, @@ -586,6 +588,7 @@ static int btrfs_delayed_inode_reserve_metadata( struct inode *inode, struct btrfs_delayed_node *node) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *src_rsv; struct btrfs_block_rsv *dst_rsv; u64 num_bytes; @@ -593,9 +596,9 @@ static int btrfs_delayed_inode_reserve_metadata( bool release = false; src_rsv = trans->block_rsv; - dst_rsv = &root->fs_info->delayed_block_rsv; + dst_rsv = &fs_info->delayed_block_rsv; - num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1); + num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); /* * btrfs_dirty_inode will update the inode under btrfs_join_transaction @@ -620,7 +623,7 @@ static int btrfs_delayed_inode_reserve_metadata( ret = -ENOSPC; if (!ret) { node->bytes_reserved = num_bytes; - trace_btrfs_space_reservation(root->fs_info, + trace_btrfs_space_reservation(fs_info, "delayed_inode", btrfs_ino(inode), num_bytes, 1); @@ -653,8 +656,8 @@ static int btrfs_delayed_inode_reserve_metadata( if (!ret) goto out; - if (btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) { - btrfs_debug(root->fs_info, + if (btrfs_test_opt(fs_info, ENOSPC_DEBUG)) { + btrfs_debug(fs_info, "block rsv migrate returned %d", ret); WARN_ON(1); } @@ -662,7 +665,7 @@ static int btrfs_delayed_inode_reserve_metadata( * Ok this is a problem, let's just steal from the global rsv * since this really shouldn't happen that often. */ - ret = btrfs_block_rsv_migrate(&root->fs_info->global_block_rsv, + ret = btrfs_block_rsv_migrate(&fs_info->global_block_rsv, dst_rsv, num_bytes); goto out; } @@ -685,13 +688,13 @@ out: * how block rsvs. work. */ if (!ret) { - trace_btrfs_space_reservation(root->fs_info, "delayed_inode", + trace_btrfs_space_reservation(fs_info, "delayed_inode", btrfs_ino(inode), num_bytes, 1); node->bytes_reserved = num_bytes; } if (release) { - trace_btrfs_space_reservation(root->fs_info, "delalloc", + trace_btrfs_space_reservation(fs_info, "delalloc", btrfs_ino(inode), num_bytes, 0); btrfs_block_rsv_release(root, src_rsv, num_bytes); } @@ -702,13 +705,14 @@ out: static void btrfs_delayed_inode_release_metadata(struct btrfs_root *root, struct btrfs_delayed_node *node) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *rsv; if (!node->bytes_reserved) return; - rsv = &root->fs_info->delayed_block_rsv; - trace_btrfs_space_reservation(root->fs_info, "delayed_inode", + rsv = &fs_info->delayed_block_rsv; + trace_btrfs_space_reservation(fs_info, "delayed_inode", node->inode_id, node->bytes_reserved, 0); btrfs_block_rsv_release(root, rsv, node->bytes_reserved); @@ -1161,6 +1165,7 @@ __btrfs_commit_inode_delayed_items(struct btrfs_trans_handle *trans, static int __btrfs_run_delayed_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, int nr) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_delayed_root *delayed_root; struct btrfs_delayed_node *curr_node, *prev_node; struct btrfs_path *path; @@ -1177,7 +1182,7 @@ static int __btrfs_run_delayed_items(struct btrfs_trans_handle *trans, path->leave_spinning = 1; block_rsv = trans->block_rsv; - trans->block_rsv = &root->fs_info->delayed_block_rsv; + trans->block_rsv = &fs_info->delayed_block_rsv; delayed_root = btrfs_get_delayed_root(root); @@ -1499,7 +1504,8 @@ int btrfs_insert_delayed_dir_index(struct btrfs_trans_handle *trans, mutex_lock(&delayed_node->mutex); ret = __btrfs_add_delayed_insertion_item(delayed_node, delayed_item); if (unlikely(ret)) { - btrfs_err(root->fs_info, "err add delayed dir index item(name: %.*s) " + btrfs_err(root->fs_info, + "err add delayed dir index item(name: %.*s) " "into the insertion tree of the delayed node" "(root id: %llu, inode id: %llu, errno: %d)", name_len, name, delayed_node->root->objectid, @@ -1571,7 +1577,8 @@ int btrfs_delete_delayed_dir_index(struct btrfs_trans_handle *trans, mutex_lock(&node->mutex); ret = __btrfs_add_delayed_deletion_item(node, item); if (unlikely(ret)) { - btrfs_err(root->fs_info, "err add delayed dir index item(index: %llu) " + btrfs_err(root->fs_info, + "err add delayed dir index item(index: %llu) " "into the deletion tree of the delayed node" "(root id: %llu, inode id: %llu, errno: %d)", index, node->root->objectid, node->inode_id, @@ -1868,6 +1875,7 @@ release_node: int btrfs_delayed_delete_inode_ref(struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_delayed_node *delayed_node; /* @@ -1875,7 +1883,7 @@ int btrfs_delayed_delete_inode_ref(struct inode *inode) * leads to enospc problems. This means we also can't do * delayed inode refs */ - if (BTRFS_I(inode)->root->fs_info->log_root_recovering) + if (fs_info->log_root_recovering) return -EAGAIN; delayed_node = btrfs_get_or_create_delayed_node(inode); @@ -1902,7 +1910,7 @@ int btrfs_delayed_delete_inode_ref(struct inode *inode) set_bit(BTRFS_DELAYED_NODE_DEL_IREF, &delayed_node->flags); delayed_node->count++; - atomic_inc(&BTRFS_I(inode)->root->fs_info->delayed_root->items); + atomic_inc(&fs_info->delayed_root->items); release_node: mutex_unlock(&delayed_node->mutex); btrfs_release_delayed_node(delayed_node); diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c index e9bbff3c0029..9403f89c90a8 100644 --- a/fs/btrfs/dev-replace.c +++ b/fs/btrfs/dev-replace.c @@ -142,7 +142,7 @@ no_valid_dev_replace_entry_found: * missing */ if (!dev_replace->srcdev && - !btrfs_test_opt(dev_root->fs_info, DEGRADED)) { + !btrfs_test_opt(fs_info, DEGRADED)) { ret = -EIO; btrfs_warn(fs_info, "cannot mount because device replace operation is ongoing and"); @@ -151,7 +151,7 @@ no_valid_dev_replace_entry_found: src_devid); } if (!dev_replace->tgtdev && - !btrfs_test_opt(dev_root->fs_info, DEGRADED)) { + !btrfs_test_opt(fs_info, DEGRADED)) { ret = -EIO; btrfs_warn(fs_info, "cannot mount because device replace operation is ongoing and"); @@ -385,7 +385,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root, char *tgtdev_name, if (ret) btrfs_err(fs_info, "kobj add dev failed %d\n", ret); - btrfs_wait_ordered_roots(root->fs_info, -1, 0, (u64)-1); + btrfs_wait_ordered_roots(fs_info, -1, 0, (u64)-1); /* force writing the updated state information to disk */ trans = btrfs_start_transaction(root, 0); @@ -499,12 +499,12 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, * flush all outstanding I/O and inode extent mappings before the * copy operation is declared as being finished */ - ret = btrfs_start_delalloc_roots(root->fs_info, 0, -1); + ret = btrfs_start_delalloc_roots(fs_info, 0, -1); if (ret) { mutex_unlock(&dev_replace->lock_finishing_cancel_unmount); return ret; } - btrfs_wait_ordered_roots(root->fs_info, -1, 0, (u64)-1); + btrfs_wait_ordered_roots(fs_info, -1, 0, (u64)-1); trans = btrfs_start_transaction(root, 0); if (IS_ERR(trans)) { @@ -516,8 +516,8 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, mutex_lock(&uuid_mutex); /* keep away write_all_supers() during the finishing procedure */ - mutex_lock(&root->fs_info->fs_devices->device_list_mutex); - mutex_lock(&root->fs_info->chunk_mutex); + mutex_lock(&fs_info->fs_devices->device_list_mutex); + mutex_lock(&fs_info->chunk_mutex); btrfs_dev_replace_lock(dev_replace, 1); dev_replace->replace_state = scrub_ret ? BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED @@ -533,15 +533,15 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, src_device, tgt_device); } else { - btrfs_err_in_rcu(root->fs_info, - "btrfs_scrub_dev(%s, %llu, %s) failed %d", - src_device->missing ? "<missing disk>" : - rcu_str_deref(src_device->name), - src_device->devid, - rcu_str_deref(tgt_device->name), scrub_ret); + btrfs_err_in_rcu(fs_info, + "btrfs_scrub_dev(%s, %llu, %s) failed %d", + src_device->missing ? "<missing disk>" : + rcu_str_deref(src_device->name), + src_device->devid, + rcu_str_deref(tgt_device->name), scrub_ret); btrfs_dev_replace_unlock(dev_replace, 1); - mutex_unlock(&root->fs_info->chunk_mutex); - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->chunk_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); mutex_unlock(&uuid_mutex); if (tgt_device) btrfs_destroy_dev_replace_tgtdev(fs_info, tgt_device); @@ -550,12 +550,12 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, return scrub_ret; } - btrfs_info_in_rcu(root->fs_info, - "dev_replace from %s (devid %llu) to %s finished", - src_device->missing ? "<missing disk>" : - rcu_str_deref(src_device->name), - src_device->devid, - rcu_str_deref(tgt_device->name)); + btrfs_info_in_rcu(fs_info, + "dev_replace from %s (devid %llu) to %s finished", + src_device->missing ? "<missing disk>" : + rcu_str_deref(src_device->name), + src_device->devid, + rcu_str_deref(tgt_device->name)); tgt_device->is_tgtdev_for_dev_replace = 0; tgt_device->devid = src_device->devid; src_device->devid = BTRFS_DEV_REPLACE_DEVID; @@ -590,8 +590,8 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info, * superblock is scratched out so that it is no longer marked to * belong to this filesystem. */ - mutex_unlock(&root->fs_info->chunk_mutex); - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->chunk_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); mutex_unlock(&uuid_mutex); /* replace the sysfs entry */ diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c index 00719fab9476..595bfc9fd283 100644 --- a/fs/btrfs/dir-item.c +++ b/fs/btrfs/dir-item.c @@ -451,12 +451,12 @@ int verify_dir_item(struct btrfs_root *root, struct extent_buffer *leaf, struct btrfs_dir_item *dir_item) { + struct btrfs_fs_info *fs_info = root->fs_info; u16 namelen = BTRFS_NAME_LEN; u8 type = btrfs_dir_type(leaf, dir_item); if (type >= BTRFS_FT_MAX) { - btrfs_crit(root->fs_info, "invalid dir item type: %d", - (int)type); + btrfs_crit(fs_info, "invalid dir item type: %d", (int)type); return 1; } @@ -464,7 +464,7 @@ int verify_dir_item(struct btrfs_root *root, namelen = XATTR_NAME_MAX; if (btrfs_dir_name_len(leaf, dir_item) > namelen) { - btrfs_crit(root->fs_info, "invalid dir item name len: %u", + btrfs_crit(fs_info, "invalid dir item name len: %u", (unsigned)btrfs_dir_data_len(leaf, dir_item)); return 1; } @@ -472,8 +472,8 @@ int verify_dir_item(struct btrfs_root *root, /* BTRFS_MAX_XATTR_SIZE is the same for all dir items */ if ((btrfs_dir_data_len(leaf, dir_item) + btrfs_dir_name_len(leaf, dir_item)) > - BTRFS_MAX_XATTR_SIZE(root->fs_info)) { - btrfs_crit(root->fs_info, "invalid dir item name + data len: %u + %u", + BTRFS_MAX_XATTR_SIZE(fs_info)) { + btrfs_crit(fs_info, "invalid dir item name + data len: %u + %u", (unsigned)btrfs_dir_name_len(leaf, dir_item), (unsigned)btrfs_dir_data_len(leaf, dir_item)); return 1; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 18b41d765fc3..867a69dc1ffe 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -225,6 +225,7 @@ static struct extent_map *btree_get_extent(struct inode *inode, struct page *page, size_t pg_offset, u64 start, u64 len, int create) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree; struct extent_map *em; int ret; @@ -232,8 +233,7 @@ static struct extent_map *btree_get_extent(struct inode *inode, read_lock(&em_tree->lock); em = lookup_extent_mapping(em_tree, start, len); if (em) { - em->bdev = - BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; read_unlock(&em_tree->lock); goto out; } @@ -248,7 +248,7 @@ static struct extent_map *btree_get_extent(struct inode *inode, em->len = (u64)-1; em->block_len = (u64)-1; em->block_start = 0; - em->bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; write_lock(&em_tree->lock); ret = add_extent_mapping(em_tree, em, 0); @@ -445,6 +445,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root, struct extent_buffer *eb, u64 start, u64 parent_transid) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_io_tree *io_tree; int failed = 0; int ret; @@ -453,7 +454,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root, int failed_mirror = 0; clear_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags); - io_tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree; + io_tree = &BTRFS_I(fs_info->btree_inode)->io_tree; while (1) { ret = read_extent_buffer_pages(io_tree, eb, start, WAIT_COMPLETE, @@ -474,7 +475,7 @@ static int btree_read_extent_buffer_pages(struct btrfs_root *root, if (test_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags)) break; - num_copies = btrfs_num_copies(root->fs_info, + num_copies = btrfs_num_copies(fs_info, eb->start, eb->len); if (num_copies == 1) break; @@ -548,13 +549,14 @@ static int check_tree_block_fsid(struct btrfs_fs_info *fs_info, } #define CORRUPT(reason, eb, root, slot) \ - btrfs_crit(root->fs_info, "corrupt leaf, %s: block=%llu," \ - "root=%llu, slot=%d", reason, \ + btrfs_crit(fs_info, "corrupt leaf, %s: block=%llu," \ + "root=%llu, slot=%d", reason, \ btrfs_header_bytenr(eb), root->objectid, slot) static noinline int check_leaf(struct btrfs_root *root, struct extent_buffer *leaf) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_key key; struct btrfs_key leaf_key; u32 nritems = btrfs_header_nritems(leaf); @@ -565,7 +567,7 @@ static noinline int check_leaf(struct btrfs_root *root, /* Check the 0 item */ if (btrfs_item_offset_nr(leaf, 0) + btrfs_item_size_nr(leaf, 0) != - BTRFS_LEAF_DATA_SIZE(root->fs_info)) { + BTRFS_LEAF_DATA_SIZE(fs_info)) { CORRUPT("invalid item offset size pair", leaf, root, 0); return -EIO; } @@ -604,7 +606,7 @@ static noinline int check_leaf(struct btrfs_root *root, * all point outside of the leaf. */ if (btrfs_item_end_nr(leaf, slot) > - BTRFS_LEAF_DATA_SIZE(root->fs_info)) { + BTRFS_LEAF_DATA_SIZE(fs_info)) { CORRUPT("slot end outside of leaf", leaf, root, slot); return -EIO; } @@ -948,6 +950,7 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, int mirror_num, unsigned long bio_flags, u64 bio_offset) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); int async = check_async_write(inode, bio_flags); int ret; @@ -956,8 +959,8 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, * called for a read, do the setup so that checksum validation * can happen in the async kernel threads */ - ret = btrfs_bio_wq_end_io(BTRFS_I(inode)->root->fs_info, - bio, BTRFS_WQ_ENDIO_METADATA); + ret = btrfs_bio_wq_end_io(fs_info, bio, + BTRFS_WQ_ENDIO_METADATA); if (ret) goto out_w_error; ret = btrfs_map_bio(BTRFS_I(inode)->root, rw, bio, @@ -973,9 +976,8 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, * kthread helpers are used to submit writes so that * checksumming can happen in parallel across all CPUs */ - ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info, - inode, rw, bio, mirror_num, 0, - bio_offset, + ret = btrfs_wq_submit_bio(fs_info, inode, rw, bio, + mirror_num, 0, bio_offset, __btree_submit_bio_start, __btree_submit_bio_done); } @@ -1146,10 +1148,11 @@ struct extent_buffer *btrfs_find_tree_block(struct btrfs_fs_info *fs_info, struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root, u64 bytenr) { - if (btrfs_is_testing(root->fs_info)) - return alloc_test_extent_buffer(root->fs_info, bytenr, - root->fs_info->nodesize); - return alloc_extent_buffer(root->fs_info, bytenr); + struct btrfs_fs_info *fs_info = root->fs_info; + if (btrfs_is_testing(fs_info)) + return alloc_test_extent_buffer(fs_info, bytenr, + fs_info->nodesize); + return alloc_extent_buffer(fs_info, bytenr); } @@ -1449,7 +1452,7 @@ static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans, btrfs_set_header_owner(leaf, BTRFS_TREE_LOG_OBJECTID); root->node = leaf; - write_extent_buffer(root->node, root->fs_info->fsid, + write_extent_buffer(root->node, fs_info->fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE); btrfs_mark_buffer_dirty(root->node); btrfs_tree_unlock(root->node); @@ -1472,10 +1475,11 @@ int btrfs_init_log_root_tree(struct btrfs_trans_handle *trans, int btrfs_add_log_tree(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_root *log_root; struct btrfs_inode_item *inode_item; - log_root = alloc_log_tree(trans, root->fs_info); + log_root = alloc_log_tree(trans, fs_info); if (IS_ERR(log_root)) return PTR_ERR(log_root); @@ -1487,7 +1491,7 @@ int btrfs_add_log_tree(struct btrfs_trans_handle *trans, btrfs_set_stack_inode_size(inode_item, 3); btrfs_set_stack_inode_nlink(inode_item, 1); btrfs_set_stack_inode_nbytes(inode_item, - root->fs_info->nodesize); + fs_info->nodesize); btrfs_set_stack_inode_mode(inode_item, S_IFDIR | 0755); btrfs_set_root_node(&log_root->root_item, log_root->node); @@ -1791,6 +1795,7 @@ static void end_workqueue_fn(struct btrfs_work *work) static int cleaner_kthread(void *arg) { struct btrfs_root *root = arg; + struct btrfs_fs_info *fs_info = root->fs_info; int again; struct btrfs_trans_handle *trans; @@ -1805,10 +1810,10 @@ static int cleaner_kthread(void *arg) * Do not do anything if we might cause open_ctree() to block * before we have finished mounting the filesystem. */ - if (!root->fs_info->open) + if (!fs_info->open) goto sleep; - if (!mutex_trylock(&root->fs_info->cleaner_mutex)) + if (!mutex_trylock(&fs_info->cleaner_mutex)) goto sleep; /* @@ -1816,22 +1821,22 @@ static int cleaner_kthread(void *arg) * during the above check and trylock. */ if (btrfs_need_cleaner_sleep(root)) { - mutex_unlock(&root->fs_info->cleaner_mutex); + mutex_unlock(&fs_info->cleaner_mutex); goto sleep; } - mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex); + mutex_lock(&fs_info->cleaner_delayed_iput_mutex); btrfs_run_delayed_iputs(root); - mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex); + mutex_unlock(&fs_info->cleaner_delayed_iput_mutex); again = btrfs_clean_one_deleted_snapshot(root); - mutex_unlock(&root->fs_info->cleaner_mutex); + mutex_unlock(&fs_info->cleaner_mutex); /* * The defragger has dealt with the R/O remount and umount, * needn't do anything special here. */ - btrfs_run_defrag_inodes(root->fs_info); + btrfs_run_defrag_inodes(fs_info); /* * Acquires fs_info->delete_unused_bgs_mutex to avoid racing @@ -1841,7 +1846,7 @@ static int cleaner_kthread(void *arg) * can't hold, nor need to, fs_info->cleaner_mutex when deleting * unused block groups. */ - btrfs_delete_unused_bgs(root->fs_info); + btrfs_delete_unused_bgs(fs_info); sleep: if (!again) { set_current_state(TASK_INTERRUPTIBLE); @@ -1865,7 +1870,7 @@ sleep: trans = btrfs_attach_transaction(root); if (IS_ERR(trans)) { if (PTR_ERR(trans) != -ENOENT) - btrfs_err(root->fs_info, + btrfs_err(fs_info, "cleaner transaction attach returned %ld", PTR_ERR(trans)); } else { @@ -1873,7 +1878,7 @@ sleep: ret = btrfs_commit_transaction(trans, root); if (ret) - btrfs_err(root->fs_info, + btrfs_err(fs_info, "cleaner open transaction commit returned %d", ret); } @@ -1884,6 +1889,7 @@ sleep: static int transaction_kthread(void *arg) { struct btrfs_root *root = arg; + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_trans_handle *trans; struct btrfs_transaction *cur; u64 transid; @@ -1893,26 +1899,26 @@ static int transaction_kthread(void *arg) do { cannot_commit = false; - delay = HZ * root->fs_info->commit_interval; - mutex_lock(&root->fs_info->transaction_kthread_mutex); + delay = HZ * fs_info->commit_interval; + mutex_lock(&fs_info->transaction_kthread_mutex); - spin_lock(&root->fs_info->trans_lock); - cur = root->fs_info->running_transaction; + spin_lock(&fs_info->trans_lock); + cur = fs_info->running_transaction; if (!cur) { - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); goto sleep; } now = get_seconds(); if (cur->state < TRANS_STATE_BLOCKED && (now < cur->start_time || - now - cur->start_time < root->fs_info->commit_interval)) { - spin_unlock(&root->fs_info->trans_lock); + now - cur->start_time < fs_info->commit_interval)) { + spin_unlock(&fs_info->trans_lock); delay = HZ * 5; goto sleep; } transid = cur->transid; - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); /* If the file system is aborted, this will always fail. */ trans = btrfs_attach_transaction(root); @@ -1927,15 +1933,15 @@ static int transaction_kthread(void *arg) btrfs_end_transaction(trans, root); } sleep: - wake_up_process(root->fs_info->cleaner_kthread); - mutex_unlock(&root->fs_info->transaction_kthread_mutex); + wake_up_process(fs_info->cleaner_kthread); + mutex_unlock(&fs_info->transaction_kthread_mutex); if (unlikely(test_bit(BTRFS_FS_STATE_ERROR, - &root->fs_info->fs_state))) + &fs_info->fs_state))) btrfs_cleanup_transaction(root); set_current_state(TASK_INTERRUPTIBLE); if (!kthread_should_stop() && - (!btrfs_transaction_blocked(root->fs_info) || + (!btrfs_transaction_blocked(fs_info) || cannot_commit)) schedule_timeout(delay); __set_current_state(TASK_RUNNING); @@ -2428,8 +2434,8 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info, /* returns with log_tree_root freed on success */ ret = btrfs_recover_log_trees(log_tree_root); if (ret) { - btrfs_handle_fs_error(tree_root->fs_info, ret, - "Failed to recover log tree"); + btrfs_handle_fs_error(fs_info, ret, + "Failed to recover log tree"); free_extent_buffer(log_tree_root->node); kfree(log_tree_root); return ret; @@ -2794,7 +2800,7 @@ int open_ctree(struct super_block *sb, features = btrfs_super_incompat_flags(disk_super); features |= BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF; - if (tree_root->fs_info->compress_type == BTRFS_COMPRESS_LZO) + if (fs_info->compress_type == BTRFS_COMPRESS_LZO) features |= BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO; if (features & BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA) @@ -3023,8 +3029,8 @@ retry_root_backup: if (IS_ERR(fs_info->transaction_kthread)) goto fail_cleaner; - if (!btrfs_test_opt(tree_root->fs_info, SSD) && - !btrfs_test_opt(tree_root->fs_info, NOSSD) && + if (!btrfs_test_opt(fs_info, SSD) && + !btrfs_test_opt(fs_info, NOSSD) && !fs_info->fs_devices->rotating) { btrfs_info(fs_info, "detected SSD devices, enabling SSD mode"); btrfs_set_opt(fs_info->mount_opt, SSD); @@ -3037,9 +3043,9 @@ retry_root_backup: btrfs_apply_pending_changes(fs_info); #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY - if (btrfs_test_opt(tree_root->fs_info, CHECK_INTEGRITY)) { + if (btrfs_test_opt(fs_info, CHECK_INTEGRITY)) { ret = btrfsic_mount(tree_root, fs_devices, - btrfs_test_opt(tree_root->fs_info, + btrfs_test_opt(fs_info, CHECK_INTEGRITY_INCLUDING_EXTENT_DATA) ? 1 : 0, fs_info->check_integrity_print_mask); @@ -3055,7 +3061,7 @@ retry_root_backup: /* do not make disk changes in broken FS or nologreplay is given */ if (btrfs_super_log_root(disk_super) != 0 && - !btrfs_test_opt(tree_root->fs_info, NOLOGREPLAY)) { + !btrfs_test_opt(fs_info, NOLOGREPLAY)) { ret = btrfs_replay_log(fs_info, fs_devices); if (ret) { err = ret; @@ -3096,7 +3102,7 @@ retry_root_backup: if (sb->s_flags & MS_RDONLY) return 0; - if (btrfs_test_opt(tree_root->fs_info, FREE_SPACE_TREE) && + if (btrfs_test_opt(fs_info, FREE_SPACE_TREE) && !btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) { btrfs_info(fs_info, "creating free space tree"); ret = btrfs_create_free_space_tree(fs_info); @@ -3133,7 +3139,7 @@ retry_root_backup: btrfs_qgroup_rescan_resume(fs_info); - if (btrfs_test_opt(tree_root->fs_info, CLEAR_CACHE) && + if (btrfs_test_opt(fs_info, CLEAR_CACHE) && btrfs_fs_compat_ro(fs_info, FREE_SPACE_TREE)) { btrfs_info(fs_info, "clearing free space tree"); ret = btrfs_clear_free_space_tree(fs_info); @@ -3154,7 +3160,7 @@ retry_root_backup: close_ctree(fs_info); return ret; } - } else if (btrfs_test_opt(tree_root->fs_info, RESCAN_UUID_TREE) || + } else if (btrfs_test_opt(fs_info, RESCAN_UUID_TREE) || fs_info->generation != btrfs_super_uuid_tree_generation(disk_super)) { btrfs_info(fs_info, "checking UUID tree"); @@ -3231,7 +3237,7 @@ fail: return err; recovery_tree_root: - if (!btrfs_test_opt(tree_root->fs_info, USEBACKUPROOT)) + if (!btrfs_test_opt(fs_info, USEBACKUPROOT)) goto fail_tree_roots; free_root_pointers(fs_info, 0); @@ -3636,6 +3642,7 @@ int btrfs_calc_num_tolerated_disk_barrier_failures( static int write_all_supers(struct btrfs_root *root, int max_mirrors) { + struct btrfs_fs_info *fs_info = root->fs_info; struct list_head *head; struct btrfs_device *dev; struct btrfs_super_block *sb; @@ -3646,23 +3653,23 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors) int total_errors = 0; u64 flags; - do_barriers = !btrfs_test_opt(root->fs_info, NOBARRIER); - backup_super_roots(root->fs_info); + do_barriers = !btrfs_test_opt(fs_info, NOBARRIER); + backup_super_roots(fs_info); - sb = root->fs_info->super_for_commit; + sb = fs_info->super_for_commit; dev_item = &sb->dev_item; - mutex_lock(&root->fs_info->fs_devices->device_list_mutex); - head = &root->fs_info->fs_devices->devices; - max_errors = btrfs_super_num_devices(root->fs_info->super_copy) - 1; + mutex_lock(&fs_info->fs_devices->device_list_mutex); + head = &fs_info->fs_devices->devices; + max_errors = btrfs_super_num_devices(fs_info->super_copy) - 1; if (do_barriers) { - ret = barrier_all_devices(root->fs_info); + ret = barrier_all_devices(fs_info); if (ret) { mutex_unlock( - &root->fs_info->fs_devices->device_list_mutex); - btrfs_handle_fs_error(root->fs_info, ret, - "errors while submitting device barriers."); + &fs_info->fs_devices->device_list_mutex); + btrfs_handle_fs_error(fs_info, ret, + "errors while submitting device barriers."); return ret; } } @@ -3696,13 +3703,14 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors) total_errors++; } if (total_errors > max_errors) { - btrfs_err(root->fs_info, "%d errors while writing supers", - total_errors); - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + btrfs_err(fs_info, "%d errors while writing supers", + total_errors); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); /* FUA is masked off if unsupported and can't be the reason */ - btrfs_handle_fs_error(root->fs_info, -EIO, - "%d errors while writing supers", total_errors); + btrfs_handle_fs_error(fs_info, -EIO, + "%d errors while writing supers", + total_errors); return -EIO; } @@ -3717,10 +3725,11 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors) if (ret) total_errors++; } - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); if (total_errors > max_errors) { - btrfs_handle_fs_error(root->fs_info, -EIO, - "%d errors while writing supers", total_errors); + btrfs_handle_fs_error(fs_info, -EIO, + "%d errors while writing supers", + total_errors); return -EIO; } return 0; @@ -3833,14 +3842,14 @@ int btrfs_commit_super(struct btrfs_fs_info *fs_info) struct btrfs_root *root = fs_info->tree_root; struct btrfs_trans_handle *trans; - mutex_lock(&root->fs_info->cleaner_mutex); + mutex_lock(&fs_info->cleaner_mutex); btrfs_run_delayed_iputs(root); - mutex_unlock(&root->fs_info->cleaner_mutex); - wake_up_process(root->fs_info->cleaner_kthread); + mutex_unlock(&fs_info->cleaner_mutex); + wake_up_process(fs_info->cleaner_kthread); /* wait until ongoing cleanup work done */ - down_write(&root->fs_info->cleanup_work_sem); - up_write(&root->fs_info->cleanup_work_sem); + down_write(&fs_info->cleanup_work_sem); + up_write(&fs_info->cleanup_work_sem); trans = btrfs_join_transaction(root); if (IS_ERR(trans)) @@ -3886,7 +3895,7 @@ void close_ctree(struct btrfs_fs_info *fs_info) * block groups queued for removal, the deletion will be * skipped when we quit the cleaner thread. */ - btrfs_delete_unused_bgs(root->fs_info); + btrfs_delete_unused_bgs(fs_info); ret = btrfs_commit_super(fs_info); if (ret) @@ -3931,7 +3940,7 @@ void close_ctree(struct btrfs_fs_info *fs_info) iput(fs_info->btree_inode); #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY - if (btrfs_test_opt(root->fs_info, CHECK_INTEGRITY)) + if (btrfs_test_opt(fs_info, CHECK_INTEGRITY)) btrfsic_unmount(root, fs_info->fs_devices); #endif @@ -3949,7 +3958,7 @@ void close_ctree(struct btrfs_fs_info *fs_info) __btrfs_free_block_rsv(root->orphan_block_rsv); root->orphan_block_rsv = NULL; - lock_chunks(root->fs_info); + lock_chunks(fs_info); while (!list_empty(&fs_info->pinned_chunks)) { struct extent_map *em; @@ -3958,7 +3967,7 @@ void close_ctree(struct btrfs_fs_info *fs_info) list_del_init(&em->list); free_extent_map(em); } - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); } int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid, @@ -3980,6 +3989,7 @@ int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid, void btrfs_mark_buffer_dirty(struct extent_buffer *buf) { + struct btrfs_fs_info *fs_info; struct btrfs_root *root; u64 transid = btrfs_header_generation(buf); int was_dirty; @@ -3994,16 +4004,17 @@ void btrfs_mark_buffer_dirty(struct extent_buffer *buf) return; #endif root = BTRFS_I(buf->pages[0]->mapping->host)->root; + fs_info = root->fs_info; btrfs_assert_tree_locked(buf); - if (transid != root->fs_info->generation) + if (transid != fs_info->generation) WARN(1, KERN_CRIT "btrfs transid mismatch buffer %llu, " "found %llu running %llu\n", - buf->start, transid, root->fs_info->generation); + buf->start, transid, fs_info->generation); was_dirty = set_extent_buffer_dirty(buf); if (!was_dirty) - __percpu_counter_add(&root->fs_info->dirty_metadata_bytes, + __percpu_counter_add(&fs_info->dirty_metadata_bytes, buf->len, - root->fs_info->dirty_metadata_batch); + fs_info->dirty_metadata_batch); #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY if (btrfs_header_level(buf) == 0 && check_leaf(root, buf)) { btrfs_print_leaf(root, buf); @@ -4015,6 +4026,7 @@ void btrfs_mark_buffer_dirty(struct extent_buffer *buf) static void __btrfs_btree_balance_dirty(struct btrfs_root *root, int flush_delayed) { + struct btrfs_fs_info *fs_info = root->fs_info; /* * looks as though older kernels can get into trouble with * this code, they end up stuck in balance_dirty_pages forever @@ -4027,11 +4039,10 @@ static void __btrfs_btree_balance_dirty(struct btrfs_root *root, if (flush_delayed) btrfs_balance_delayed_items(root); - ret = percpu_counter_compare(&root->fs_info->dirty_metadata_bytes, + ret = percpu_counter_compare(&fs_info->dirty_metadata_bytes, BTRFS_DIRTY_METADATA_THRESH); if (ret > 0) { - balance_dirty_pages_ratelimited( - root->fs_info->btree_inode->i_mapping); + balance_dirty_pages_ratelimited(fs_info->btree_inode->i_mapping); } } @@ -4200,12 +4211,14 @@ static int btrfs_check_super_valid(struct btrfs_fs_info *fs_info, static void btrfs_error_commit_super(struct btrfs_root *root) { - mutex_lock(&root->fs_info->cleaner_mutex); + struct btrfs_fs_info *fs_info = root->fs_info; + + mutex_lock(&fs_info->cleaner_mutex); btrfs_run_delayed_iputs(root); - mutex_unlock(&root->fs_info->cleaner_mutex); + mutex_unlock(&fs_info->cleaner_mutex); - down_write(&root->fs_info->cleanup_work_sem); - up_write(&root->fs_info->cleanup_work_sem); + down_write(&fs_info->cleanup_work_sem); + up_write(&fs_info->cleanup_work_sem); /* cleanup FS via transaction */ btrfs_cleanup_transaction(root); @@ -4253,6 +4266,7 @@ static void btrfs_destroy_all_ordered_extents(struct btrfs_fs_info *fs_info) static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct rb_node *node; struct btrfs_delayed_ref_root *delayed_refs; struct btrfs_delayed_ref_node *ref; @@ -4263,7 +4277,7 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans, spin_lock(&delayed_refs->lock); if (atomic_read(&delayed_refs->num_entries) == 0) { spin_unlock(&delayed_refs->lock); - btrfs_info(root->fs_info, "delayed_refs has NO entry"); + btrfs_info(fs_info, "delayed_refs has NO entry"); return ret; } @@ -4374,6 +4388,7 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root, struct extent_io_tree *dirty_pages, int mark) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; struct extent_buffer *eb; u64 start = 0; @@ -4387,8 +4402,8 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root, clear_extent_bits(dirty_pages, start, end, mark); while (start <= end) { - eb = btrfs_find_tree_block(root->fs_info, start); - start += root->fs_info->nodesize; + eb = btrfs_find_tree_block(fs_info, start); + start += fs_info->nodesize; if (!eb) continue; wait_on_extent_buffer_writeback(eb); @@ -4406,6 +4421,7 @@ static int btrfs_destroy_marked_extents(struct btrfs_root *root, static int btrfs_destroy_pinned_extent(struct btrfs_root *root, struct extent_io_tree *pinned_extents) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_io_tree *unpin; u64 start; u64 end; @@ -4426,10 +4442,10 @@ again: } if (loop) { - if (unpin == &root->fs_info->freed_extents[0]) - unpin = &root->fs_info->freed_extents[1]; + if (unpin == &fs_info->freed_extents[0]) + unpin = &fs_info->freed_extents[1]; else - unpin = &root->fs_info->freed_extents[0]; + unpin = &fs_info->freed_extents[0]; loop = false; goto again; } @@ -4440,13 +4456,15 @@ again: void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; + btrfs_destroy_delayed_refs(cur_trans, root); cur_trans->state = TRANS_STATE_COMMIT_START; - wake_up(&root->fs_info->transaction_blocked_wait); + wake_up(&fs_info->transaction_blocked_wait); cur_trans->state = TRANS_STATE_UNBLOCKED; - wake_up(&root->fs_info->transaction_wait); + wake_up(&fs_info->transaction_wait); btrfs_destroy_delayed_inodes(root); btrfs_assert_delayed_root_empty(root); @@ -4454,7 +4472,7 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans, btrfs_destroy_marked_extents(root, &cur_trans->dirty_pages, EXTENT_DIRTY); btrfs_destroy_pinned_extent(root, - root->fs_info->pinned_extents); + fs_info->pinned_extents); cur_trans->state =TRANS_STATE_COMPLETED; wake_up(&cur_trans->commit_wait); @@ -4467,25 +4485,26 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans, static int btrfs_cleanup_transaction(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_transaction *t; - mutex_lock(&root->fs_info->transaction_kthread_mutex); + mutex_lock(&fs_info->transaction_kthread_mutex); - spin_lock(&root->fs_info->trans_lock); - while (!list_empty(&root->fs_info->trans_list)) { - t = list_first_entry(&root->fs_info->trans_list, + spin_lock(&fs_info->trans_lock); + while (!list_empty(&fs_info->trans_list)) { + t = list_first_entry(&fs_info->trans_list, struct btrfs_transaction, list); if (t->state >= TRANS_STATE_COMMIT_START) { atomic_inc(&t->use_count); - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); btrfs_wait_for_commit(root, t->transid); btrfs_put_transaction(t); - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); continue; } - if (t == root->fs_info->running_transaction) { + if (t == fs_info->running_transaction) { t->state = TRANS_STATE_COMMIT_DOING; - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); /* * We wait for 0 num_writers since we don't hold a trans * handle open currently for this transaction. @@ -4493,27 +4512,27 @@ static int btrfs_cleanup_transaction(struct btrfs_root *root) wait_event(t->writer_wait, atomic_read(&t->num_writers) == 0); } else { - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); } btrfs_cleanup_one_transaction(t, root); - spin_lock(&root->fs_info->trans_lock); - if (t == root->fs_info->running_transaction) - root->fs_info->running_transaction = NULL; + spin_lock(&fs_info->trans_lock); + if (t == fs_info->running_transaction) + fs_info->running_transaction = NULL; list_del_init(&t->list); - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); btrfs_put_transaction(t); trace_btrfs_transaction_commit(root); - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); } - spin_unlock(&root->fs_info->trans_lock); - btrfs_destroy_all_ordered_extents(root->fs_info); + spin_unlock(&fs_info->trans_lock); + btrfs_destroy_all_ordered_extents(fs_info); btrfs_destroy_delayed_inodes(root); btrfs_assert_delayed_root_empty(root); - btrfs_destroy_pinned_extent(root, root->fs_info->pinned_extents); - btrfs_destroy_all_delalloc_inodes(root->fs_info); - mutex_unlock(&root->fs_info->transaction_kthread_mutex); + btrfs_destroy_pinned_extent(root, fs_info->pinned_extents); + btrfs_destroy_all_delalloc_inodes(fs_info); + mutex_unlock(&fs_info->transaction_kthread_mutex); return 0; } diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c index 2513a7f53334..340d90751263 100644 --- a/fs/btrfs/export.c +++ b/fs/btrfs/export.c @@ -153,6 +153,7 @@ static struct dentry *btrfs_fh_to_dentry(struct super_block *sb, struct fid *fh, static struct dentry *btrfs_get_parent(struct dentry *child) { struct inode *dir = d_inode(child); + struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb); struct btrfs_root *root = BTRFS_I(dir)->root; struct btrfs_path *path; struct extent_buffer *leaf; @@ -169,7 +170,7 @@ static struct dentry *btrfs_get_parent(struct dentry *child) key.objectid = root->root_key.objectid; key.type = BTRFS_ROOT_BACKREF_KEY; key.offset = (u64)-1; - root = root->fs_info->tree_root; + root = fs_info->tree_root; } else { key.objectid = btrfs_ino(dir); key.type = BTRFS_INODE_REF_KEY; @@ -205,13 +206,13 @@ static struct dentry *btrfs_get_parent(struct dentry *child) btrfs_free_path(path); if (found_key.type == BTRFS_ROOT_BACKREF_KEY) { - return btrfs_get_dentry(root->fs_info->sb, key.objectid, + return btrfs_get_dentry(fs_info->sb, key.objectid, found_key.offset, 0, 0); } key.type = BTRFS_INODE_ITEM_KEY; key.offset = 0; - return d_obtain_alias(btrfs_iget(root->fs_info->sb, &key, root, NULL)); + return d_obtain_alias(btrfs_iget(fs_info->sb, &key, root, NULL)); fail: btrfs_free_path(path); return ERR_PTR(ret); @@ -222,6 +223,7 @@ static int btrfs_get_name(struct dentry *parent, char *name, { struct inode *inode = d_inode(child); struct inode *dir = d_inode(parent); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_path *path; struct btrfs_root *root = BTRFS_I(dir)->root; struct btrfs_inode_ref *iref; @@ -250,7 +252,7 @@ static int btrfs_get_name(struct dentry *parent, char *name, key.objectid = BTRFS_I(inode)->root->root_key.objectid; key.type = BTRFS_ROOT_BACKREF_KEY; key.offset = (u64)-1; - root = root->fs_info->tree_root; + root = fs_info->tree_root; } else { key.objectid = ino; key.offset = btrfs_ino(dir); diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index bc56e04dd3da..5ff497414a8f 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -229,10 +229,11 @@ block_group_cache_tree_search(struct btrfs_fs_info *info, u64 bytenr, static int add_excluded_extent(struct btrfs_root *root, u64 start, u64 num_bytes) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 end = start + num_bytes - 1; - set_extent_bits(&root->fs_info->freed_extents[0], + set_extent_bits(&fs_info->freed_extents[0], start, end, EXTENT_UPTODATE); - set_extent_bits(&root->fs_info->freed_extents[1], + set_extent_bits(&fs_info->freed_extents[1], start, end, EXTENT_UPTODATE); return 0; } @@ -240,20 +241,22 @@ static int add_excluded_extent(struct btrfs_root *root, static void free_excluded_extents(struct btrfs_root *root, struct btrfs_block_group_cache *cache) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 start, end; start = cache->key.objectid; end = start + cache->key.offset - 1; - clear_extent_bits(&root->fs_info->freed_extents[0], + clear_extent_bits(&fs_info->freed_extents[0], start, end, EXTENT_UPTODATE); - clear_extent_bits(&root->fs_info->freed_extents[1], + clear_extent_bits(&fs_info->freed_extents[1], start, end, EXTENT_UPTODATE); } static int exclude_super_stripes(struct btrfs_root *root, struct btrfs_block_group_cache *cache) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 bytenr; u64 *logical; int stripe_len; @@ -270,7 +273,7 @@ static int exclude_super_stripes(struct btrfs_root *root, for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) { bytenr = btrfs_sb_offset(i); - ret = btrfs_rmap_block(&root->fs_info->mapping_tree, + ret = btrfs_rmap_block(&fs_info->mapping_tree, cache->key.objectid, bytenr, 0, &logical, &nr, &stripe_len); if (ret) @@ -336,10 +339,12 @@ static void put_caching_control(struct btrfs_caching_control *ctl) static void fragment_free_space(struct btrfs_root *root, struct btrfs_block_group_cache *block_group) { + struct btrfs_fs_info *fs_info = root->fs_info; + u64 start = block_group->key.objectid; u64 len = block_group->key.offset; u64 chunk = block_group->flags & BTRFS_BLOCK_GROUP_METADATA ? - root->fs_info->nodesize : root->fs_info->sectorsize; + fs_info->nodesize : fs_info->sectorsize; u64 step = chunk << 1; while (len > chunk) { @@ -398,9 +403,9 @@ u64 add_new_free_space(struct btrfs_block_group_cache *block_group, static int load_extent_tree_free(struct btrfs_caching_control *caching_ctl) { - struct btrfs_block_group_cache *block_group; - struct btrfs_fs_info *fs_info; - struct btrfs_root *extent_root; + struct btrfs_block_group_cache *block_group = caching_ctl->block_group; + struct btrfs_fs_info *fs_info = block_group->fs_info; + struct btrfs_root *extent_root = fs_info->extent_root; struct btrfs_path *path; struct extent_buffer *leaf; struct btrfs_key key; @@ -410,10 +415,6 @@ static int load_extent_tree_free(struct btrfs_caching_control *caching_ctl) int ret; bool wakeup = true; - block_group = caching_ctl->block_group; - fs_info = block_group->fs_info; - extent_root = fs_info->extent_root; - path = btrfs_alloc_path(); if (!path) return -ENOMEM; @@ -792,6 +793,7 @@ void btrfs_clear_space_info_full(struct btrfs_fs_info *info) /* simple helper to search for an existing data extent at a given offset */ int btrfs_lookup_data_extent(struct btrfs_root *root, u64 start, u64 len) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; struct btrfs_key key; struct btrfs_path *path; @@ -803,8 +805,7 @@ int btrfs_lookup_data_extent(struct btrfs_root *root, u64 start, u64 len) key.objectid = start; key.offset = len; key.type = BTRFS_EXTENT_ITEM_KEY; - ret = btrfs_search_slot(NULL, root->fs_info->extent_root, &key, path, - 0, 0); + ret = btrfs_search_slot(NULL, fs_info->extent_root, &key, path, 0, 0); btrfs_free_path(path); return ret; } @@ -822,6 +823,7 @@ int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 bytenr, u64 offset, int metadata, u64 *refs, u64 *flags) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_delayed_ref_head *head; struct btrfs_delayed_ref_root *delayed_refs; struct btrfs_path *path; @@ -837,8 +839,8 @@ int btrfs_lookup_extent_info(struct btrfs_trans_handle *trans, * If we don't have skinny metadata, don't bother doing anything * different */ - if (metadata && !btrfs_fs_incompat(root->fs_info, SKINNY_METADATA)) { - offset = root->fs_info->nodesize; + if (metadata && !btrfs_fs_incompat(fs_info, SKINNY_METADATA)) { + offset = fs_info->nodesize; metadata = 0; } @@ -859,8 +861,7 @@ search_again: else key.type = BTRFS_EXTENT_ITEM_KEY; - ret = btrfs_search_slot(trans, root->fs_info->extent_root, - &key, path, 0, 0); + ret = btrfs_search_slot(trans, fs_info->extent_root, &key, path, 0, 0); if (ret < 0) goto out_free; @@ -871,7 +872,7 @@ search_again: path->slots[0]); if (key.objectid == bytenr && key.type == BTRFS_EXTENT_ITEM_KEY && - key.offset == root->fs_info->nodesize) + key.offset == fs_info->nodesize) ret = 0; } } @@ -1552,6 +1553,7 @@ int lookup_inline_extent_backref(struct btrfs_trans_handle *trans, u64 parent, u64 root_objectid, u64 owner, u64 offset, int insert) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_key key; struct extent_buffer *leaf; struct btrfs_extent_item *ei; @@ -1565,8 +1567,7 @@ int lookup_inline_extent_backref(struct btrfs_trans_handle *trans, int want; int ret; int err = 0; - bool skinny_metadata = btrfs_fs_incompat(root->fs_info, - SKINNY_METADATA); + bool skinny_metadata = btrfs_fs_incompat(fs_info, SKINNY_METADATA); key.objectid = bytenr; key.type = BTRFS_EXTENT_ITEM_KEY; @@ -2037,6 +2038,7 @@ static int btrfs_issue_discard(struct block_device *bdev, u64 start, u64 len, int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr, u64 num_bytes, u64 *actual_bytes) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; u64 discarded_bytes = 0; struct btrfs_bio *bbio = NULL; @@ -2046,10 +2048,10 @@ int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr, * Avoid races with device replace and make sure our bbio has devices * associated to its stripes that don't go away while we are discarding. */ - btrfs_bio_counter_inc_blocked(root->fs_info); + btrfs_bio_counter_inc_blocked(fs_info); /* Tell the block device(s) that the sectors can be discarded */ - ret = btrfs_map_block(root->fs_info, REQ_DISCARD, - bytenr, &num_bytes, &bbio, 0); + ret = btrfs_map_block(fs_info, REQ_DISCARD, bytenr, &num_bytes, + &bbio, 0); /* Error condition is -ENOMEM */ if (!ret) { struct btrfs_bio_stripe *stripe = bbio->stripes; @@ -2079,7 +2081,7 @@ int btrfs_discard_extent(struct btrfs_root *root, u64 bytenr, } btrfs_put_bbio(bbio); } - btrfs_bio_counter_dec(root->fs_info); + btrfs_bio_counter_dec(fs_info); if (actual_bytes) *actual_bytes = discarded_bytes; @@ -2166,7 +2168,7 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans, path->reada = READA_FORWARD; path->leave_spinning = 1; /* now insert the actual backref */ - ret = insert_extent_backref(trans, root->fs_info->extent_root, + ret = insert_extent_backref(trans, fs_info->extent_root, path, bytenr, parent, root_objectid, owner, offset, refs_to_add); if (ret) @@ -2182,6 +2184,7 @@ static int run_delayed_data_ref(struct btrfs_trans_handle *trans, struct btrfs_delayed_extent_op *extent_op, int insert_reserved) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret = 0; struct btrfs_delayed_data_ref *ref; struct btrfs_key ins; @@ -2194,7 +2197,7 @@ static int run_delayed_data_ref(struct btrfs_trans_handle *trans, ins.type = BTRFS_EXTENT_ITEM_KEY; ref = btrfs_delayed_node_to_data_ref(node); - trace_run_delayed_data_ref(root->fs_info, node, ref, node->action); + trace_run_delayed_data_ref(fs_info, node, ref, node->action); if (node->type == BTRFS_SHARED_DATA_REF_KEY) parent = ref->parent; @@ -2246,6 +2249,7 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans, struct btrfs_delayed_ref_node *node, struct btrfs_delayed_extent_op *extent_op) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_key key; struct btrfs_path *path; struct btrfs_extent_item *ei; @@ -2258,7 +2262,7 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans, if (trans->aborted) return 0; - if (metadata && !btrfs_fs_incompat(root->fs_info, SKINNY_METADATA)) + if (metadata && !btrfs_fs_incompat(fs_info, SKINNY_METADATA)) metadata = 0; path = btrfs_alloc_path(); @@ -2278,8 +2282,7 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans, again: path->reada = READA_FORWARD; path->leave_spinning = 1; - ret = btrfs_search_slot(trans, root->fs_info->extent_root, &key, - path, 0, 1); + ret = btrfs_search_slot(trans, fs_info->extent_root, &key, path, 0, 1); if (ret < 0) { err = ret; goto out; @@ -2314,7 +2317,7 @@ again: item_size = btrfs_item_size_nr(leaf, path->slots[0]); #ifdef BTRFS_COMPAT_EXTENT_TREE_V0 if (item_size < sizeof(*ei)) { - ret = convert_extent_item_v0(trans, root->fs_info->extent_root, + ret = convert_extent_item_v0(trans, fs_info->extent_root, path, (u64)-1, 0); if (ret < 0) { err = ret; @@ -2340,16 +2343,16 @@ static int run_delayed_tree_ref(struct btrfs_trans_handle *trans, struct btrfs_delayed_extent_op *extent_op, int insert_reserved) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret = 0; struct btrfs_delayed_tree_ref *ref; struct btrfs_key ins; u64 parent = 0; u64 ref_root = 0; - bool skinny_metadata = btrfs_fs_incompat(root->fs_info, - SKINNY_METADATA); + bool skinny_metadata = btrfs_fs_incompat(fs_info, SKINNY_METADATA); ref = btrfs_delayed_node_to_tree_ref(node); - trace_run_delayed_tree_ref(root->fs_info, node, ref, node->action); + trace_run_delayed_tree_ref(fs_info, node, ref, node->action); if (node->type == BTRFS_SHARED_BLOCK_REF_KEY) parent = ref->parent; @@ -2394,6 +2397,7 @@ static int run_one_delayed_ref(struct btrfs_trans_handle *trans, struct btrfs_delayed_extent_op *extent_op, int insert_reserved) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret = 0; if (trans->aborted) { @@ -2413,22 +2417,20 @@ static int run_one_delayed_ref(struct btrfs_trans_handle *trans, */ BUG_ON(extent_op); head = btrfs_delayed_node_to_head(node); - trace_run_delayed_ref_head(root->fs_info, node, head, - node->action); + trace_run_delayed_ref_head(fs_info, node, head, node->action); if (insert_reserved) { btrfs_pin_extent(root, node->bytenr, node->num_bytes, 1); if (head->is_data) { - ret = btrfs_del_csums(trans, root->fs_info, + ret = btrfs_del_csums(trans, fs_info, node->bytenr, node->num_bytes); } } /* Also free its reserved qgroup space */ - btrfs_qgroup_free_delayed_ref(root->fs_info, - head->qgroup_ref_root, + btrfs_qgroup_free_delayed_ref(fs_info, head->qgroup_ref_root, head->qgroup_reserved); return ret; } @@ -2745,18 +2747,19 @@ static u64 find_middle(struct rb_root *root) static inline u64 heads_to_leaves(struct btrfs_root *root, u64 heads) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 num_bytes; num_bytes = heads * (sizeof(struct btrfs_extent_item) + sizeof(struct btrfs_extent_inline_ref)); - if (!btrfs_fs_incompat(root->fs_info, SKINNY_METADATA)) + if (!btrfs_fs_incompat(fs_info, SKINNY_METADATA)) num_bytes += heads * sizeof(struct btrfs_tree_block_info); /* * We don't ever fill up leaves all the way so multiply by 2 just to be * closer to what we're really going to want to use. */ - return div_u64(num_bytes, BTRFS_LEAF_DATA_SIZE(root->fs_info)); + return div_u64(num_bytes, BTRFS_LEAF_DATA_SIZE(fs_info)); } /* @@ -2765,14 +2768,15 @@ static inline u64 heads_to_leaves(struct btrfs_root *root, u64 heads) */ u64 btrfs_csum_bytes_to_leaves(struct btrfs_root *root, u64 csum_bytes) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 csum_size; u64 num_csums_per_leaf; u64 num_csums; - csum_size = BTRFS_MAX_ITEM_SIZE(root->fs_info); + csum_size = BTRFS_MAX_ITEM_SIZE(fs_info); num_csums_per_leaf = div64_u64(csum_size, - (u64)btrfs_super_csum_size(root->fs_info->super_copy)); - num_csums = div64_u64(csum_bytes, root->fs_info->sectorsize); + (u64)btrfs_super_csum_size(fs_info->super_copy)); + num_csums = div64_u64(csum_bytes, fs_info->sectorsize); num_csums += num_csums_per_leaf - 1; num_csums = div64_u64(num_csums, num_csums_per_leaf); return num_csums; @@ -2781,6 +2785,7 @@ u64 btrfs_csum_bytes_to_leaves(struct btrfs_root *root, u64 csum_bytes) int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *global_rsv; u64 num_heads = trans->transaction->delayed_refs.num_heads_ready; u64 csum_bytes = trans->transaction->delayed_refs.pending_csums; @@ -2788,15 +2793,15 @@ int btrfs_check_space_for_delayed_refs(struct btrfs_trans_handle *trans, u64 num_bytes, num_dirty_bgs_bytes; int ret = 0; - num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1); + num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); num_heads = heads_to_leaves(root, num_heads); if (num_heads > 1) - num_bytes += (num_heads - 1) * root->fs_info->nodesize; + num_bytes += (num_heads - 1) * fs_info->nodesize; num_bytes <<= 1; - num_bytes += btrfs_csum_bytes_to_leaves(root, csum_bytes) * root->fs_info->nodesize; - num_dirty_bgs_bytes = btrfs_calc_trans_metadata_size(root->fs_info, + num_bytes += btrfs_csum_bytes_to_leaves(root, csum_bytes) * fs_info->nodesize; + num_dirty_bgs_bytes = btrfs_calc_trans_metadata_size(fs_info, num_dirty_bgs); - global_rsv = &root->fs_info->global_block_rsv; + global_rsv = &fs_info->global_block_rsv; /* * If we can't allocate any more chunks lets make sure we have _lots_ of @@ -2879,6 +2884,7 @@ done: int btrfs_async_run_delayed_refs(struct btrfs_root *root, unsigned long count, int wait) { + struct btrfs_fs_info *fs_info = root->fs_info; struct async_delayed_refs *async; int ret; @@ -2886,7 +2892,7 @@ int btrfs_async_run_delayed_refs(struct btrfs_root *root, if (!async) return -ENOMEM; - async->root = root->fs_info->tree_root; + async->root = fs_info->tree_root; async->count = count; async->error = 0; if (wait) @@ -2898,7 +2904,7 @@ int btrfs_async_run_delayed_refs(struct btrfs_root *root, btrfs_init_work(&async->work, btrfs_extent_refs_helper, delayed_ref_async_start, NULL, NULL); - btrfs_queue_work(root->fs_info->extent_workers, &async->work); + btrfs_queue_work(fs_info->extent_workers, &async->work); if (wait) { wait_for_completion(&async->wait); @@ -2922,6 +2928,7 @@ int btrfs_async_run_delayed_refs(struct btrfs_root *root, int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans, struct btrfs_root *root, unsigned long count) { + struct btrfs_fs_info *fs_info = root->fs_info; struct rb_node *node; struct btrfs_delayed_ref_root *delayed_refs; struct btrfs_delayed_ref_head *head; @@ -2933,11 +2940,11 @@ int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans, if (trans->aborted) return 0; - if (root->fs_info->creating_free_space_tree) + if (fs_info->creating_free_space_tree) return 0; - if (root == root->fs_info->extent_root) - root = root->fs_info->tree_root; + if (root == fs_info->extent_root) + root = fs_info->tree_root; delayed_refs = &trans->transaction->delayed_refs; if (count == 0) @@ -3006,6 +3013,7 @@ int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans, u64 bytenr, u64 num_bytes, u64 flags, int level, int is_data) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_delayed_extent_op *extent_op; int ret; @@ -3019,7 +3027,7 @@ int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans, extent_op->is_data = is_data ? true : false; extent_op->level = level; - ret = btrfs_add_delayed_extent_op(root->fs_info, trans, bytenr, + ret = btrfs_add_delayed_extent_op(fs_info, trans, bytenr, num_bytes, extent_op); if (ret) btrfs_free_delayed_extent_op(extent_op); @@ -3093,7 +3101,8 @@ static noinline int check_committed_ref(struct btrfs_trans_handle *trans, struct btrfs_path *path, u64 objectid, u64 offset, u64 bytenr) { - struct btrfs_root *extent_root = root->fs_info->extent_root; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_root *extent_root = fs_info->extent_root; struct extent_buffer *leaf; struct btrfs_extent_data_ref *ref; struct btrfs_extent_inline_ref *iref; @@ -3200,6 +3209,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans, struct extent_buffer *buf, int full_backref, int inc) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 bytenr; u64 num_bytes; u64 parent; @@ -3214,7 +3224,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans, u64, u64, u64, u64, u64, u64); - if (btrfs_is_testing(root->fs_info)) + if (btrfs_is_testing(fs_info)) return 0; ref_root = btrfs_header_owner(buf); @@ -3257,7 +3267,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans, goto fail; } else { bytenr = btrfs_node_blockptr(buf, i); - num_bytes = root->fs_info->nodesize; + num_bytes = fs_info->nodesize; ret = process_func(trans, root, bytenr, num_bytes, parent, ref_root, level - 1, 0); if (ret) @@ -3287,7 +3297,8 @@ static int write_one_cache_group(struct btrfs_trans_handle *trans, struct btrfs_block_group_cache *cache) { int ret; - struct btrfs_root *extent_root = root->fs_info->extent_root; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_root *extent_root = fs_info->extent_root; unsigned long bi; struct extent_buffer *leaf; @@ -3312,19 +3323,18 @@ static struct btrfs_block_group_cache * next_block_group(struct btrfs_root *root, struct btrfs_block_group_cache *cache) { + struct btrfs_fs_info *fs_info = root->fs_info; struct rb_node *node; - spin_lock(&root->fs_info->block_group_cache_lock); + spin_lock(&fs_info->block_group_cache_lock); /* If our block group was removed, we need a full search. */ if (RB_EMPTY_NODE(&cache->cache_node)) { const u64 next_bytenr = cache->key.objectid + cache->key.offset; - spin_unlock(&root->fs_info->block_group_cache_lock); + spin_unlock(&fs_info->block_group_cache_lock); btrfs_put_block_group(cache); - cache = btrfs_lookup_first_block_group(root->fs_info, - next_bytenr); - return cache; + cache = btrfs_lookup_first_block_group(fs_info, next_bytenr); return cache; } node = rb_next(&cache->cache_node); btrfs_put_block_group(cache); @@ -3334,7 +3344,7 @@ next_block_group(struct btrfs_root *root, btrfs_get_block_group(cache); } else cache = NULL; - spin_unlock(&root->fs_info->block_group_cache_lock); + spin_unlock(&fs_info->block_group_cache_lock); return cache; } @@ -3342,7 +3352,8 @@ static int cache_save_setup(struct btrfs_block_group_cache *block_group, struct btrfs_trans_handle *trans, struct btrfs_path *path) { - struct btrfs_root *root = block_group->fs_info->tree_root; + struct btrfs_fs_info *fs_info = block_group->fs_info; + struct btrfs_root *root = fs_info->tree_root; struct inode *inode = NULL; u64 alloc_hint = 0; int dcs = BTRFS_DC_ERROR; @@ -3416,7 +3427,7 @@ again: if (i_size_read(inode) > 0) { ret = btrfs_check_trunc_cache_free_space(root, - &root->fs_info->global_block_rsv); + &fs_info->global_block_rsv); if (ret) goto out_put; @@ -3427,7 +3438,7 @@ again: spin_lock(&block_group->lock); if (block_group->cached != BTRFS_CACHE_FINISHED || - !btrfs_test_opt(root->fs_info, SPACE_CACHE)) { + !btrfs_test_opt(fs_info, SPACE_CACHE)) { /* * don't bother trying to write stuff out _if_ * a) we're not cached, @@ -3499,12 +3510,13 @@ out: int btrfs_setup_space_cache(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *cache, *tmp; struct btrfs_transaction *cur_trans = trans->transaction; struct btrfs_path *path; if (list_empty(&cur_trans->dirty_bgs) || - !btrfs_test_opt(root->fs_info, SPACE_CACHE)) + !btrfs_test_opt(fs_info, SPACE_CACHE)) return 0; path = btrfs_alloc_path(); @@ -3537,6 +3549,7 @@ int btrfs_setup_space_cache(struct btrfs_trans_handle *trans, int btrfs_start_dirty_block_groups(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *cache; struct btrfs_transaction *cur_trans = trans->transaction; int ret = 0; @@ -3610,7 +3623,7 @@ again: if (cache->disk_cache_state == BTRFS_DC_SETUP) { cache->io_ctl.inode = NULL; - ret = btrfs_write_out_cache(root->fs_info, trans, + ret = btrfs_write_out_cache(fs_info, trans, cache, path); if (ret == 0 && cache->io_ctl.inode) { num_started++; @@ -3698,6 +3711,7 @@ again: int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *cache; struct btrfs_transaction *cur_trans = trans->transaction; int ret = 0; @@ -3761,7 +3775,7 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans, if (!ret && cache->disk_cache_state == BTRFS_DC_SETUP) { cache->io_ctl.inode = NULL; - ret = btrfs_write_out_cache(root->fs_info, trans, + ret = btrfs_write_out_cache(fs_info, trans, cache, path); if (ret == 0 && cache->io_ctl.inode) { num_started++; @@ -3822,10 +3836,11 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans, int btrfs_extent_readonly(struct btrfs_root *root, u64 bytenr) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *block_group; int readonly = 0; - block_group = btrfs_lookup_block_group(root->fs_info, bytenr); + block_group = btrfs_lookup_block_group(fs_info, bytenr); if (!block_group || block_group->ro) readonly = 1; if (block_group) @@ -4030,7 +4045,8 @@ static u64 get_restripe_target(struct btrfs_fs_info *fs_info, u64 flags) */ static u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags) { - u64 num_devices = root->fs_info->fs_devices->rw_devices; + struct btrfs_fs_info *fs_info = root->fs_info; + u64 num_devices = fs_info->fs_devices->rw_devices; u64 target; u64 raid_type; u64 allowed = 0; @@ -4039,16 +4055,16 @@ static u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags) * see if restripe for this chunk_type is in progress, if so * try to reduce to the target profile */ - spin_lock(&root->fs_info->balance_lock); - target = get_restripe_target(root->fs_info, flags); + spin_lock(&fs_info->balance_lock); + target = get_restripe_target(fs_info, flags); if (target) { /* pick target profile only if it's already available */ if ((flags & target) & BTRFS_EXTENDED_PROFILE_MASK) { - spin_unlock(&root->fs_info->balance_lock); + spin_unlock(&fs_info->balance_lock); return extended_to_chunk(target); } } - spin_unlock(&root->fs_info->balance_lock); + spin_unlock(&fs_info->balance_lock); /* First, mask out the RAID levels which aren't possible */ for (raid_type = 0; raid_type < BTRFS_NR_RAID_TYPES; raid_type++) { @@ -4075,32 +4091,34 @@ static u64 btrfs_reduce_alloc_profile(struct btrfs_root *root, u64 flags) static u64 get_alloc_profile(struct btrfs_root *root, u64 orig_flags) { + struct btrfs_fs_info *fs_info = root->fs_info; unsigned seq; u64 flags; do { flags = orig_flags; - seq = read_seqbegin(&root->fs_info->profiles_lock); + seq = read_seqbegin(&fs_info->profiles_lock); if (flags & BTRFS_BLOCK_GROUP_DATA) - flags |= root->fs_info->avail_data_alloc_bits; + flags |= fs_info->avail_data_alloc_bits; else if (flags & BTRFS_BLOCK_GROUP_SYSTEM) - flags |= root->fs_info->avail_system_alloc_bits; + flags |= fs_info->avail_system_alloc_bits; else if (flags & BTRFS_BLOCK_GROUP_METADATA) - flags |= root->fs_info->avail_metadata_alloc_bits; - } while (read_seqretry(&root->fs_info->profiles_lock, seq)); + flags |= fs_info->avail_metadata_alloc_bits; + } while (read_seqretry(&fs_info->profiles_lock, seq)); return btrfs_reduce_alloc_profile(root, flags); } u64 btrfs_get_alloc_profile(struct btrfs_root *root, int data) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 flags; u64 ret; if (data) flags = BTRFS_BLOCK_GROUP_DATA; - else if (root == root->fs_info->chunk_root) + else if (root == fs_info->chunk_root) flags = BTRFS_BLOCK_GROUP_SYSTEM; else flags = BTRFS_BLOCK_GROUP_METADATA; @@ -4120,7 +4138,7 @@ int btrfs_alloc_data_chunk_ondemand(struct inode *inode, u64 bytes) int have_pinned_space; /* make sure bytes are sectorsize aligned */ - bytes = ALIGN(bytes, root->fs_info->sectorsize); + bytes = ALIGN(bytes, fs_info->sectorsize); if (btrfs_is_free_space_inode(inode)) { need_commit = 0; @@ -4166,7 +4184,7 @@ alloc: if (IS_ERR(trans)) return PTR_ERR(trans); - ret = do_chunk_alloc(trans, root->fs_info->extent_root, + ret = do_chunk_alloc(trans, fs_info->extent_root, alloc_target, CHUNK_ALLOC_NO_FORCE); btrfs_end_transaction(trans, root); @@ -4198,12 +4216,13 @@ alloc: /* commit the current transaction and try again */ commit_trans: if (need_commit && - !atomic_read(&root->fs_info->open_ioctl_trans)) { + !atomic_read(&fs_info->open_ioctl_trans)) { need_commit--; if (need_commit > 0) { btrfs_start_delalloc_roots(fs_info, 0, -1); - btrfs_wait_ordered_roots(fs_info, -1, 0, (u64)-1); + btrfs_wait_ordered_roots(fs_info, -1, 0, + (u64)-1); } trans = btrfs_join_transaction(root); @@ -4221,21 +4240,21 @@ commit_trans: * operations. Wait for it to finish so that * more space is released. */ - mutex_lock(&root->fs_info->cleaner_delayed_iput_mutex); - mutex_unlock(&root->fs_info->cleaner_delayed_iput_mutex); + mutex_lock(&fs_info->cleaner_delayed_iput_mutex); + mutex_unlock(&fs_info->cleaner_delayed_iput_mutex); goto again; } else { btrfs_end_transaction(trans, root); } } - trace_btrfs_space_reservation(root->fs_info, + trace_btrfs_space_reservation(fs_info, "space_info:enospc", data_sinfo->flags, bytes, 1); return -ENOSPC; } data_sinfo->bytes_may_use += bytes; - trace_btrfs_space_reservation(root->fs_info, "space_info", + trace_btrfs_space_reservation(fs_info, "space_info", data_sinfo->flags, bytes, 1); spin_unlock(&data_sinfo->lock); @@ -4249,13 +4268,13 @@ commit_trans: */ int btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len) { - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); int ret; /* align the range */ - len = round_up(start + len, root->fs_info->sectorsize) - - round_down(start, root->fs_info->sectorsize); - start = round_down(start, root->fs_info->sectorsize); + len = round_up(start + len, fs_info->sectorsize) - + round_down(start, fs_info->sectorsize); + start = round_down(start, fs_info->sectorsize); ret = btrfs_alloc_data_chunk_ondemand(inode, len); if (ret < 0) @@ -4282,21 +4301,21 @@ int btrfs_check_data_free_space(struct inode *inode, u64 start, u64 len) void btrfs_free_reserved_data_space_noquota(struct inode *inode, u64 start, u64 len) { - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_space_info *data_sinfo; /* Make sure the range is aligned to sectorsize */ - len = round_up(start + len, root->fs_info->sectorsize) - - round_down(start, root->fs_info->sectorsize); - start = round_down(start, root->fs_info->sectorsize); + len = round_up(start + len, fs_info->sectorsize) - + round_down(start, fs_info->sectorsize); + start = round_down(start, fs_info->sectorsize); - data_sinfo = root->fs_info->data_sinfo; + data_sinfo = fs_info->data_sinfo; spin_lock(&data_sinfo->lock); if (WARN_ON(data_sinfo->bytes_may_use < len)) data_sinfo->bytes_may_use = 0; else data_sinfo->bytes_may_use -= len; - trace_btrfs_space_reservation(root->fs_info, "space_info", + trace_btrfs_space_reservation(fs_info, "space_info", data_sinfo->flags, len, 0); spin_unlock(&data_sinfo->lock); } @@ -4335,7 +4354,8 @@ static inline u64 calc_global_rsv_need_space(struct btrfs_block_rsv *global) static int should_alloc_chunk(struct btrfs_root *root, struct btrfs_space_info *sinfo, int force) { - struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv; u64 num_bytes = sinfo->total_bytes - sinfo->bytes_readonly; u64 num_allocated = sinfo->bytes_used + sinfo->bytes_reserved; u64 thresh; @@ -4356,7 +4376,7 @@ static int should_alloc_chunk(struct btrfs_root *root, * about 1% of the FS size. */ if (force == CHUNK_ALLOC_LIMITED) { - thresh = btrfs_super_total_bytes(root->fs_info->super_copy); + thresh = btrfs_super_total_bytes(fs_info->super_copy); thresh = max_t(u64, SZ_64M, div_factor_fine(thresh, 1)); if (num_bytes - num_allocated < thresh) @@ -4370,13 +4390,14 @@ static int should_alloc_chunk(struct btrfs_root *root, static u64 get_profile_num_devs(struct btrfs_root *root, u64 type) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 num_dev; if (type & (BTRFS_BLOCK_GROUP_RAID10 | BTRFS_BLOCK_GROUP_RAID0 | BTRFS_BLOCK_GROUP_RAID5 | BTRFS_BLOCK_GROUP_RAID6)) - num_dev = root->fs_info->fs_devices->rw_devices; + num_dev = fs_info->fs_devices->rw_devices; else if (type & BTRFS_BLOCK_GROUP_RAID1) num_dev = 2; else @@ -4394,6 +4415,7 @@ void check_system_chunk(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 type) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_space_info *info; u64 left; u64 thresh; @@ -4404,9 +4426,9 @@ void check_system_chunk(struct btrfs_trans_handle *trans, * Needed because we can end up allocating a system chunk and for an * atomic and race free space reservation in the chunk block reserve. */ - ASSERT(mutex_is_locked(&root->fs_info->chunk_mutex)); + ASSERT(mutex_is_locked(&fs_info->chunk_mutex)); - info = __find_space_info(root->fs_info, BTRFS_BLOCK_GROUP_SYSTEM); + info = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_SYSTEM); spin_lock(&info->lock); left = info->total_bytes - info->bytes_used - info->bytes_pinned - info->bytes_reserved - info->bytes_readonly - @@ -4416,19 +4438,19 @@ void check_system_chunk(struct btrfs_trans_handle *trans, num_devs = get_profile_num_devs(root, type); /* num_devs device items to update and 1 chunk item to add or remove */ - thresh = btrfs_calc_trunc_metadata_size(root->fs_info, num_devs) + - btrfs_calc_trans_metadata_size(root->fs_info, 1); + thresh = btrfs_calc_trunc_metadata_size(fs_info, num_devs) + + btrfs_calc_trans_metadata_size(fs_info, 1); - if (left < thresh && btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) { - btrfs_info(root->fs_info, "left=%llu, need=%llu, flags=%llu", - left, thresh, type); + if (left < thresh && btrfs_test_opt(fs_info, ENOSPC_DEBUG)) { + btrfs_info(fs_info, "left=%llu, need=%llu, flags=%llu", + left, thresh, type); dump_space_info(info, 0, 0); } if (left < thresh) { u64 flags; - flags = btrfs_get_alloc_profile(root->fs_info->chunk_root, 0); + flags = btrfs_get_alloc_profile(fs_info->chunk_root, 0); /* * Ignore failure to create system chunk. We might end up not * needing it, as we might not need to COW all nodes/leafs from @@ -4439,8 +4461,8 @@ void check_system_chunk(struct btrfs_trans_handle *trans, } if (!ret) { - ret = btrfs_block_rsv_add(root->fs_info->chunk_root, - &root->fs_info->chunk_block_rsv, + ret = btrfs_block_rsv_add(fs_info->chunk_root, + &fs_info->chunk_block_rsv, thresh, BTRFS_RESERVE_NO_FLUSH); if (!ret) trans->chunk_bytes_reserved += thresh; @@ -4459,10 +4481,9 @@ static int do_chunk_alloc(struct btrfs_trans_handle *trans, if (trans->allocating_chunk) return -ENOSPC; - space_info = __find_space_info(extent_root->fs_info, flags); + space_info = __find_space_info(fs_info, flags); if (!space_info) { - ret = update_space_info(extent_root->fs_info, flags, - 0, 0, &space_info); + ret = update_space_info(fs_info, flags, 0, 0, &space_info); BUG_ON(ret); /* -ENOMEM */ } BUG_ON(!space_info); /* Logic error */ @@ -4574,7 +4595,8 @@ static int can_overcommit(struct btrfs_root *root, struct btrfs_space_info *space_info, u64 bytes, enum btrfs_reserve_flush_enum flush) { - struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv; u64 profile = btrfs_get_alloc_profile(root, 0); u64 space_size; u64 avail; @@ -4597,9 +4619,9 @@ static int can_overcommit(struct btrfs_root *root, used += space_info->bytes_may_use; - spin_lock(&root->fs_info->free_chunk_lock); - avail = root->fs_info->free_chunk_space; - spin_unlock(&root->fs_info->free_chunk_lock); + spin_lock(&fs_info->free_chunk_lock); + avail = fs_info->free_chunk_space; + spin_unlock(&fs_info->free_chunk_lock); /* * If we have dup, raid1 or raid10 then only half of the free @@ -4630,7 +4652,8 @@ static int can_overcommit(struct btrfs_root *root, static void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root, unsigned long nr_pages, int nr_items) { - struct super_block *sb = root->fs_info->sb; + struct btrfs_fs_info *fs_info = root->fs_info; + struct super_block *sb = fs_info->sb; if (down_read_trylock(&sb->s_umount)) { writeback_inodes_sb_nr(sb, nr_pages, WB_REASON_FS_FREE_SPACE); @@ -4643,10 +4666,9 @@ static void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root, * the filesystem is readonly(all dirty pages are written to * the disk). */ - btrfs_start_delalloc_roots(root->fs_info, 0, nr_items); + btrfs_start_delalloc_roots(fs_info, 0, nr_items); if (!current->journal_info) - btrfs_wait_ordered_roots(root->fs_info, nr_items, - 0, (u64)-1); + btrfs_wait_ordered_roots(fs_info, nr_items, 0, (u64)-1); } } @@ -4670,6 +4692,7 @@ static inline int calc_reclaim_items_nr(struct btrfs_root *root, u64 to_reclaim) static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig, bool wait_ordered) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *block_rsv; struct btrfs_space_info *space_info; struct btrfs_trans_handle *trans; @@ -4686,17 +4709,16 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig, to_reclaim = (u64)items * EXTENT_SIZE_PER_ITEM; trans = (struct btrfs_trans_handle *)current->journal_info; - block_rsv = &root->fs_info->delalloc_block_rsv; + block_rsv = &fs_info->delalloc_block_rsv; space_info = block_rsv->space_info; delalloc_bytes = percpu_counter_sum_positive( - &root->fs_info->delalloc_bytes); + &fs_info->delalloc_bytes); if (delalloc_bytes == 0) { if (trans) return; if (wait_ordered) - btrfs_wait_ordered_roots(root->fs_info, items, - 0, (u64)-1); + btrfs_wait_ordered_roots(fs_info, items, 0, (u64)-1); return; } @@ -4709,7 +4731,7 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig, * We need to wait for the async pages to actually start before * we do anything. */ - max_reclaim = atomic_read(&root->fs_info->async_delalloc_pages); + max_reclaim = atomic_read(&fs_info->async_delalloc_pages); if (!max_reclaim) goto skip_async; @@ -4718,8 +4740,8 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig, else max_reclaim -= nr_pages; - wait_event(root->fs_info->async_submit_wait, - atomic_read(&root->fs_info->async_delalloc_pages) <= + wait_event(fs_info->async_submit_wait, + atomic_read(&fs_info->async_delalloc_pages) <= (int)max_reclaim); skip_async: if (!trans) @@ -4735,15 +4757,14 @@ skip_async: loops++; if (wait_ordered && !trans) { - btrfs_wait_ordered_roots(root->fs_info, items, - 0, (u64)-1); + btrfs_wait_ordered_roots(fs_info, items, 0, (u64)-1); } else { time_left = schedule_timeout_killable(1); if (time_left) break; } delalloc_bytes = percpu_counter_sum_positive( - &root->fs_info->delalloc_bytes); + &fs_info->delalloc_bytes); } } @@ -4761,7 +4782,8 @@ static int may_commit_transaction(struct btrfs_root *root, struct btrfs_space_info *space_info, u64 bytes, int force) { - struct btrfs_block_rsv *delayed_rsv = &root->fs_info->delayed_block_rsv; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_block_rsv *delayed_rsv = &fs_info->delayed_block_rsv; struct btrfs_trans_handle *trans; trans = (struct btrfs_trans_handle *)current->journal_info; @@ -4812,6 +4834,7 @@ static int flush_space(struct btrfs_root *root, struct btrfs_space_info *space_info, u64 num_bytes, u64 orig_bytes, int state) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_trans_handle *trans; int nr; int ret = 0; @@ -4843,7 +4866,7 @@ static int flush_space(struct btrfs_root *root, ret = PTR_ERR(trans); break; } - ret = do_chunk_alloc(trans, root->fs_info->extent_root, + ret = do_chunk_alloc(trans, fs_info->extent_root, btrfs_get_alloc_profile(root, 0), CHUNK_ALLOC_NO_FORCE); btrfs_end_transaction(trans, root); @@ -4988,6 +5011,7 @@ static int reserve_metadata_bytes(struct btrfs_root *root, u64 orig_bytes, enum btrfs_reserve_flush_enum flush) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_space_info *space_info = block_rsv->space_info; u64 used; u64 num_bytes = orig_bytes; @@ -5036,8 +5060,10 @@ again: if (used <= space_info->total_bytes) { if (used + orig_bytes <= space_info->total_bytes) { space_info->bytes_may_use += orig_bytes; - trace_btrfs_space_reservation(root->fs_info, - "space_info", space_info->flags, orig_bytes, 1); + trace_btrfs_space_reservation(fs_info, + "space_info", + space_info->flags, + orig_bytes, 1); ret = 0; } else { /* @@ -5059,7 +5085,7 @@ again: if (ret && can_overcommit(root, space_info, orig_bytes, flush)) { space_info->bytes_may_use += orig_bytes; - trace_btrfs_space_reservation(root->fs_info, "space_info", + trace_btrfs_space_reservation(fs_info, "space_info", space_info->flags, orig_bytes, 1); ret = 0; @@ -5083,11 +5109,11 @@ again: * which means we won't have fs_info->fs_root set, so don't do * the async reclaim as we will panic. */ - if (!root->fs_info->log_root_recovering && - need_do_async_reclaim(space_info, root->fs_info, used) && - !work_busy(&root->fs_info->async_reclaim_work)) + if (!fs_info->log_root_recovering && + need_do_async_reclaim(space_info, fs_info, used) && + !work_busy(&fs_info->async_reclaim_work)) queue_work(system_unbound_wq, - &root->fs_info->async_reclaim_work); + &fs_info->async_reclaim_work); } spin_unlock(&space_info->lock); @@ -5120,14 +5146,14 @@ out: if (ret == -ENOSPC && unlikely(root->orphan_cleanup_state == ORPHAN_CLEANUP_STARTED)) { struct btrfs_block_rsv *global_rsv = - &root->fs_info->global_block_rsv; + &fs_info->global_block_rsv; if (block_rsv != global_rsv && !block_rsv_use_bytes(global_rsv, orig_bytes)) ret = 0; } if (ret == -ENOSPC) - trace_btrfs_space_reservation(root->fs_info, + trace_btrfs_space_reservation(fs_info, "space_info:enospc", space_info->flags, orig_bytes, 1); if (flushing) { @@ -5143,18 +5169,19 @@ static struct btrfs_block_rsv *get_block_rsv( const struct btrfs_trans_handle *trans, const struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *block_rsv = NULL; if (test_bit(BTRFS_ROOT_REF_COWS, &root->state) || - (root == root->fs_info->csum_root && trans->adding_csums) || - (root == root->fs_info->uuid_root)) + (root == fs_info->csum_root && trans->adding_csums) || + (root == fs_info->uuid_root)) block_rsv = trans->block_rsv; if (!block_rsv) block_rsv = root->block_rsv; if (!block_rsv) - block_rsv = &root->fs_info->empty_block_rsv; + block_rsv = &fs_info->empty_block_rsv; return block_rsv; } @@ -5382,12 +5409,13 @@ void btrfs_block_rsv_release(struct btrfs_root *root, struct btrfs_block_rsv *block_rsv, u64 num_bytes) { - struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv; + if (global_rsv == block_rsv || block_rsv->space_info != global_rsv->space_info) global_rsv = NULL; - block_rsv_release_bytes(root->fs_info, block_rsv, global_rsv, - num_bytes); + block_rsv_release_bytes(fs_info, block_rsv, global_rsv, num_bytes); } /* @@ -5512,13 +5540,15 @@ static void release_global_block_rsv(struct btrfs_fs_info *fs_info) void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; + if (!trans->block_rsv) return; if (!trans->bytes_reserved) return; - trace_btrfs_space_reservation(root->fs_info, "transaction", + trace_btrfs_space_reservation(fs_info, "transaction", trans->transid, trans->bytes_reserved, 0); btrfs_block_rsv_release(root, trans->block_rsv, trans->bytes_reserved); trans->bytes_reserved = 0; @@ -5546,6 +5576,7 @@ void btrfs_trans_release_chunk_metadata(struct btrfs_trans_handle *trans) int btrfs_orphan_reserve_metadata(struct btrfs_trans_handle *trans, struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_block_rsv *src_rsv = get_block_rsv(trans, root); struct btrfs_block_rsv *dst_rsv = root->orphan_block_rsv; @@ -5555,17 +5586,18 @@ int btrfs_orphan_reserve_metadata(struct btrfs_trans_handle *trans, * added it, so this takes the reservation so we can release it later * when we are truly done with the orphan item. */ - u64 num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1); - trace_btrfs_space_reservation(root->fs_info, "orphan", + u64 num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); + trace_btrfs_space_reservation(fs_info, "orphan", btrfs_ino(inode), num_bytes, 1); return block_rsv_migrate_bytes(src_rsv, dst_rsv, num_bytes); } void btrfs_orphan_release_metadata(struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; - u64 num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, 1); - trace_btrfs_space_reservation(root->fs_info, "orphan", + u64 num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1); + trace_btrfs_space_reservation(fs_info, "orphan", btrfs_ino(inode), num_bytes, 0); btrfs_block_rsv_release(root, root->orphan_block_rsv, num_bytes); } @@ -5592,11 +5624,12 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root, { u64 num_bytes; int ret; - struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv; - if (root->fs_info->quota_enabled) { + if (fs_info->quota_enabled) { /* One for parent inode, two for dir entries */ - num_bytes = 3 * root->fs_info->nodesize; + num_bytes = 3 * fs_info->nodesize; ret = btrfs_qgroup_reserve_meta(root, num_bytes); if (ret) return ret; @@ -5606,8 +5639,8 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root, *qgroup_reserved = num_bytes; - num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, items); - rsv->space_info = __find_space_info(root->fs_info, + num_bytes = btrfs_calc_trans_metadata_size(fs_info, items); + rsv->space_info = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA); ret = btrfs_block_rsv_add(root, rsv, num_bytes, BTRFS_RESERVE_FLUSH_ALL); @@ -5691,6 +5724,7 @@ static unsigned drop_outstanding_extent(struct inode *inode, u64 num_bytes) static u64 calc_csum_metadata_size(struct inode *inode, u64 num_bytes, int reserve) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; u64 old_csums, num_csums; @@ -5710,17 +5744,17 @@ static u64 calc_csum_metadata_size(struct inode *inode, u64 num_bytes, return 0; if (reserve) - return btrfs_calc_trans_metadata_size(root->fs_info, + return btrfs_calc_trans_metadata_size(fs_info, num_csums - old_csums); - return btrfs_calc_trans_metadata_size(root->fs_info, - old_csums - num_csums); + return btrfs_calc_trans_metadata_size(fs_info, old_csums - num_csums); } int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; - struct btrfs_block_rsv *block_rsv = &root->fs_info->delalloc_block_rsv; + struct btrfs_block_rsv *block_rsv = &fs_info->delalloc_block_rsv; u64 to_reserve = 0; u64 csum_bytes; unsigned nr_extents = 0; @@ -5742,13 +5776,13 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) } if (flush != BTRFS_RESERVE_NO_FLUSH && - btrfs_transaction_in_commit(root->fs_info)) + btrfs_transaction_in_commit(fs_info)) schedule_timeout(1); if (delalloc_lock) mutex_lock(&BTRFS_I(inode)->delalloc_mutex); - num_bytes = ALIGN(num_bytes, root->fs_info->sectorsize); + num_bytes = ALIGN(num_bytes, fs_info->sectorsize); spin_lock(&BTRFS_I(inode)->lock); nr_extents = (unsigned)div64_u64(num_bytes + @@ -5772,14 +5806,14 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) extra_reserve = 1; } - to_reserve = btrfs_calc_trans_metadata_size(root->fs_info, nr_extents); + to_reserve = btrfs_calc_trans_metadata_size(fs_info, nr_extents); to_reserve += calc_csum_metadata_size(inode, num_bytes, 1); csum_bytes = BTRFS_I(inode)->csum_bytes; spin_unlock(&BTRFS_I(inode)->lock); - if (root->fs_info->quota_enabled) { + if (fs_info->quota_enabled) { ret = btrfs_qgroup_reserve_meta(root, - nr_extents * root->fs_info->nodesize); + nr_extents * fs_info->nodesize); if (ret) goto out_fail; } @@ -5787,7 +5821,7 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) ret = reserve_metadata_bytes(root, block_rsv, to_reserve, flush); if (unlikely(ret)) { btrfs_qgroup_free_meta(root, - nr_extents * root->fs_info->nodesize); + nr_extents * fs_info->nodesize); goto out_fail; } @@ -5804,7 +5838,7 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes) mutex_unlock(&BTRFS_I(inode)->delalloc_mutex); if (to_reserve) - trace_btrfs_space_reservation(root->fs_info, "delalloc", + trace_btrfs_space_reservation(fs_info, "delalloc", btrfs_ino(inode), to_reserve, 1); block_rsv_add_bytes(block_rsv, to_reserve, 1); @@ -5862,12 +5896,11 @@ out_fail: } spin_unlock(&BTRFS_I(inode)->lock); if (dropped) - to_free += btrfs_calc_trans_metadata_size(root->fs_info, - dropped); + to_free += btrfs_calc_trans_metadata_size(fs_info, dropped); if (to_free) { btrfs_block_rsv_release(root, block_rsv, to_free); - trace_btrfs_space_reservation(root->fs_info, "delalloc", + trace_btrfs_space_reservation(fs_info, "delalloc", btrfs_ino(inode), to_free, 0); } if (delalloc_lock) @@ -5886,11 +5919,12 @@ out_fail: */ void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; u64 to_free = 0; unsigned dropped; - num_bytes = ALIGN(num_bytes, root->fs_info->sectorsize); + num_bytes = ALIGN(num_bytes, fs_info->sectorsize); spin_lock(&BTRFS_I(inode)->lock); dropped = drop_outstanding_extent(inode, num_bytes); @@ -5898,17 +5932,15 @@ void btrfs_delalloc_release_metadata(struct inode *inode, u64 num_bytes) to_free = calc_csum_metadata_size(inode, num_bytes, 0); spin_unlock(&BTRFS_I(inode)->lock); if (dropped > 0) - to_free += btrfs_calc_trans_metadata_size(root->fs_info, - dropped); + to_free += btrfs_calc_trans_metadata_size(fs_info, dropped); - if (btrfs_is_testing(root->fs_info)) + if (btrfs_is_testing(fs_info)) return; - trace_btrfs_space_reservation(root->fs_info, "delalloc", + trace_btrfs_space_reservation(fs_info, "delalloc", btrfs_ino(inode), to_free, 0); - btrfs_block_rsv_release(root, &root->fs_info->delalloc_block_rsv, - to_free); + btrfs_block_rsv_release(root, &fs_info->delalloc_block_rsv, to_free); } /** @@ -6079,17 +6111,18 @@ static int update_block_group(struct btrfs_trans_handle *trans, static u64 first_logical_byte(struct btrfs_root *root, u64 search_start) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *cache; u64 bytenr; - spin_lock(&root->fs_info->block_group_cache_lock); - bytenr = root->fs_info->first_logical_byte; - spin_unlock(&root->fs_info->block_group_cache_lock); + spin_lock(&fs_info->block_group_cache_lock); + bytenr = fs_info->first_logical_byte; + spin_unlock(&fs_info->block_group_cache_lock); if (bytenr < (u64)-1) return bytenr; - cache = btrfs_lookup_first_block_group(root->fs_info, search_start); + cache = btrfs_lookup_first_block_group(fs_info, search_start); if (!cache) return 0; @@ -6103,6 +6136,8 @@ static int pin_down_extent(struct btrfs_root *root, struct btrfs_block_group_cache *cache, u64 bytenr, u64 num_bytes, int reserved) { + struct btrfs_fs_info *fs_info = cache->fs_info; + spin_lock(&cache->space_info->lock); spin_lock(&cache->lock); cache->pinned += num_bytes; @@ -6114,7 +6149,7 @@ static int pin_down_extent(struct btrfs_root *root, spin_unlock(&cache->lock); spin_unlock(&cache->space_info->lock); - set_extent_dirty(root->fs_info->pinned_extents, bytenr, + set_extent_dirty(fs_info->pinned_extents, bytenr, bytenr + num_bytes - 1, GFP_NOFS | __GFP_NOFAIL); if (reserved) trace_btrfs_reserved_extent_free(root, bytenr, num_bytes); @@ -6127,9 +6162,10 @@ static int pin_down_extent(struct btrfs_root *root, int btrfs_pin_extent(struct btrfs_root *root, u64 bytenr, u64 num_bytes, int reserved) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *cache; - cache = btrfs_lookup_block_group(root->fs_info, bytenr); + cache = btrfs_lookup_block_group(fs_info, bytenr); BUG_ON(!cache); /* Logic error */ pin_down_extent(root, cache, bytenr, num_bytes, reserved); @@ -6144,10 +6180,11 @@ int btrfs_pin_extent(struct btrfs_root *root, int btrfs_pin_extent_for_log_replay(struct btrfs_root *root, u64 bytenr, u64 num_bytes) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *cache; int ret; - cache = btrfs_lookup_block_group(root->fs_info, bytenr); + cache = btrfs_lookup_block_group(fs_info, bytenr); if (!cache) return -EINVAL; @@ -6169,11 +6206,12 @@ int btrfs_pin_extent_for_log_replay(struct btrfs_root *root, static int __exclude_logged_extent(struct btrfs_root *root, u64 start, u64 num_bytes) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; struct btrfs_block_group_cache *block_group; struct btrfs_caching_control *caching_ctl; - block_group = btrfs_lookup_block_group(root->fs_info, start); + block_group = btrfs_lookup_block_group(fs_info, start); if (!block_group) return -EINVAL; @@ -6393,8 +6431,9 @@ static struct btrfs_free_cluster * fetch_cluster_info(struct btrfs_root *root, struct btrfs_space_info *space_info, u64 *empty_cluster) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_free_cluster *ret = NULL; - bool ssd = btrfs_test_opt(root->fs_info, SSD); + bool ssd = btrfs_test_opt(fs_info, SSD); *empty_cluster = 0; if (btrfs_mixed_space_info(space_info)) @@ -6403,11 +6442,11 @@ fetch_cluster_info(struct btrfs_root *root, struct btrfs_space_info *space_info, if (ssd) *empty_cluster = SZ_2M; if (space_info->flags & BTRFS_BLOCK_GROUP_METADATA) { - ret = &root->fs_info->meta_alloc_cluster; + ret = &fs_info->meta_alloc_cluster; if (!ssd) *empty_cluster = SZ_64K; } else if ((space_info->flags & BTRFS_BLOCK_GROUP_DATA) && ssd) { - ret = &root->fs_info->data_alloc_cluster; + ret = &fs_info->data_alloc_cluster; } return ret; @@ -6524,7 +6563,7 @@ int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans, break; } - if (btrfs_test_opt(root->fs_info, DISCARD)) + if (btrfs_test_opt(fs_info, DISCARD)) ret = btrfs_discard_extent(root, start, end + 1 - start, NULL); @@ -6610,8 +6649,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, u64 bytenr = node->bytenr; u64 num_bytes = node->num_bytes; int last_ref = 0; - bool skinny_metadata = btrfs_fs_incompat(root->fs_info, - SKINNY_METADATA); + bool skinny_metadata = btrfs_fs_incompat(info, SKINNY_METADATA); path = btrfs_alloc_path(); if (!path) @@ -6808,7 +6846,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, goto out; } } - add_pinned_bytes(root->fs_info, -num_bytes, owner_objectid, + add_pinned_bytes(info, -num_bytes, owner_objectid, root_objectid); } else { if (found_extent) { @@ -6840,15 +6878,13 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans, } } - ret = add_to_free_space_tree(trans, root->fs_info, bytenr, - num_bytes); + ret = add_to_free_space_tree(trans, info, bytenr, num_bytes); if (ret) { btrfs_abort_transaction(trans, ret); goto out; } - ret = update_block_group(trans, root->fs_info, bytenr, - num_bytes, 0); + ret = update_block_group(trans, info, bytenr, num_bytes, 0); if (ret) { btrfs_abort_transaction(trans, ret); goto out; @@ -6938,15 +6974,17 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans, struct extent_buffer *buf, u64 parent, int last_ref) { + struct btrfs_fs_info *fs_info = root->fs_info; int pin = 1; int ret; if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) { - ret = btrfs_add_delayed_tree_ref(root->fs_info, trans, - buf->start, buf->len, - parent, root->root_key.objectid, - btrfs_header_level(buf), - BTRFS_DROP_DELAYED_REF, NULL); + ret = btrfs_add_delayed_tree_ref(fs_info, trans, + buf->start, buf->len, + parent, + root->root_key.objectid, + btrfs_header_level(buf), + BTRFS_DROP_DELAYED_REF, NULL); BUG_ON(ret); /* -ENOMEM */ } @@ -6962,7 +7000,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans, goto out; } - cache = btrfs_lookup_block_group(root->fs_info, buf->start); + cache = btrfs_lookup_block_group(fs_info, buf->start); if (btrfs_header_flag(buf, BTRFS_HEADER_FLAG_WRITTEN)) { pin_down_extent(root, cache, buf->start, buf->len, 1); @@ -6980,8 +7018,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans, } out: if (pin) - add_pinned_bytes(root->fs_info, buf->len, - btrfs_header_level(buf), + add_pinned_bytes(fs_info, buf->len, btrfs_header_level(buf), root->root_key.objectid); /* @@ -7002,7 +7039,7 @@ int btrfs_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, if (btrfs_is_testing(fs_info)) return 0; - add_pinned_bytes(root->fs_info, num_bytes, owner, root_objectid); + add_pinned_bytes(fs_info, num_bytes, owner, root_objectid); /* * tree log blocks never actually go into the extent allocation @@ -7202,8 +7239,9 @@ static noinline int find_free_extent(struct btrfs_root *orig_root, u64 hint_byte, struct btrfs_key *ins, u64 flags, int delalloc) { + struct btrfs_fs_info *fs_info = orig_root->fs_info; int ret = 0; - struct btrfs_root *root = orig_root->fs_info->extent_root; + struct btrfs_root *root = fs_info->extent_root; struct btrfs_free_cluster *last_ptr = NULL; struct btrfs_block_group_cache *block_group = NULL; u64 search_start = 0; @@ -7221,16 +7259,16 @@ static noinline int find_free_extent(struct btrfs_root *orig_root, bool orig_have_caching_bg = false; bool full_search = false; - WARN_ON(num_bytes < root->fs_info->sectorsize); + WARN_ON(num_bytes < fs_info->sectorsize); ins->type = BTRFS_EXTENT_ITEM_KEY; ins->objectid = 0; ins->offset = 0; trace_find_free_extent(orig_root, num_bytes, empty_size, flags); - space_info = __find_space_info(root->fs_info, flags); + space_info = __find_space_info(fs_info, flags); if (!space_info) { - btrfs_err(root->fs_info, "No space info for %llu", flags); + btrfs_err(fs_info, "No space info for %llu", flags); return -ENOSPC; } @@ -7277,8 +7315,7 @@ static noinline int find_free_extent(struct btrfs_root *orig_root, search_start = max(search_start, first_logical_byte(root, 0)); search_start = max(search_start, hint_byte); if (search_start == hint_byte) { - block_group = btrfs_lookup_block_group(root->fs_info, - search_start); + block_group = btrfs_lookup_block_group(fs_info, search_start); /* * we don't want to use the block group if it doesn't match our * allocation bits, or if its not cached. @@ -7531,7 +7568,7 @@ unclustered_alloc: goto loop; } checks: - search_start = ALIGN(offset, root->fs_info->stripesize); + search_start = ALIGN(offset, fs_info->stripesize); /* move on to the next group */ if (search_start + num_bytes > @@ -7723,33 +7760,34 @@ int btrfs_reserve_extent(struct btrfs_root *root, u64 empty_size, u64 hint_byte, struct btrfs_key *ins, int is_data, int delalloc) { + struct btrfs_fs_info *fs_info = root->fs_info; bool final_tried = num_bytes == min_alloc_size; u64 flags; int ret; flags = btrfs_get_alloc_profile(root, is_data); again: - WARN_ON(num_bytes < root->fs_info->sectorsize); + WARN_ON(num_bytes < fs_info->sectorsize); ret = find_free_extent(root, num_bytes, empty_size, hint_byte, ins, flags, delalloc); if (!ret && !is_data) { - btrfs_dec_block_group_reservations(root->fs_info, - ins->objectid); + btrfs_dec_block_group_reservations(fs_info, ins->objectid); } else if (ret == -ENOSPC) { if (!final_tried && ins->offset) { num_bytes = min(num_bytes >> 1, ins->offset); num_bytes = round_down(num_bytes, - root->fs_info->sectorsize); + fs_info->sectorsize); num_bytes = max(num_bytes, min_alloc_size); if (num_bytes == min_alloc_size) final_tried = true; goto again; - } else if (btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) { + } else if (btrfs_test_opt(fs_info, ENOSPC_DEBUG)) { struct btrfs_space_info *sinfo; - sinfo = __find_space_info(root->fs_info, flags); - btrfs_err(root->fs_info, "allocation failed flags %llu, wanted %llu", - flags, num_bytes); + sinfo = __find_space_info(fs_info, flags); + btrfs_err(fs_info, + "allocation failed flags %llu, wanted %llu", + flags, num_bytes); if (sinfo) dump_space_info(sinfo, num_bytes, 1); } @@ -7762,20 +7800,21 @@ static int __btrfs_free_reserved_extent(struct btrfs_root *root, u64 start, u64 len, int pin, int delalloc) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *cache; int ret = 0; - cache = btrfs_lookup_block_group(root->fs_info, start); + cache = btrfs_lookup_block_group(fs_info, start); if (!cache) { - btrfs_err(root->fs_info, "Unable to find block group for %llu", - start); + btrfs_err(fs_info, "Unable to find block group for %llu", + start); return -ENOSPC; } if (pin) pin_down_extent(root, cache, start, len, 1); else { - if (btrfs_test_opt(root->fs_info, DISCARD)) + if (btrfs_test_opt(fs_info, DISCARD)) ret = btrfs_discard_extent(root, start, len, NULL); btrfs_add_free_space(cache, start, len); btrfs_update_reserved_bytes(cache, len, RESERVE_FREE, delalloc); @@ -7892,8 +7931,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans, struct extent_buffer *leaf; u32 size = sizeof(*extent_item) + sizeof(*iref); u64 num_bytes = ins->offset; - bool skinny_metadata = btrfs_fs_incompat(root->fs_info, - SKINNY_METADATA); + bool skinny_metadata = btrfs_fs_incompat(fs_info, SKINNY_METADATA); if (!skinny_metadata) size += sizeof(*block_info); @@ -7901,7 +7939,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans, path = btrfs_alloc_path(); if (!path) { btrfs_free_and_pin_reserved_extent(root, ins->objectid, - root->fs_info->nodesize); + fs_info->nodesize); return -ENOMEM; } @@ -7911,7 +7949,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans, if (ret) { btrfs_free_path(path); btrfs_free_and_pin_reserved_extent(root, ins->objectid, - root->fs_info->nodesize); + fs_info->nodesize); return ret; } @@ -7925,7 +7963,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans, if (skinny_metadata) { iref = (struct btrfs_extent_inline_ref *)(extent_item + 1); - num_bytes = root->fs_info->nodesize; + num_bytes = fs_info->nodesize; } else { block_info = (struct btrfs_tree_block_info *)(extent_item + 1); btrfs_set_tree_block_key(leaf, block_info, key); @@ -7961,7 +7999,7 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans, } trace_btrfs_reserved_extent_alloc(root, ins->objectid, - root->fs_info->nodesize); + fs_info->nodesize); return ret; } @@ -7971,11 +8009,12 @@ int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans, u64 offset, u64 ram_bytes, struct btrfs_key *ins) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; BUG_ON(root_objectid == BTRFS_TREE_LOG_OBJECTID); - ret = btrfs_add_delayed_data_ref(root->fs_info, trans, ins->objectid, + ret = btrfs_add_delayed_data_ref(fs_info, trans, ins->objectid, ins->offset, 0, root_objectid, owner, offset, ram_bytes, BTRFS_ADD_DELAYED_EXTENT, @@ -7993,6 +8032,7 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans, u64 root_objectid, u64 owner, u64 offset, struct btrfs_key *ins) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; struct btrfs_block_group_cache *block_group; @@ -8000,13 +8040,13 @@ int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans, * Mixed block groups will exclude before processing the log so we only * need to do the exclude dance if this fs isn't mixed. */ - if (!btrfs_fs_incompat(root->fs_info, MIXED_GROUPS)) { + if (!btrfs_fs_incompat(fs_info, MIXED_GROUPS)) { ret = __exclude_logged_extent(root, ins->objectid, ins->offset); if (ret) return ret; } - block_group = btrfs_lookup_block_group(root->fs_info, ins->objectid); + block_group = btrfs_lookup_block_group(fs_info, ins->objectid); if (!block_group) return -EINVAL; @@ -8023,6 +8063,7 @@ static struct extent_buffer * btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 bytenr, int level) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *buf; buf = btrfs_find_create_tree_block(root, bytenr); @@ -8032,7 +8073,7 @@ btrfs_init_new_buffer(struct btrfs_trans_handle *trans, struct btrfs_root *root, btrfs_set_header_generation(buf, trans->transid); btrfs_set_buffer_lockdep_class(root->root_key.objectid, buf, level); btrfs_tree_lock(buf); - clean_tree_block(trans, root->fs_info, buf); + clean_tree_block(trans, fs_info, buf); clear_bit(EXTENT_BUFFER_STALE, &buf->bflags); btrfs_set_lock_blocking(buf); @@ -8064,8 +8105,9 @@ static struct btrfs_block_rsv * use_block_rsv(struct btrfs_trans_handle *trans, struct btrfs_root *root, u32 blocksize) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *block_rsv; - struct btrfs_block_rsv *global_rsv = &root->fs_info->global_block_rsv; + struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv; int ret; bool global_updated = false; @@ -8083,11 +8125,11 @@ again: if (block_rsv->type == BTRFS_BLOCK_RSV_GLOBAL && !global_updated) { global_updated = true; - update_global_block_rsv(root->fs_info); + update_global_block_rsv(fs_info); goto again; } - if (btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) { + if (btrfs_test_opt(fs_info, ENOSPC_DEBUG)) { static DEFINE_RATELIMIT_STATE(_rs, DEFAULT_RATELIMIT_INTERVAL * 10, /*DEFAULT_RATELIMIT_BURST*/ 1); @@ -8131,17 +8173,17 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans, struct btrfs_disk_key *key, int level, u64 hint, u64 empty_size) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_key ins; struct btrfs_block_rsv *block_rsv; struct extent_buffer *buf; struct btrfs_delayed_extent_op *extent_op; u64 flags = 0; int ret; - u32 blocksize = root->fs_info->nodesize; - bool skinny_metadata = btrfs_fs_incompat(root->fs_info, - SKINNY_METADATA); + u32 blocksize = fs_info->nodesize; + bool skinny_metadata = btrfs_fs_incompat(fs_info, SKINNY_METADATA); - if (btrfs_is_testing(root->fs_info)) { + if (btrfs_is_testing(fs_info)) { buf = btrfs_init_new_buffer(trans, root, root->alloc_bytenr, level); if (!IS_ERR(buf)) @@ -8187,7 +8229,7 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans, extent_op->is_data = false; extent_op->level = level; - ret = btrfs_add_delayed_tree_ref(root->fs_info, trans, + ret = btrfs_add_delayed_tree_ref(fs_info, trans, ins.objectid, ins.offset, parent, root_objectid, level, BTRFS_ADD_DELAYED_EXTENT, @@ -8204,7 +8246,7 @@ out_free_buf: out_free_reserved: btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 0); out_unuse: - unuse_block_rsv(root->fs_info, block_rsv, blocksize); + unuse_block_rsv(fs_info, block_rsv, blocksize); return ERR_PTR(ret); } @@ -8230,6 +8272,7 @@ static noinline void reada_walk_down(struct btrfs_trans_handle *trans, struct walk_control *wc, struct btrfs_path *path) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 bytenr; u64 generation; u64 refs; @@ -8248,12 +8291,12 @@ static noinline void reada_walk_down(struct btrfs_trans_handle *trans, } else { wc->reada_count = wc->reada_count * 3 / 2; wc->reada_count = min_t(int, wc->reada_count, - BTRFS_NODEPTRS_PER_BLOCK(root->fs_info)); + BTRFS_NODEPTRS_PER_BLOCK(fs_info)); } eb = path->nodes[wc->level]; nritems = btrfs_header_nritems(eb); - blocksize = root->fs_info->nodesize; + blocksize = fs_info->nodesize; for (slot = path->slots[wc->level]; slot < nritems; slot++) { if (nread >= wc->reada_count) @@ -8314,6 +8357,7 @@ static int record_one_subtree_extent(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 bytenr, u64 num_bytes) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_qgroup_extent_record *qrecord; struct btrfs_delayed_ref_root *delayed_refs; @@ -8327,8 +8371,7 @@ static int record_one_subtree_extent(struct btrfs_trans_handle *trans, delayed_refs = &trans->transaction->delayed_refs; spin_lock(&delayed_refs->lock); - if (btrfs_qgroup_insert_dirty_extent(trans->fs_info, - delayed_refs, qrecord)) + if (btrfs_qgroup_insert_dirty_extent(fs_info, delayed_refs, qrecord)) kfree(qrecord); spin_unlock(&delayed_refs->lock); @@ -8339,6 +8382,7 @@ static int account_leaf_items(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *eb) { + struct btrfs_fs_info *fs_info = root->fs_info; int nr = btrfs_header_nritems(eb); int i, extent_type, ret; struct btrfs_key key; @@ -8346,7 +8390,7 @@ static int account_leaf_items(struct btrfs_trans_handle *trans, u64 bytenr, num_bytes; /* We can be called directly from walk_up_proc() */ - if (!root->fs_info->quota_enabled) + if (!fs_info->quota_enabled) return 0; for (i = 0; i < nr; i++) { @@ -8446,6 +8490,7 @@ static int account_shared_subtree(struct btrfs_trans_handle *trans, u64 root_gen, int root_level) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret = 0; int level; struct extent_buffer *eb = root_eb; @@ -8454,7 +8499,7 @@ static int account_shared_subtree(struct btrfs_trans_handle *trans, BUG_ON(root_level < 0 || root_level > BTRFS_MAX_LEVEL); BUG_ON(root_eb == NULL); - if (!root->fs_info->quota_enabled) + if (!fs_info->quota_enabled) return 0; if (!extent_buffer_uptodate(root_eb)) { @@ -8518,7 +8563,7 @@ walk_down: path->locks[level] = BTRFS_READ_LOCK_BLOCKING; ret = record_one_subtree_extent(trans, root, child_bytenr, - root->fs_info->nodesize); + fs_info->nodesize); if (ret) goto out; } @@ -8641,6 +8686,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans, struct btrfs_path *path, struct walk_control *wc, int *lookup_info) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 bytenr; u64 generation; u64 parent; @@ -8666,9 +8712,9 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans, } bytenr = btrfs_node_blockptr(path->nodes[level], path->slots[level]); - blocksize = root->fs_info->nodesize; + blocksize = fs_info->nodesize; - next = btrfs_find_tree_block(root->fs_info, bytenr); + next = btrfs_find_tree_block(fs_info, bytenr); if (!next) { next = btrfs_find_create_tree_block(root, bytenr); if (IS_ERR(next)) @@ -8690,7 +8736,7 @@ static noinline int do_walk_down(struct btrfs_trans_handle *trans, } if (unlikely(wc->refs[level - 1] == 0)) { - btrfs_err(root->fs_info, "Missing references."); + btrfs_err(fs_info, "Missing references."); BUG(); } *lookup_info = 0; @@ -8767,11 +8813,11 @@ skip: ret = account_shared_subtree(trans, root, next, generation, level - 1); if (ret) { - btrfs_err_rl(root->fs_info, - "Error " - "%d accounting shared subtree. Quota " - "is out of sync, rescan required.", - ret); + btrfs_err_rl(fs_info, + "Error " + "%d accounting shared subtree. Quota " + "is out of sync, rescan required.", + ret); } } ret = btrfs_free_extent(trans, root, bytenr, blocksize, parent, @@ -8801,6 +8847,7 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans, struct btrfs_path *path, struct walk_control *wc) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; int level = wc->level; struct extent_buffer *eb = path->nodes[level]; @@ -8860,11 +8907,11 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans, BUG_ON(ret); /* -ENOMEM */ ret = account_leaf_items(trans, root, eb); if (ret) { - btrfs_err_rl(root->fs_info, - "error " - "%d accounting leaf items. Quota " - "is out of sync, rescan required.", - ret); + btrfs_err_rl(fs_info, + "error " + "%d accounting leaf items. Quota " + "is out of sync, rescan required.", + ret); } } /* make block locked assertion in clean_tree_block happy */ @@ -8874,7 +8921,7 @@ static noinline int walk_up_proc(struct btrfs_trans_handle *trans, btrfs_set_lock_blocking(eb); path->locks[level] = BTRFS_WRITE_LOCK_BLOCKING; } - clean_tree_block(trans, root->fs_info, eb); + clean_tree_block(trans, fs_info, eb); } if (eb == root->node) { @@ -8980,9 +9027,10 @@ int btrfs_drop_snapshot(struct btrfs_root *root, struct btrfs_block_rsv *block_rsv, int update_ref, int for_reloc) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct btrfs_trans_handle *trans; - struct btrfs_root *tree_root = root->fs_info->tree_root; + struct btrfs_root *tree_root = fs_info->tree_root; struct btrfs_root_item *root_item = &root->root_item; struct walk_control *wc; struct btrfs_key key; @@ -8991,7 +9039,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root, int level; bool root_dropped = false; - btrfs_debug(root->fs_info, "Drop subvolume %llu", root->objectid); + btrfs_debug(fs_info, "Drop subvolume %llu", root->objectid); path = btrfs_alloc_path(); if (!path) { @@ -9077,7 +9125,7 @@ int btrfs_drop_snapshot(struct btrfs_root *root, wc->update_ref = update_ref; wc->keep_locks = 0; wc->for_reloc = for_reloc; - wc->reada_count = BTRFS_NODEPTRS_PER_BLOCK(root->fs_info); + wc->reada_count = BTRFS_NODEPTRS_PER_BLOCK(fs_info); while (1) { @@ -9186,7 +9234,7 @@ out: if (!for_reloc && root_dropped == false) btrfs_add_dead_root(root); if (err && err != -EAGAIN) - btrfs_handle_fs_error(root->fs_info, err, NULL); + btrfs_handle_fs_error(fs_info, err, NULL); return err; } @@ -9201,6 +9249,7 @@ int btrfs_drop_subtree(struct btrfs_trans_handle *trans, struct extent_buffer *node, struct extent_buffer *parent) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct walk_control *wc; int level; @@ -9240,7 +9289,7 @@ int btrfs_drop_subtree(struct btrfs_trans_handle *trans, wc->update_ref = 0; wc->keep_locks = 1; wc->for_reloc = 1; - wc->reada_count = BTRFS_NODEPTRS_PER_BLOCK(root->fs_info); + wc->reada_count = BTRFS_NODEPTRS_PER_BLOCK(fs_info); while (1) { wret = walk_down_tree(trans, root, path, wc); @@ -9359,6 +9408,7 @@ int btrfs_inc_block_group_ro(struct btrfs_root *root, struct btrfs_block_group_cache *cache) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_trans_handle *trans; u64 alloc_flags; int ret; @@ -9373,11 +9423,11 @@ again: * block groups cache has started writing. If it already started, * back off and let this transaction commit */ - mutex_lock(&root->fs_info->ro_block_group_mutex); + mutex_lock(&fs_info->ro_block_group_mutex); if (test_bit(BTRFS_TRANS_DIRTY_BG_RUN, &trans->transaction->flags)) { u64 transid = trans->transid; - mutex_unlock(&root->fs_info->ro_block_group_mutex); + mutex_unlock(&fs_info->ro_block_group_mutex); btrfs_end_transaction(trans, root); ret = btrfs_wait_for_commit(root, transid); @@ -9390,7 +9440,7 @@ again: * if we are changing raid levels, try to allocate a corresponding * block group with the new raid level. */ - alloc_flags = update_block_group_flags(root->fs_info, cache->flags); + alloc_flags = update_block_group_flags(fs_info, cache->flags); if (alloc_flags != cache->flags) { ret = do_chunk_alloc(trans, root, alloc_flags, CHUNK_ALLOC_FORCE); @@ -9416,13 +9466,12 @@ again: ret = inc_block_group_ro(cache, 0); out: if (cache->flags & BTRFS_BLOCK_GROUP_SYSTEM) { - alloc_flags = update_block_group_flags(root->fs_info, - cache->flags); - lock_chunks(root->fs_info); + alloc_flags = update_block_group_flags(fs_info, cache->flags); + lock_chunks(fs_info); check_system_chunk(trans, root, alloc_flags); - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); } - mutex_unlock(&root->fs_info->ro_block_group_mutex); + mutex_unlock(&fs_info->ro_block_group_mutex); btrfs_end_transaction(trans, root); return ret; @@ -9509,7 +9558,7 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr) struct btrfs_root *root = fs_info->extent_root; struct btrfs_block_group_cache *block_group; struct btrfs_space_info *space_info; - struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices; + struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; struct btrfs_device *device; struct btrfs_trans_handle *trans; u64 min_free; @@ -9521,14 +9570,14 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr) int full = 0; int ret = 0; - debug = btrfs_test_opt(root->fs_info, ENOSPC_DEBUG); + debug = btrfs_test_opt(fs_info, ENOSPC_DEBUG); - block_group = btrfs_lookup_block_group(root->fs_info, bytenr); + block_group = btrfs_lookup_block_group(fs_info, bytenr); /* odd, couldn't find the block group, leave it alone */ if (!block_group) { if (debug) - btrfs_warn(root->fs_info, + btrfs_warn(fs_info, "can't find block group for bytenr %llu", bytenr); return -1; @@ -9578,7 +9627,7 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr) * 3: raid0 * 4: single */ - target = get_restripe_target(root->fs_info, block_group->flags); + target = get_restripe_target(fs_info, block_group->flags); if (target) { index = __get_raid_index(extended_to_chunk(target)); } else { @@ -9588,9 +9637,9 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr) */ if (full) { if (debug) - btrfs_warn(root->fs_info, - "no space to alloc new chunk for block group %llu", - block_group->key.objectid); + btrfs_warn(fs_info, + "no space to alloc new chunk for block group %llu", + block_group->key.objectid); goto out; } @@ -9618,7 +9667,7 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr) goto out; } - mutex_lock(&root->fs_info->chunk_mutex); + mutex_lock(&fs_info->chunk_mutex); list_for_each_entry(device, &fs_devices->alloc_list, dev_alloc_list) { u64 dev_offset; @@ -9640,10 +9689,10 @@ int btrfs_can_relocate(struct btrfs_fs_info *fs_info, u64 bytenr) } } if (debug && ret == -1) - btrfs_warn(root->fs_info, - "no space to allocate a new chunk for block group %llu", - block_group->key.objectid); - mutex_unlock(&root->fs_info->chunk_mutex); + btrfs_warn(fs_info, + "no space to allocate a new chunk for block group %llu", + block_group->key.objectid); + mutex_unlock(&fs_info->chunk_mutex); btrfs_end_transaction(trans, root); out: btrfs_put_block_group(block_group); @@ -9856,6 +9905,7 @@ out_err: static struct btrfs_block_group_cache * btrfs_create_block_group_cache(struct btrfs_root *root, u64 start, u64 size) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *cache; cache = kzalloc(sizeof(*cache), GFP_NOFS); @@ -9873,11 +9923,10 @@ btrfs_create_block_group_cache(struct btrfs_root *root, u64 start, u64 size) cache->key.offset = size; cache->key.type = BTRFS_BLOCK_GROUP_ITEM_KEY; - cache->sectorsize = root->fs_info->sectorsize; - cache->fs_info = root->fs_info; + cache->sectorsize = fs_info->sectorsize; + cache->fs_info = fs_info; cache->full_stripe_len = btrfs_full_stripe_len(root, - &root->fs_info->mapping_tree, - start); + &fs_info->mapping_tree, start); set_free_space_tree_thresholds(cache); atomic_set(&cache->count, 1); @@ -9917,11 +9966,11 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info) return -ENOMEM; path->reada = READA_FORWARD; - cache_gen = btrfs_super_cache_generation(root->fs_info->super_copy); - if (btrfs_test_opt(root->fs_info, SPACE_CACHE) && - btrfs_super_generation(root->fs_info->super_copy) != cache_gen) + cache_gen = btrfs_super_cache_generation(info->super_copy); + if (btrfs_test_opt(info, SPACE_CACHE) && + btrfs_super_generation(info->super_copy) != cache_gen) need_clear = 1; - if (btrfs_test_opt(root->fs_info, CLEAR_CACHE)) + if (btrfs_test_opt(info, CLEAR_CACHE)) need_clear = 1; while (1) { @@ -9952,7 +10001,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info) * b) Setting 'dirty flag' makes sure that we flush * the new space cache info onto disk. */ - if (btrfs_test_opt(root->fs_info, SPACE_CACHE)) + if (btrfs_test_opt(info, SPACE_CACHE)) cache->disk_cache_state = BTRFS_DC_CLEAR; } @@ -9994,14 +10043,14 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info) } else if (btrfs_block_group_used(&cache->item) == 0) { cache->last_byte_to_unpin = (u64)-1; cache->cached = BTRFS_CACHE_FINISHED; - add_new_free_space(cache, root->fs_info, + add_new_free_space(cache, info, found_key.objectid, found_key.objectid + found_key.offset); free_excluded_extents(root, cache); } - ret = btrfs_add_block_group_cache(root->fs_info, cache); + ret = btrfs_add_block_group_cache(info, cache); if (ret) { btrfs_remove_free_space_cache(cache); btrfs_put_block_group(cache); @@ -10029,7 +10078,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info) __link_block_group(space_info, cache); - set_avail_alloc_bits(root->fs_info, cache->flags); + set_avail_alloc_bits(info, cache->flags); if (btrfs_chunk_readonly(root, cache->key.objectid)) { inc_block_group_ro(cache, 1); } else if (btrfs_block_group_used(&cache->item) == 0) { @@ -10044,7 +10093,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info) } } - list_for_each_entry_rcu(space_info, &root->fs_info->space_info, list) { + list_for_each_entry_rcu(space_info, &info->space_info, list) { if (!(get_alloc_profile(root, space_info->flags) & (BTRFS_BLOCK_GROUP_RAID10 | BTRFS_BLOCK_GROUP_RAID1 | @@ -10076,8 +10125,9 @@ error: void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *block_group, *tmp; - struct btrfs_root *extent_root = root->fs_info->extent_root; + struct btrfs_root *extent_root = fs_info->extent_root; struct btrfs_block_group_item item; struct btrfs_key key; int ret = 0; @@ -10097,11 +10147,11 @@ void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans, sizeof(item)); if (ret) btrfs_abort_transaction(trans, ret); - ret = btrfs_finish_chunk_alloc(trans, extent_root->fs_info, - key.objectid, key.offset); + ret = btrfs_finish_chunk_alloc(trans, fs_info, key.objectid, + key.offset); if (ret) btrfs_abort_transaction(trans, ret); - add_block_group_free_space(trans, root->fs_info, block_group); + add_block_group_free_space(trans, fs_info, block_group); /* already aborted the transaction if it failed. */ next: list_del_init(&block_group->bg_list); @@ -10114,13 +10164,14 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, u64 type, u64 chunk_objectid, u64 chunk_offset, u64 size) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; struct btrfs_root *extent_root; struct btrfs_block_group_cache *cache; - extent_root = root->fs_info->extent_root; + extent_root = fs_info->extent_root; - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); cache = btrfs_create_block_group_cache(root, chunk_offset, size); if (!cache) @@ -10145,8 +10196,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, return ret; } - add_new_free_space(cache, root->fs_info, chunk_offset, - chunk_offset + size); + add_new_free_space(cache, fs_info, chunk_offset, chunk_offset + size); free_excluded_extents(root, cache); @@ -10163,7 +10213,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, * assigned to our block group, but don't update its counters just yet. * We want our bg to be added to the rbtree with its ->space_info set. */ - ret = update_space_info(root->fs_info, cache->flags, 0, 0, + ret = update_space_info(fs_info, cache->flags, 0, 0, &cache->space_info); if (ret) { btrfs_remove_free_space_cache(cache); @@ -10171,7 +10221,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, return ret; } - ret = btrfs_add_block_group_cache(root->fs_info, cache); + ret = btrfs_add_block_group_cache(fs_info, cache); if (ret) { btrfs_remove_free_space_cache(cache); btrfs_put_block_group(cache); @@ -10182,19 +10232,19 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, * Now that our block group has its ->space_info set and is inserted in * the rbtree, update the space info's counters. */ - ret = update_space_info(root->fs_info, cache->flags, size, bytes_used, + ret = update_space_info(fs_info, cache->flags, size, bytes_used, &cache->space_info); if (ret) { btrfs_remove_free_space_cache(cache); - spin_lock(&root->fs_info->block_group_cache_lock); + spin_lock(&fs_info->block_group_cache_lock); rb_erase(&cache->cache_node, - &root->fs_info->block_group_cache_tree); + &fs_info->block_group_cache_tree); RB_CLEAR_NODE(&cache->cache_node); - spin_unlock(&root->fs_info->block_group_cache_lock); + spin_unlock(&fs_info->block_group_cache_lock); btrfs_put_block_group(cache); return ret; } - update_global_block_rsv(root->fs_info); + update_global_block_rsv(fs_info); spin_lock(&cache->space_info->lock); cache->space_info->bytes_readonly += cache->bytes_super; @@ -10204,7 +10254,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans, list_add_tail(&cache->bg_list, &trans->new_bgs); - set_avail_alloc_bits(extent_root->fs_info, type); + set_avail_alloc_bits(fs_info, type); return 0; } @@ -10232,7 +10282,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, struct btrfs_path *path; struct btrfs_block_group_cache *block_group; struct btrfs_free_cluster *cluster; - struct btrfs_root *tree_root = root->fs_info->tree_root; + struct btrfs_root *tree_root = fs_info->tree_root; struct btrfs_key key; struct inode *inode; struct kobject *kobj = NULL; @@ -10262,7 +10312,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, factor = 1; /* make sure this block group isn't part of an allocation cluster */ - cluster = &root->fs_info->data_alloc_cluster; + cluster = &fs_info->data_alloc_cluster; spin_lock(&cluster->refill_lock); btrfs_return_cluster_to_free_space(block_group, cluster); spin_unlock(&cluster->refill_lock); @@ -10271,7 +10321,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, * make sure this block group isn't part of a metadata * allocation cluster */ - cluster = &root->fs_info->meta_alloc_cluster; + cluster = &fs_info->meta_alloc_cluster; spin_lock(&cluster->refill_lock); btrfs_return_cluster_to_free_space(block_group, cluster); spin_unlock(&cluster->refill_lock); @@ -10351,14 +10401,14 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, btrfs_release_path(path); } - spin_lock(&root->fs_info->block_group_cache_lock); + spin_lock(&fs_info->block_group_cache_lock); rb_erase(&block_group->cache_node, - &root->fs_info->block_group_cache_tree); + &fs_info->block_group_cache_tree); RB_CLEAR_NODE(&block_group->cache_node); - if (root->fs_info->first_logical_byte == block_group->key.objectid) - root->fs_info->first_logical_byte = (u64)-1; - spin_unlock(&root->fs_info->block_group_cache_lock); + if (fs_info->first_logical_byte == block_group->key.objectid) + fs_info->first_logical_byte = (u64)-1; + spin_unlock(&fs_info->block_group_cache_lock); down_write(&block_group->space_info->groups_sem); /* @@ -10369,7 +10419,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, if (list_empty(&block_group->space_info->block_groups[index])) { kobj = block_group->space_info->block_group_kobjs[index]; block_group->space_info->block_group_kobjs[index] = NULL; - clear_avail_alloc_bits(root->fs_info, block_group->flags); + clear_avail_alloc_bits(fs_info, block_group->flags); } up_write(&block_group->space_info->groups_sem); if (kobj) { @@ -10382,12 +10432,12 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, if (block_group->cached == BTRFS_CACHE_STARTED) wait_block_group_cache_done(block_group); if (block_group->has_caching_ctl) { - down_write(&root->fs_info->commit_root_sem); + down_write(&fs_info->commit_root_sem); if (!caching_ctl) { struct btrfs_caching_control *ctl; list_for_each_entry(ctl, - &root->fs_info->caching_block_groups, list) + &fs_info->caching_block_groups, list) if (ctl->block_group == block_group) { caching_ctl = ctl; atomic_inc(&caching_ctl->count); @@ -10396,7 +10446,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, } if (caching_ctl) list_del_init(&caching_ctl->list); - up_write(&root->fs_info->commit_root_sem); + up_write(&fs_info->commit_root_sem); if (caching_ctl) { /* Once for the caching bgs list and once for us. */ put_caching_control(caching_ctl); @@ -10417,7 +10467,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, spin_lock(&block_group->space_info->lock); list_del_init(&block_group->ro_list); - if (btrfs_test_opt(root->fs_info, ENOSPC_DEBUG)) { + if (btrfs_test_opt(fs_info, ENOSPC_DEBUG)) { WARN_ON(block_group->space_info->total_bytes < block_group->key.offset); WARN_ON(block_group->space_info->bytes_readonly @@ -10433,7 +10483,7 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, memcpy(&key, &block_group->key, sizeof(key)); - lock_chunks(root->fs_info); + lock_chunks(fs_info); if (!list_empty(&em->list)) { /* We're in the transaction->pending_chunks list. */ free_extent_map(em); @@ -10481,14 +10531,14 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, * sees the em, either in the pending_chunks list or in the * pinned_chunks list. */ - list_move_tail(&em->list, &root->fs_info->pinned_chunks); + list_move_tail(&em->list, &fs_info->pinned_chunks); } spin_unlock(&block_group->lock); if (remove_em) { struct extent_map_tree *em_tree; - em_tree = &root->fs_info->mapping_tree.map_tree; + em_tree = &fs_info->mapping_tree.map_tree; write_lock(&em_tree->lock); /* * The em might be in the pending_chunks list, so make sure the @@ -10501,9 +10551,9 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans, free_extent_map(em); } - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); - ret = remove_block_group_free_space(trans, root->fs_info, block_group); + ret = remove_block_group_free_space(trans, fs_info, block_group); if (ret) goto out; @@ -10685,7 +10735,7 @@ void btrfs_delete_unused_bgs(struct btrfs_fs_info *fs_info) spin_unlock(&space_info->lock); /* DISCARD can flip during remount */ - trimming = btrfs_test_opt(root->fs_info, DISCARD); + trimming = btrfs_test_opt(fs_info, DISCARD); /* Implicit trim during transaction commit. */ if (trimming) @@ -10921,8 +10971,8 @@ int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range) cache = next_block_group(fs_info->tree_root, cache); } - mutex_lock(&root->fs_info->fs_devices->device_list_mutex); - devices = &root->fs_info->fs_devices->alloc_list; + mutex_lock(&fs_info->fs_devices->device_list_mutex); + devices = &fs_info->fs_devices->alloc_list; list_for_each_entry(device, devices, dev_alloc_list) { ret = btrfs_trim_free_extents(device, range->minlen, &group_trimmed); @@ -10931,7 +10981,7 @@ int btrfs_trim_fs(struct btrfs_root *root, struct fstrim_range *range) trimmed += group_trimmed; } - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); range->len = trimmed; return ret; diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index dccfab28726a..462408fad0db 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -2071,17 +2071,18 @@ int repair_io_failure(struct inode *inode, u64 start, u64 length, u64 logical, int repair_eb_io_failure(struct btrfs_root *root, struct extent_buffer *eb, int mirror_num) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 start = eb->start; unsigned long i, num_pages = num_extent_pages(eb->start, eb->len); int ret = 0; - if (root->fs_info->sb->s_flags & MS_RDONLY) + if (fs_info->sb->s_flags & MS_RDONLY) return -EROFS; for (i = 0; i < num_pages; i++) { struct page *p = eb->pages[i]; - ret = repair_io_failure(root->fs_info->btree_inode, start, + ret = repair_io_failure(fs_info->btree_inode, start, PAGE_SIZE, start, p, start - page_offset(p), mirror_num); if (ret) @@ -2336,6 +2337,7 @@ struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio, struct page *page, int pg_offset, int icsum, bio_end_io_t *endio_func, void *data) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct bio *bio; struct btrfs_io_bio *btrfs_failed_bio; struct btrfs_io_bio *btrfs_bio; @@ -2346,13 +2348,12 @@ struct bio *btrfs_create_repair_bio(struct inode *inode, struct bio *failed_bio, bio->bi_end_io = endio_func; bio->bi_iter.bi_sector = failrec->logical >> 9; - bio->bi_bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev; + bio->bi_bdev = fs_info->fs_devices->latest_bdev; bio->bi_iter.bi_size = 0; bio->bi_private = data; btrfs_failed_bio = btrfs_io_bio(failed_bio); if (btrfs_failed_bio->csum) { - struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info; u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); btrfs_bio = btrfs_io_bio(bio); @@ -2470,6 +2471,8 @@ static void end_bio_extent_writepage(struct bio *bio) bio_for_each_segment_all(bvec, bio, i) { struct page *page = bvec->bv_page; + struct inode *inode = page->mapping->host; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); /* We always issue full-page reads, but if some block * in a page fails to read, blk_update_request() will @@ -2478,13 +2481,12 @@ static void end_bio_extent_writepage(struct bio *bio) * if they don't add up to a full page. */ if (bvec->bv_offset || bvec->bv_len != PAGE_SIZE) { if (bvec->bv_offset + bvec->bv_len != PAGE_SIZE) - btrfs_err(BTRFS_I(page->mapping->host)->root->fs_info, + btrfs_err(fs_info, "partial page write in btrfs with offset %u and length %u", bvec->bv_offset, bvec->bv_len); else - btrfs_info(BTRFS_I(page->mapping->host)->root->fs_info, - "incomplete page write in btrfs with offset %u and " - "length %u", + btrfs_info(fs_info, + "incomplete page write in btrfs with offset %u and length %u", bvec->bv_offset, bvec->bv_len); } @@ -2540,6 +2542,7 @@ static void end_bio_extent_readpage(struct bio *bio) bio_for_each_segment_all(bvec, bio, i) { struct page *page = bvec->bv_page; struct inode *inode = page->mapping->host; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); pr_debug("end_bio_extent_readpage: bi_sector=%llu, err=%d, " "mirror=%u\n", (u64)bio->bi_iter.bi_sector, @@ -2553,13 +2556,12 @@ static void end_bio_extent_readpage(struct bio *bio) * if they don't add up to a full page. */ if (bvec->bv_offset || bvec->bv_len != PAGE_SIZE) { if (bvec->bv_offset + bvec->bv_len != PAGE_SIZE) - btrfs_err(BTRFS_I(page->mapping->host)->root->fs_info, + btrfs_err(fs_info, "partial page read in btrfs with offset %u and length %u", bvec->bv_offset, bvec->bv_len); else - btrfs_info(BTRFS_I(page->mapping->host)->root->fs_info, - "incomplete page read in btrfs with offset %u and " - "length %u", + btrfs_info(fs_info, + "incomplete page read in btrfs with offset %u and length %u", bvec->bv_offset, bvec->bv_len); } diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c index 163fb2e699ec..35634c5cae4d 100644 --- a/fs/btrfs/file-item.c +++ b/fs/btrfs/file-item.c @@ -92,13 +92,14 @@ btrfs_lookup_csum(struct btrfs_trans_handle *trans, struct btrfs_path *path, u64 bytenr, int cow) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; struct btrfs_key file_key; struct btrfs_key found_key; struct btrfs_csum_item *item; struct extent_buffer *leaf; u64 csum_offset = 0; - u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); + u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); int csums_in_item; file_key.objectid = BTRFS_EXTENT_CSUM_OBJECTID; @@ -118,7 +119,7 @@ btrfs_lookup_csum(struct btrfs_trans_handle *trans, goto fail; csum_offset = (bytenr - found_key.offset) >> - root->fs_info->sb->s_blocksize_bits; + fs_info->sb->s_blocksize_bits; csums_in_item = btrfs_item_size_nr(leaf, path->slots[0]); csums_in_item /= csum_size; @@ -165,6 +166,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode, struct bio *bio, u64 logical_offset, u32 *dst, int dio) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct bio_vec *bvec = bio->bi_io_vec; struct btrfs_io_bio *btrfs_bio = btrfs_io_bio(bio); struct btrfs_csum_item *item = NULL; @@ -180,7 +182,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, int nblocks; int bio_index = 0; int count; - u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); + u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); path = btrfs_alloc_path(); if (!path) @@ -241,7 +243,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, if (item) btrfs_release_path(path); - item = btrfs_lookup_csum(NULL, root->fs_info->csum_root, + item = btrfs_lookup_csum(NULL, fs_info->csum_root, path, disk_bytenr, 0); if (IS_ERR(item)) { count = 1; @@ -249,10 +251,10 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, if (BTRFS_I(inode)->root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID) { set_extent_bits(io_tree, offset, - offset + root->fs_info->sectorsize - 1, + offset + fs_info->sectorsize - 1, EXTENT_NODATASUM); } else { - btrfs_info(BTRFS_I(inode)->root->fs_info, + btrfs_info(fs_info, "no csum found for inode %llu start %llu", btrfs_ino(inode), offset); } @@ -268,7 +270,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, path->slots[0]); item_last_offset = item_start_offset + (item_size / csum_size) * - root->fs_info->sectorsize; + fs_info->sectorsize; item = btrfs_item_ptr(path->nodes[0], path->slots[0], struct btrfs_csum_item); } @@ -277,7 +279,7 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root, * a single leaf so it will also fit inside a u32 */ diff = disk_bytenr - item_start_offset; - diff = diff / root->fs_info->sectorsize; + diff = diff / fs_info->sectorsize; diff = diff * csum_size; count = min_t(int, nblocks, (item_last_offset - disk_bytenr) >> inode->i_sb->s_blocksize_bits); @@ -289,9 +291,9 @@ found: nblocks -= count; while (count--) { - disk_bytenr += root->fs_info->sectorsize; - offset += root->fs_info->sectorsize; - page_bytes_left -= root->fs_info->sectorsize; + disk_bytenr += fs_info->sectorsize; + offset += fs_info->sectorsize; + page_bytes_left -= fs_info->sectorsize; if (!page_bytes_left) { bio_index++; /* @@ -329,6 +331,7 @@ int btrfs_lookup_bio_sums_dio(struct btrfs_root *root, struct inode *inode, int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, struct list_head *list, int search_commit) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_key key; struct btrfs_path *path; struct extent_buffer *leaf; @@ -339,10 +342,10 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, int ret; size_t size; u64 csum_end; - u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); + u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); - ASSERT(IS_ALIGNED(start, root->fs_info->sectorsize) && - IS_ALIGNED(end + 1, root->fs_info->sectorsize)); + ASSERT(IS_ALIGNED(start, fs_info->sectorsize) && + IS_ALIGNED(end + 1, fs_info->sectorsize)); path = btrfs_alloc_path(); if (!path) @@ -367,7 +370,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, if (key.objectid == BTRFS_EXTENT_CSUM_OBJECTID && key.type == BTRFS_EXTENT_CSUM_KEY) { offset = (start - key.offset) >> - root->fs_info->sb->s_blocksize_bits; + fs_info->sb->s_blocksize_bits; if (offset * csum_size < btrfs_item_size_nr(leaf, path->slots[0] - 1)) path->slots[0]--; @@ -395,7 +398,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, start = key.offset; size = btrfs_item_size_nr(leaf, path->slots[0]); - csum_end = key.offset + (size / csum_size) * root->fs_info->sectorsize; + csum_end = key.offset + (size / csum_size) * fs_info->sectorsize; if (csum_end <= start) { path->slots[0]++; continue; @@ -406,9 +409,8 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, struct btrfs_csum_item); while (start < csum_end) { size = min_t(size_t, csum_end - start, - MAX_ORDERED_SUM_BYTES(root->fs_info)); - sums = kzalloc(btrfs_ordered_sum_size(root->fs_info, - size), + MAX_ORDERED_SUM_BYTES(fs_info)); + sums = kzalloc(btrfs_ordered_sum_size(fs_info, size), GFP_NOFS); if (!sums) { ret = -ENOMEM; @@ -419,16 +421,16 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end, sums->len = (int)size; offset = (start - key.offset) >> - root->fs_info->sb->s_blocksize_bits; + fs_info->sb->s_blocksize_bits; offset *= csum_size; - size >>= root->fs_info->sb->s_blocksize_bits; + size >>= fs_info->sb->s_blocksize_bits; read_extent_buffer(path->nodes[0], sums->sums, ((unsigned long)item) + offset, csum_size * size); - start += root->fs_info->sectorsize * size; + start += fs_info->sectorsize * size; list_add_tail(&sums->list, &tmplist); } path->slots[0]++; @@ -449,6 +451,7 @@ fail: int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, struct bio *bio, u64 file_start, int contig) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ordered_sum *sums; struct btrfs_ordered_extent *ordered; char *data; @@ -462,8 +465,7 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, u64 offset; WARN_ON(bio->bi_vcnt <= 0); - sums = kzalloc(btrfs_ordered_sum_size(root->fs_info, - bio->bi_iter.bi_size), + sums = kzalloc(btrfs_ordered_sum_size(fs_info, bio->bi_iter.bi_size), GFP_NOFS); if (!sums) return -ENOMEM; @@ -487,9 +489,9 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, data = kmap_atomic(bvec->bv_page); - nr_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info, - bvec->bv_len + root->fs_info->sectorsize - - 1); + nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, + bvec->bv_len + fs_info->sectorsize + - 1); for (i = 0; i < nr_sectors; i++) { if (offset >= ordered->file_offset + ordered->len || @@ -504,8 +506,8 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, bytes_left = bio->bi_iter.bi_size - total_bytes; - sums = kzalloc(btrfs_ordered_sum_size(root->fs_info, bytes_left), - GFP_NOFS); + sums = kzalloc(btrfs_ordered_sum_size(fs_info, bytes_left), + GFP_NOFS); BUG_ON(!sums); /* -ENOMEM */ sums->len = bytes_left; ordered = btrfs_lookup_ordered_extent(inode, @@ -521,15 +523,15 @@ int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode, sums->sums[index] = ~(u32)0; sums->sums[index] = btrfs_csum_data(data + bvec->bv_offset - + (i * root->fs_info->sectorsize), + + (i * fs_info->sectorsize), sums->sums[index], - root->fs_info->sectorsize); + fs_info->sectorsize); btrfs_csum_final(sums->sums[index], (char *)(sums->sums + index)); index++; - offset += root->fs_info->sectorsize; - this_sum_bytes += root->fs_info->sectorsize; - total_bytes += root->fs_info->sectorsize; + offset += fs_info->sectorsize; + this_sum_bytes += fs_info->sectorsize; + total_bytes += fs_info->sectorsize; } kunmap_atomic(data); @@ -559,15 +561,16 @@ static noinline void truncate_one_csum(struct btrfs_root *root, struct btrfs_key *key, u64 bytenr, u64 len) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *leaf; - u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); + u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); u64 csum_end; u64 end_byte = bytenr + len; - u32 blocksize_bits = root->fs_info->sb->s_blocksize_bits; + u32 blocksize_bits = fs_info->sb->s_blocksize_bits; leaf = path->nodes[0]; csum_end = btrfs_item_size_nr(leaf, path->slots[0]) / csum_size; - csum_end <<= root->fs_info->sb->s_blocksize_bits; + csum_end <<= fs_info->sb->s_blocksize_bits; csum_end += key->offset; if (key->offset < bytenr && csum_end <= end_byte) { @@ -594,7 +597,7 @@ static noinline void truncate_one_csum(struct btrfs_root *root, btrfs_truncate_item(root, path, new_size, 0); key->offset = end_byte; - btrfs_set_item_key_safe(root->fs_info, path, key); + btrfs_set_item_key_safe(fs_info, path, key); } else { BUG(); } @@ -724,6 +727,7 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_ordered_sum *sums) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_key file_key; struct btrfs_key found_key; struct btrfs_path *path; @@ -739,7 +743,7 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans, int index = 0; int found_next; int ret; - u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy); + u16 csum_size = btrfs_super_csum_size(fs_info->super_copy); path = btrfs_alloc_path(); if (!path) @@ -772,7 +776,7 @@ again: leaf = path->nodes[0]; item_size = btrfs_item_size_nr(leaf, path->slots[0]); if ((item_size / csum_size) >= - MAX_CSUM_ITEMS(root->fs_info, csum_size)) { + MAX_CSUM_ITEMS(fs_info, csum_size)) { /* already at max size, make a new one */ goto insert; } @@ -818,11 +822,11 @@ again: leaf = path->nodes[0]; btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]); csum_offset = (bytenr - found_key.offset) >> - root->fs_info->sb->s_blocksize_bits; + fs_info->sb->s_blocksize_bits; if (found_key.type != BTRFS_EXTENT_CSUM_KEY || found_key.objectid != BTRFS_EXTENT_CSUM_OBJECTID || - csum_offset >= MAX_CSUM_ITEMS(root->fs_info, csum_size)) { + csum_offset >= MAX_CSUM_ITEMS(fs_info, csum_size)) { goto insert; } @@ -840,12 +844,13 @@ again: free_space = btrfs_leaf_free_space(root, leaf) - sizeof(struct btrfs_item) - csum_size; tmp = sums->len - total_bytes; - tmp >>= root->fs_info->sb->s_blocksize_bits; + tmp >>= fs_info->sb->s_blocksize_bits; WARN_ON(tmp < 1); extend_nr = max_t(int, 1, (int)tmp); diff = (csum_offset + extend_nr) * csum_size; - diff = min(diff, MAX_CSUM_ITEMS(root->fs_info, csum_size) * csum_size); + diff = min(diff, + MAX_CSUM_ITEMS(fs_info, csum_size) * csum_size); diff = diff - btrfs_item_size_nr(leaf, path->slots[0]); diff = min(free_space, diff); @@ -864,12 +869,12 @@ insert: u64 tmp; tmp = sums->len - total_bytes; - tmp >>= root->fs_info->sb->s_blocksize_bits; + tmp >>= fs_info->sb->s_blocksize_bits; tmp = min(tmp, (next_offset - file_key.offset) >> - root->fs_info->sb->s_blocksize_bits); + fs_info->sb->s_blocksize_bits); tmp = max((u64)1, tmp); - tmp = min(tmp, (u64)MAX_CSUM_ITEMS(root->fs_info, csum_size)); + tmp = min(tmp, (u64)MAX_CSUM_ITEMS(fs_info, csum_size)); ins_size = csum_size * tmp; } else { ins_size = csum_size; @@ -891,7 +896,7 @@ csum: csum_offset * csum_size); found: ins_size = (u32)(sums->len - total_bytes) >> - root->fs_info->sb->s_blocksize_bits; + fs_info->sb->s_blocksize_bits; ins_size *= csum_size; ins_size = min_t(u32, (unsigned long)item_end - (unsigned long)item, ins_size); @@ -899,7 +904,7 @@ found: ins_size); ins_size /= csum_size; - total_bytes += ins_size * root->fs_info->sectorsize; + total_bytes += ins_size * fs_info->sectorsize; index += ins_size; btrfs_mark_buffer_dirty(path->nodes[0]); @@ -922,6 +927,7 @@ void btrfs_extent_item_to_extent_map(struct inode *inode, const bool new_inline, struct extent_map *em) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct extent_buffer *leaf = path->nodes[0]; const int slot = path->slots[0]; @@ -931,7 +937,7 @@ void btrfs_extent_item_to_extent_map(struct inode *inode, u8 type = btrfs_file_extent_type(leaf, fi); int compress_type = btrfs_file_extent_compression(leaf, fi); - em->bdev = root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; btrfs_item_key_to_cpu(leaf, &key, slot); extent_start = key.offset; @@ -943,7 +949,7 @@ void btrfs_extent_item_to_extent_map(struct inode *inode, size_t size; size = btrfs_file_extent_inline_len(leaf, slot, fi); extent_end = ALIGN(extent_start + size, - root->fs_info->sectorsize); + fs_info->sectorsize); } em->ram_bytes = btrfs_file_extent_ram_bytes(leaf, fi); @@ -986,7 +992,7 @@ void btrfs_extent_item_to_extent_map(struct inode *inode, em->compress_type = compress_type; } } else { - btrfs_err(root->fs_info, + btrfs_err(fs_info, "unknown file extent item type %d, inode %llu, offset %llu, root %llu", type, btrfs_ino(inode), extent_start, root->root_key.objectid); diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index cae6a4517d83..c60ec668eaf2 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -96,13 +96,13 @@ static int __compare_inode_defrag(struct inode_defrag *defrag1, static int __btrfs_add_inode_defrag(struct inode *inode, struct inode_defrag *defrag) { - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct inode_defrag *entry; struct rb_node **p; struct rb_node *parent = NULL; int ret; - p = &root->fs_info->defrag_inodes.rb_node; + p = &fs_info->defrag_inodes.rb_node; while (*p) { parent = *p; entry = rb_entry(parent, struct inode_defrag, rb_node); @@ -126,16 +126,18 @@ static int __btrfs_add_inode_defrag(struct inode *inode, } set_bit(BTRFS_INODE_IN_DEFRAG, &BTRFS_I(inode)->runtime_flags); rb_link_node(&defrag->rb_node, parent, p); - rb_insert_color(&defrag->rb_node, &root->fs_info->defrag_inodes); + rb_insert_color(&defrag->rb_node, &fs_info->defrag_inodes); return 0; } static inline int __need_auto_defrag(struct btrfs_root *root) { - if (!btrfs_test_opt(root->fs_info, AUTO_DEFRAG)) + struct btrfs_fs_info *fs_info = root->fs_info; + + if (!btrfs_test_opt(fs_info, AUTO_DEFRAG)) return 0; - if (btrfs_fs_closing(root->fs_info)) + if (btrfs_fs_closing(fs_info)) return 0; return 1; @@ -148,6 +150,7 @@ static inline int __need_auto_defrag(struct btrfs_root *root) int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans, struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct inode_defrag *defrag; u64 transid; @@ -172,7 +175,7 @@ int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans, defrag->transid = transid; defrag->root = root->root_key.objectid; - spin_lock(&root->fs_info->defrag_inodes_lock); + spin_lock(&fs_info->defrag_inodes_lock); if (!test_bit(BTRFS_INODE_IN_DEFRAG, &BTRFS_I(inode)->runtime_flags)) { /* * If we set IN_DEFRAG flag and evict the inode from memory, @@ -185,7 +188,7 @@ int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans, } else { kmem_cache_free(btrfs_inode_defrag_cachep, defrag); } - spin_unlock(&root->fs_info->defrag_inodes_lock); + spin_unlock(&fs_info->defrag_inodes_lock); return 0; } @@ -197,6 +200,7 @@ int btrfs_add_inode_defrag(struct btrfs_trans_handle *trans, static void btrfs_requeue_inode_defrag(struct inode *inode, struct inode_defrag *defrag) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; int ret; @@ -207,9 +211,9 @@ static void btrfs_requeue_inode_defrag(struct inode *inode, * Here we don't check the IN_DEFRAG flag, because we need merge * them together. */ - spin_lock(&root->fs_info->defrag_inodes_lock); + spin_lock(&fs_info->defrag_inodes_lock); ret = __btrfs_add_inode_defrag(inode, defrag); - spin_unlock(&root->fs_info->defrag_inodes_lock); + spin_unlock(&fs_info->defrag_inodes_lock); if (ret) goto out; return; @@ -490,6 +494,7 @@ int btrfs_dirty_pages(struct btrfs_root *root, struct inode *inode, loff_t pos, size_t write_bytes, struct extent_state **cached) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); int err = 0; int i; u64 num_bytes; @@ -498,9 +503,9 @@ int btrfs_dirty_pages(struct btrfs_root *root, struct inode *inode, u64 end_pos = pos + write_bytes; loff_t isize = i_size_read(inode); - start_pos = pos & ~((u64) root->fs_info->sectorsize - 1); + start_pos = pos & ~((u64) fs_info->sectorsize - 1); num_bytes = round_up(write_bytes + pos - start_pos, - root->fs_info->sectorsize); + fs_info->sectorsize); end_of_last_block = start_pos + num_bytes - 1; err = btrfs_set_extent_delalloc(inode, start_pos, end_of_last_block, @@ -697,6 +702,7 @@ int __btrfs_drop_extents(struct btrfs_trans_handle *trans, u32 extent_item_size, int *key_inserted) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_buffer *leaf; struct btrfs_file_extent_item *fi; struct btrfs_key key; @@ -724,7 +730,7 @@ int __btrfs_drop_extents(struct btrfs_trans_handle *trans, modify_tree = 0; update_refs = (test_bit(BTRFS_ROOT_REF_COWS, &root->state) || - root == root->fs_info->tree_root); + root == fs_info->tree_root); while (1) { recow = 0; ret = btrfs_lookup_file_extent(trans, root, path, ino, @@ -873,7 +879,7 @@ next_slot: memcpy(&new_key, &key, sizeof(new_key)); new_key.offset = end; - btrfs_set_item_key_safe(root->fs_info, path, &new_key); + btrfs_set_item_key_safe(fs_info, path, &new_key); extent_offset += end - key.offset; btrfs_set_file_extent_offset(leaf, fi, extent_offset); @@ -928,7 +934,7 @@ delete_extent_item: inode_sub_bytes(inode, extent_end - key.offset); extent_end = ALIGN(extent_end, - root->fs_info->sectorsize); + fs_info->sectorsize); } else if (update_refs && disk_bytenr > 0) { ret = btrfs_free_extent(trans, root, disk_bytenr, num_bytes, 0, @@ -1074,6 +1080,7 @@ static int extent_mergeable(struct extent_buffer *leaf, int slot, int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, struct inode *inode, u64 start, u64 end) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct extent_buffer *leaf; struct btrfs_path *path; @@ -1131,7 +1138,7 @@ again: ino, bytenr, orig_offset, &other_start, &other_end)) { new_key.offset = end; - btrfs_set_item_key_safe(root->fs_info, path, &new_key); + btrfs_set_item_key_safe(fs_info, path, &new_key); fi = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_file_extent_item); btrfs_set_file_extent_generation(leaf, fi, @@ -1165,7 +1172,7 @@ again: trans->transid); path->slots[0]++; new_key.offset = start; - btrfs_set_item_key_safe(root->fs_info, path, &new_key); + btrfs_set_item_key_safe(fs_info, path, &new_key); fi = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_file_extent_item); @@ -1385,16 +1392,16 @@ lock_and_cleanup_extent_if_need(struct inode *inode, struct page **pages, u64 *lockstart, u64 *lockend, struct extent_state **cached_state) { - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); u64 start_pos; u64 last_pos; int i; int ret = 0; - start_pos = round_down(pos, root->fs_info->sectorsize); + start_pos = round_down(pos, fs_info->sectorsize); last_pos = start_pos + round_up(pos + write_bytes - start_pos, - root->fs_info->sectorsize) - 1; + fs_info->sectorsize) - 1; if (start_pos < inode->i_size) { struct btrfs_ordered_extent *ordered; @@ -1441,6 +1448,7 @@ lock_and_cleanup_extent_if_need(struct inode *inode, struct page **pages, static noinline int check_can_nocow(struct inode *inode, loff_t pos, size_t *write_bytes) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_ordered_extent *ordered; u64 lockstart, lockend; @@ -1451,9 +1459,9 @@ static noinline int check_can_nocow(struct inode *inode, loff_t pos, if (!ret) return -ENOSPC; - lockstart = round_down(pos, root->fs_info->sectorsize); + lockstart = round_down(pos, fs_info->sectorsize); lockend = round_up(pos + *write_bytes, - root->fs_info->sectorsize) - 1; + fs_info->sectorsize) - 1; while (1) { lock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend); @@ -1487,6 +1495,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file, loff_t pos) { struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct page **pages = NULL; struct extent_state *cached_state = NULL; @@ -1533,9 +1542,9 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file, break; } - sector_offset = pos & (root->fs_info->sectorsize - 1); + sector_offset = pos & (fs_info->sectorsize - 1); reserve_bytes = round_up(write_bytes + sector_offset, - root->fs_info->sectorsize); + fs_info->sectorsize); if ((BTRFS_I(inode)->flags & (BTRFS_INODE_NODATACOW | BTRFS_INODE_PREALLOC)) && @@ -1552,7 +1561,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file, num_pages = DIV_ROUND_UP(write_bytes + offset, PAGE_SIZE); reserve_bytes = round_up(write_bytes + sector_offset, - root->fs_info->sectorsize); + fs_info->sectorsize); goto reserve_metadata; } @@ -1599,12 +1608,10 @@ again: copied = btrfs_copy_from_user(pos, write_bytes, pages, i); - num_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info, - reserve_bytes); + num_sectors = BTRFS_BYTES_TO_BLKS(fs_info, reserve_bytes); dirty_sectors = round_up(copied + sector_offset, - root->fs_info->sectorsize); - dirty_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info, - dirty_sectors); + fs_info->sectorsize); + dirty_sectors = BTRFS_BYTES_TO_BLKS(fs_info, dirty_sectors); /* * if we have trouble faulting in the pages, fall @@ -1638,7 +1645,7 @@ again: * IO machines */ release_bytes = round_down(release_bytes - copied, - root->fs_info->sectorsize); + fs_info->sectorsize); if (copied > 0) { spin_lock(&BTRFS_I(inode)->lock); BTRFS_I(inode)->outstanding_extents++; @@ -1651,7 +1658,7 @@ again: u64 __pos; __pos = round_down(pos, - root->fs_info->sectorsize) + + fs_info->sectorsize) + (dirty_pages << PAGE_SHIFT); btrfs_delalloc_release_space(inode, __pos, release_bytes); @@ -1659,7 +1666,7 @@ again: } release_bytes = round_up(copied + sector_offset, - root->fs_info->sectorsize); + fs_info->sectorsize); if (copied > 0) ret = btrfs_dirty_pages(root, inode, pages, @@ -1680,9 +1687,9 @@ again: if (only_release_metadata && copied > 0) { lockstart = round_down(pos, - root->fs_info->sectorsize); + fs_info->sectorsize); lockend = round_up(pos + copied, - root->fs_info->sectorsize) - 1; + fs_info->sectorsize) - 1; set_extent_bit(&BTRFS_I(inode)->io_tree, lockstart, lockend, EXTENT_NORESERVE, NULL, @@ -1695,7 +1702,7 @@ again: cond_resched(); balance_dirty_pages_ratelimited(inode->i_mapping); - if (dirty_pages < (root->fs_info->nodesize >> PAGE_SHIFT) + 1) + if (dirty_pages < (fs_info->nodesize >> PAGE_SHIFT) + 1) btrfs_btree_balance_dirty(root); pos += copied; @@ -1710,7 +1717,7 @@ again: btrfs_delalloc_release_metadata(inode, release_bytes); } else { btrfs_delalloc_release_space(inode, - round_down(pos, root->fs_info->sectorsize), + round_down(pos, fs_info->sectorsize), release_bytes); } } @@ -1781,6 +1788,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb, { struct file *file = iocb->ki_filp; struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; u64 start_pos; u64 end_pos; @@ -1812,7 +1820,7 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb, * although we have opened a file as writable, we have * to stop this write operation to ensure FS consistency. */ - if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) { + if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) { inode_unlock(inode); err = -EROFS; goto out; @@ -1828,18 +1836,18 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb, pos = iocb->ki_pos; count = iov_iter_count(from); - start_pos = round_down(pos, root->fs_info->sectorsize); + start_pos = round_down(pos, fs_info->sectorsize); oldsize = i_size_read(inode); if (start_pos > oldsize) { /* Expand hole size to cover write data, preventing empty gap */ end_pos = round_up(pos + count, - root->fs_info->sectorsize); + fs_info->sectorsize); err = btrfs_cont_expand(inode, oldsize, end_pos); if (err) { inode_unlock(inode); goto out; } - if (start_pos > round_up(oldsize, root->fs_info->sectorsize)) + if (start_pos > round_up(oldsize, fs_info->sectorsize)) clean_page = 1; } @@ -1919,6 +1927,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) { struct dentry *dentry = file_dentry(file); struct inode *inode = d_inode(dentry); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_trans_handle *trans; struct btrfs_log_ctx ctx; @@ -2029,12 +2038,12 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) * commit does not start nor waits for ordered extents to complete. */ smp_mb(); - if (btrfs_inode_in_log(inode, root->fs_info->generation) || + if (btrfs_inode_in_log(inode, fs_info->generation) || (full_sync && BTRFS_I(inode)->last_trans <= - root->fs_info->last_trans_committed) || + fs_info->last_trans_committed) || (!btrfs_have_ordered_extents_in_range(inode, start, len) && BTRFS_I(inode)->last_trans - <= root->fs_info->last_trans_committed)) { + <= fs_info->last_trans_committed)) { /* * We've had everything committed since the last time we were * modified so clear this flag in case it was set for whatever @@ -2184,6 +2193,7 @@ static int hole_mergeable(struct inode *inode, struct extent_buffer *leaf, static int fill_holes(struct btrfs_trans_handle *trans, struct inode *inode, struct btrfs_path *path, u64 offset, u64 end) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct extent_buffer *leaf; struct btrfs_file_extent_item *fi; @@ -2192,7 +2202,7 @@ static int fill_holes(struct btrfs_trans_handle *trans, struct inode *inode, struct btrfs_key key; int ret; - if (btrfs_fs_incompat(root->fs_info, NO_HOLES)) + if (btrfs_fs_incompat(fs_info, NO_HOLES)) goto out; key.objectid = btrfs_ino(inode); @@ -2224,7 +2234,7 @@ static int fill_holes(struct btrfs_trans_handle *trans, struct inode *inode, u64 num_bytes; key.offset = offset; - btrfs_set_item_key_safe(root->fs_info, path, &key); + btrfs_set_item_key_safe(fs_info, path, &key); fi = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_file_extent_item); num_bytes = btrfs_file_extent_num_bytes(leaf, fi) + end - @@ -2260,7 +2270,7 @@ out: hole_em->block_start = EXTENT_MAP_HOLE; hole_em->block_len = 0; hole_em->orig_block_len = 0; - hole_em->bdev = root->fs_info->fs_devices->latest_bdev; + hole_em->bdev = fs_info->fs_devices->latest_bdev; hole_em->compress_type = BTRFS_COMPRESS_NONE; hole_em->generation = trans->transid; @@ -2312,6 +2322,7 @@ static int find_first_non_hole(struct inode *inode, u64 *start, u64 *len) static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct extent_state *cached_state = NULL; struct btrfs_path *path; @@ -2323,13 +2334,13 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) u64 tail_len; u64 orig_start = offset; u64 cur_offset; - u64 min_size = btrfs_calc_trunc_metadata_size(root->fs_info, 1); + u64 min_size = btrfs_calc_trunc_metadata_size(fs_info, 1); u64 drop_end; int ret = 0; int err = 0; unsigned int rsv_count; bool same_block; - bool no_holes = btrfs_fs_incompat(root->fs_info, NO_HOLES); + bool no_holes = btrfs_fs_incompat(fs_info, NO_HOLES); u64 ino_size; bool truncated_block = false; bool updated_inode = false; @@ -2339,7 +2350,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) return ret; inode_lock(inode); - ino_size = round_up(inode->i_size, root->fs_info->sectorsize); + ino_size = round_up(inode->i_size, fs_info->sectorsize); ret = find_first_non_hole(inode, &offset, &len); if (ret < 0) goto out_only_mutex; @@ -2352,8 +2363,8 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) lockstart = round_up(offset, btrfs_inode_sectorsize(inode)); lockend = round_down(offset + len, btrfs_inode_sectorsize(inode)) - 1; - same_block = (BTRFS_BYTES_TO_BLKS(root->fs_info, offset)) - == (BTRFS_BYTES_TO_BLKS(root->fs_info, offset + len - 1)); + same_block = (BTRFS_BYTES_TO_BLKS(fs_info, offset)) + == (BTRFS_BYTES_TO_BLKS(fs_info, offset + len - 1)); /* * We needn't truncate any block which is beyond the end of the file * because we are sure there is no data there. @@ -2362,7 +2373,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) * Only do this if we are in the same block and we aren't doing the * entire block. */ - if (same_block && len < root->fs_info->sectorsize) { + if (same_block && len < fs_info->sectorsize) { if (offset < ino_size) { truncated_block = true; ret = btrfs_truncate_block(inode, offset, len, 0); @@ -2470,7 +2481,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) ret = -ENOMEM; goto out_free; } - rsv->size = btrfs_calc_trunc_metadata_size(root->fs_info, 1); + rsv->size = btrfs_calc_trunc_metadata_size(fs_info, 1); rsv->failfast = 1; /* @@ -2485,7 +2496,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) goto out_free; } - ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, rsv, + ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv, rsv, min_size); BUG_ON(ret); trans->block_rsv = rsv; @@ -2499,7 +2510,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) if (ret != -ENOSPC) break; - trans->block_rsv = &root->fs_info->trans_block_rsv; + trans->block_rsv = &fs_info->trans_block_rsv; if (cur_offset < ino_size) { ret = fill_holes(trans, inode, path, cur_offset, @@ -2528,7 +2539,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) break; } - ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, + ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv, rsv, min_size); BUG_ON(ret); /* shouldn't happen */ trans->block_rsv = rsv; @@ -2547,7 +2558,7 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len) goto out_trans; } - trans->block_rsv = &root->fs_info->trans_block_rsv; + trans->block_rsv = &fs_info->trans_block_rsv; /* * If we are using the NO_HOLES feature we might have had already an * hole that overlaps a part of the region [lockstart, lockend] and @@ -2581,7 +2592,7 @@ out_trans: inode_inc_iversion(inode); inode->i_mtime = inode->i_ctime = current_fs_time(inode->i_sb); - trans->block_rsv = &root->fs_info->trans_block_rsv; + trans->block_rsv = &fs_info->trans_block_rsv; ret = btrfs_update_inode(trans, root, inode); updated_inode = true; btrfs_end_transaction(trans, root); @@ -2863,7 +2874,7 @@ out: static int find_desired_extent(struct inode *inode, loff_t *offset, int whence) { - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct extent_map *em = NULL; struct extent_state *cached_state = NULL; u64 lockstart; @@ -2881,11 +2892,11 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int whence) */ start = max_t(loff_t, 0, *offset); - lockstart = round_down(start, root->fs_info->sectorsize); + lockstart = round_down(start, fs_info->sectorsize); lockend = round_up(i_size_read(inode), - root->fs_info->sectorsize); + fs_info->sectorsize); if (lockend <= lockstart) - lockend = lockstart + root->fs_info->sectorsize; + lockend = lockstart + fs_info->sectorsize; lockend--; len = lockend - lockstart + 1; diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index b194c09195d4..d5661c5df9fc 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -47,6 +47,7 @@ static struct inode *__lookup_free_space_inode(struct btrfs_root *root, struct btrfs_path *path, u64 offset) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_key key; struct btrfs_key location; struct btrfs_disk_key disk_key; @@ -74,7 +75,7 @@ static struct inode *__lookup_free_space_inode(struct btrfs_root *root, btrfs_disk_key_to_cpu(&location, &disk_key); btrfs_release_path(path); - inode = btrfs_iget(root->fs_info->sb, &location, root, NULL); + inode = btrfs_iget(fs_info->sb, &location, root, NULL); if (!inode) return ERR_PTR(-ENOENT); if (IS_ERR(inode)) @@ -96,6 +97,7 @@ struct inode *lookup_free_space_inode(struct btrfs_root *root, *block_group, struct btrfs_path *path) { struct inode *inode = NULL; + struct btrfs_fs_info *fs_info = root->fs_info; u32 flags = BTRFS_INODE_NODATASUM | BTRFS_INODE_NODATACOW; spin_lock(&block_group->lock); @@ -112,8 +114,7 @@ struct inode *lookup_free_space_inode(struct btrfs_root *root, spin_lock(&block_group->lock); if (!((BTRFS_I(inode)->flags & flags) == flags)) { - btrfs_info(root->fs_info, - "Old style space inode found, converting."); + btrfs_info(fs_info, "Old style space inode found, converting."); BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM | BTRFS_INODE_NODATACOW; block_group->disk_cache_state = BTRFS_DC_CLEAR; @@ -208,12 +209,13 @@ int create_free_space_inode(struct btrfs_root *root, int btrfs_check_trunc_cache_free_space(struct btrfs_root *root, struct btrfs_block_rsv *rsv) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 needed_bytes; int ret; /* 1 for slack space, 1 for updating the inode */ - needed_bytes = btrfs_calc_trunc_metadata_size(root->fs_info, 1) + - btrfs_calc_trans_metadata_size(root->fs_info, 1); + needed_bytes = btrfs_calc_trunc_metadata_size(fs_info, 1) + + btrfs_calc_trans_metadata_size(fs_info, 1); spin_lock(&rsv->lock); if (rsv->reserved < needed_bytes) @@ -669,6 +671,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode, struct btrfs_free_space_ctl *ctl, struct btrfs_path *path, u64 offset) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_free_space_header *header; struct extent_buffer *leaf; struct btrfs_io_ctl io_ctl; @@ -708,14 +711,14 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode, btrfs_release_path(path); if (!BTRFS_I(inode)->generation) { - btrfs_info(root->fs_info, + btrfs_info(fs_info, "The free space cache file (%llu) is invalid. skip it\n", offset); return 0; } if (BTRFS_I(inode)->generation != generation) { - btrfs_err(root->fs_info, + btrfs_err(fs_info, "free space inode generation (%llu) " "did not match free space cache generation (%llu)", BTRFS_I(inode)->generation, generation); @@ -767,7 +770,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode, ret = link_free_space(ctl, e); spin_unlock(&ctl->tree_lock); if (ret) { - btrfs_err(root->fs_info, + btrfs_err(fs_info, "Duplicate entries in free space cache, dumping"); kmem_cache_free(btrfs_free_space_cachep, e); goto free_cache; @@ -787,7 +790,7 @@ static int __load_free_space_cache(struct btrfs_root *root, struct inode *inode, ctl->op->recalc_thresholds(ctl); spin_unlock(&ctl->tree_lock); if (ret) { - btrfs_err(root->fs_info, + btrfs_err(fs_info, "Duplicate entries in free space cache, dumping"); kmem_cache_free(btrfs_free_space_cachep, e); goto free_cache; @@ -1037,6 +1040,7 @@ write_pinned_extent_entries(struct btrfs_root *root, struct btrfs_io_ctl *io_ctl, int *entries) { + struct btrfs_fs_info *fs_info; u64 start, extent_start, extent_end, len; struct extent_io_tree *unpin = NULL; int ret; @@ -1044,6 +1048,8 @@ write_pinned_extent_entries(struct btrfs_root *root, if (!block_group) return 0; + fs_info = block_group->fs_info; + /* * We want to add any pinned extents to our free space cache * so we don't leak the space @@ -1051,7 +1057,7 @@ write_pinned_extent_entries(struct btrfs_root *root, * We shouldn't have switched the pinned extents yet so this is the * right one */ - unpin = root->fs_info->pinned_extents; + unpin = fs_info->pinned_extents; start = block_group->key.objectid; @@ -1142,12 +1148,15 @@ int btrfs_wait_cache_io(struct btrfs_root *root, { int ret; struct inode *inode = io_ctl->inode; + struct btrfs_fs_info *fs_info; if (!inode) return 0; + fs_info = btrfs_sb(inode->i_sb); + if (block_group) - root = root->fs_info->tree_root; + root = fs_info->tree_root; /* Flush the dirty pages in the cache file. */ ret = flush_dirty_cache(inode); @@ -1164,9 +1173,9 @@ out: BTRFS_I(inode)->generation = 0; if (block_group) { #ifdef DEBUG - btrfs_err(root->fs_info, - "failed to write free space cache for block group %llu", - block_group->key.objectid); + btrfs_err(fs_info, + "failed to write free space cache for block group %llu", + block_group->key.objectid); #endif } } @@ -1377,9 +1386,9 @@ int btrfs_write_out_cache(struct btrfs_fs_info *fs_info, path, block_group->key.objectid); if (ret) { #ifdef DEBUG - btrfs_err(root->fs_info, - "failed to write free space cache for block group %llu", - block_group->key.objectid); + btrfs_err(fs_info, + "failed to write free space cache for block group %llu", + block_group->key.objectid); #endif spin_lock(&block_group->lock); block_group->disk_cache_state = BTRFS_DC_ERROR; @@ -1966,11 +1975,11 @@ static bool use_bitmap(struct btrfs_free_space_ctl *ctl, struct btrfs_free_space *info) { struct btrfs_block_group_cache *block_group = ctl->private; + struct btrfs_fs_info *fs_info = block_group->fs_info; bool forced = false; #ifdef CONFIG_BTRFS_DEBUG - if (btrfs_should_fragment_free_space(block_group->fs_info->extent_root, - block_group)) + if (btrfs_should_fragment_free_space(fs_info->extent_root, block_group)) forced = true; #endif @@ -1986,7 +1995,7 @@ static bool use_bitmap(struct btrfs_free_space_ctl *ctl, * of cache left then go ahead an dadd them, no sense in adding * the overhead of a bitmap if we don't have to. */ - if (info->bytes <= block_group->fs_info->sectorsize * 4) { + if (info->bytes <= fs_info->sectorsize * 4) { if (ctl->free_extents * 2 <= ctl->extents_thresh) return false; } else { @@ -2444,6 +2453,7 @@ out: void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group, u64 bytes) { + struct btrfs_fs_info *fs_info = block_group->fs_info; struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl; struct btrfs_free_space *info; struct rb_node *n; @@ -2453,23 +2463,23 @@ void btrfs_dump_free_space(struct btrfs_block_group_cache *block_group, info = rb_entry(n, struct btrfs_free_space, offset_index); if (info->bytes >= bytes && !block_group->ro) count++; - btrfs_crit(block_group->fs_info, - "entry offset %llu, bytes %llu, bitmap %s", + btrfs_crit(fs_info, "entry offset %llu, bytes %llu, bitmap %s", info->offset, info->bytes, (info->bitmap) ? "yes" : "no"); } - btrfs_info(block_group->fs_info, "block group has cluster?: %s", + btrfs_info(fs_info, "block group has cluster?: %s", list_empty(&block_group->cluster_list) ? "no" : "yes"); - btrfs_info(block_group->fs_info, + btrfs_info(fs_info, "%d blocks of free space at or bigger than bytes is", count); } void btrfs_init_free_space_ctl(struct btrfs_block_group_cache *block_group) { + struct btrfs_fs_info *fs_info = block_group->fs_info; struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl; spin_lock_init(&ctl->tree_lock); - ctl->unit = block_group->fs_info->sectorsize; + ctl->unit = fs_info->sectorsize; ctl->start = block_group->key.objectid; ctl->private = block_group; ctl->op = &free_space_op; @@ -3013,6 +3023,7 @@ int btrfs_find_space_cluster(struct btrfs_root *root, u64 offset, u64 bytes, u64 empty_size) { struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl; + struct btrfs_fs_info *fs_info = block_group->fs_info; struct btrfs_free_space *entry, *tmp; LIST_HEAD(bitmaps); u64 min_bytes; @@ -3025,14 +3036,14 @@ int btrfs_find_space_cluster(struct btrfs_root *root, * For metadata, allow allocates with smaller extents. For * data, keep it dense. */ - if (btrfs_test_opt(root->fs_info, SSD_SPREAD)) { + if (btrfs_test_opt(fs_info, SSD_SPREAD)) { cont1_bytes = min_bytes = bytes + empty_size; } else if (block_group->flags & BTRFS_BLOCK_GROUP_METADATA) { cont1_bytes = bytes; - min_bytes = block_group->fs_info->sectorsize; + min_bytes = fs_info->sectorsize; } else { cont1_bytes = max(bytes, (bytes + empty_size) >> 2); - min_bytes = block_group->fs_info->sectorsize; + min_bytes = fs_info->sectorsize; } spin_lock(&ctl->tree_lock); @@ -3317,6 +3328,7 @@ void btrfs_get_block_group_trimming(struct btrfs_block_group_cache *cache) void btrfs_put_block_group_trimming(struct btrfs_block_group_cache *block_group) { + struct btrfs_fs_info *fs_info = block_group->fs_info; struct extent_map_tree *em_tree; struct extent_map *em; bool cleanup; @@ -3327,8 +3339,8 @@ void btrfs_put_block_group_trimming(struct btrfs_block_group_cache *block_group) spin_unlock(&block_group->lock); if (cleanup) { - lock_chunks(block_group->fs_info); - em_tree = &block_group->fs_info->mapping_tree.map_tree; + lock_chunks(fs_info); + em_tree = &fs_info->mapping_tree.map_tree; write_lock(&em_tree->lock); em = lookup_extent_mapping(em_tree, block_group->key.objectid, 1); @@ -3339,7 +3351,7 @@ void btrfs_put_block_group_trimming(struct btrfs_block_group_cache *block_group) */ remove_extent_mapping(em_tree, em); write_unlock(&em_tree->lock); - unlock_chunks(block_group->fs_info); + unlock_chunks(fs_info); /* once for us and once for the tree */ free_extent_map(em); @@ -3469,7 +3481,7 @@ int load_free_ino_cache(struct btrfs_fs_info *fs_info, struct btrfs_root *root) int ret = 0; u64 root_gen = btrfs_root_generation(&root->root_item); - if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) + if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE)) return 0; /* @@ -3508,12 +3520,13 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root, struct btrfs_path *path, struct inode *inode) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_free_space_ctl *ctl = root->free_ino_ctl; int ret; struct btrfs_io_ctl io_ctl; bool release_metadata = true; - if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) + if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE)) return 0; memset(&io_ctl, 0, sizeof(io_ctl)); @@ -3534,9 +3547,9 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root, if (release_metadata) btrfs_delalloc_release_metadata(inode, inode->i_size); #ifdef DEBUG - btrfs_err(root->fs_info, - "failed to write free ino cache for root %llu", - root->root_key.objectid); + btrfs_err(fs_info, + "failed to write free ino cache for root %llu", + root->root_key.objectid); #endif } diff --git a/fs/btrfs/free-space-tree.c b/fs/btrfs/free-space-tree.c index e935356d0fc3..58daa0e93d1c 100644 --- a/fs/btrfs/free-space-tree.c +++ b/fs/btrfs/free-space-tree.c @@ -190,7 +190,7 @@ int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans, int ret; bitmap_size = free_space_bitmap_size(block_group->key.offset, - block_group->fs_info->sectorsize); + fs_info->sectorsize); bitmap = alloc_bitmap(bitmap_size); if (!bitmap) { ret = -ENOMEM; @@ -228,9 +228,9 @@ int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans, ASSERT(found_key.objectid + found_key.offset <= end); first = div_u64(found_key.objectid - start, - block_group->fs_info->sectorsize); + fs_info->sectorsize); last = div_u64(found_key.objectid + found_key.offset - start, - block_group->fs_info->sectorsize); + fs_info->sectorsize); bitmap_set(bitmap, first, last - first); extent_count++; @@ -270,7 +270,7 @@ int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans, } bitmap_cursor = (char *)bitmap; - bitmap_range = block_group->fs_info->sectorsize * BTRFS_FREE_SPACE_BITMAP_BITS; + bitmap_range = fs_info->sectorsize * BTRFS_FREE_SPACE_BITMAP_BITS; i = start; while (i < end) { unsigned long ptr; @@ -279,7 +279,7 @@ int convert_free_space_to_bitmaps(struct btrfs_trans_handle *trans, extent_size = min(end - i, bitmap_range); data_size = free_space_bitmap_size(extent_size, - block_group->fs_info->sectorsize); + fs_info->sectorsize); key.objectid = i; key.type = BTRFS_FREE_SPACE_BITMAP_KEY; @@ -330,7 +330,7 @@ int convert_free_space_to_extents(struct btrfs_trans_handle *trans, int ret; bitmap_size = free_space_bitmap_size(block_group->key.offset, - block_group->fs_info->sectorsize); + fs_info->sectorsize); bitmap = alloc_bitmap(bitmap_size); if (!bitmap) { ret = -ENOMEM; @@ -370,11 +370,11 @@ int convert_free_space_to_extents(struct btrfs_trans_handle *trans, ASSERT(found_key.objectid + found_key.offset <= end); bitmap_pos = div_u64(found_key.objectid - start, - block_group->fs_info->sectorsize * + fs_info->sectorsize * BITS_PER_BYTE); bitmap_cursor = ((char *)bitmap) + bitmap_pos; data_size = free_space_bitmap_size(found_key.offset, - block_group->fs_info->sectorsize); + fs_info->sectorsize); ptr = btrfs_item_ptr_offset(leaf, path->slots[0] - 1); read_extent_buffer(leaf, bitmap_cursor, ptr, @@ -425,7 +425,7 @@ int convert_free_space_to_extents(struct btrfs_trans_handle *trans, extent_count++; } prev_bit = bit; - offset += block_group->fs_info->sectorsize; + offset += fs_info->sectorsize; bitnr++; } if (prev_bit == 1) { @@ -525,6 +525,7 @@ static void free_space_set_bits(struct btrfs_block_group_cache *block_group, struct btrfs_path *path, u64 *start, u64 *size, int bit) { + struct btrfs_fs_info *fs_info = block_group->fs_info; struct extent_buffer *leaf; struct btrfs_key key; u64 end = *start + *size; @@ -544,10 +545,8 @@ static void free_space_set_bits(struct btrfs_block_group_cache *block_group, end = found_end; ptr = btrfs_item_ptr_offset(leaf, path->slots[0]); - first = div_u64(*start - found_start, - block_group->fs_info->sectorsize); - last = div_u64(end - found_start, - block_group->fs_info->sectorsize); + first = div_u64(*start - found_start, fs_info->sectorsize); + last = div_u64(end - found_start, fs_info->sectorsize); if (bit) extent_buffer_bitmap_set(leaf, ptr, first, last - first); else @@ -1267,7 +1266,7 @@ int btrfs_clear_free_space_tree(struct btrfs_fs_info *fs_info) list_del(&free_space_root->dirty_list); btrfs_tree_lock(free_space_root->node); - clean_tree_block(trans, tree_root->fs_info, free_space_root->node); + clean_tree_block(trans, fs_info, free_space_root->node); btrfs_tree_unlock(free_space_root->node); btrfs_free_tree_block(trans, free_space_root, free_space_root->node, 0, 1); @@ -1473,7 +1472,7 @@ static int load_free_space_bitmaps(struct btrfs_caching_control *caching_ctl, extent_count++; } prev_bit = bit; - offset += block_group->fs_info->sectorsize; + offset += fs_info->sectorsize; } } if (prev_bit == 1) { diff --git a/fs/btrfs/inode-item.c b/fs/btrfs/inode-item.c index b8acc07ac6c2..47270a3c9649 100644 --- a/fs/btrfs/inode-item.c +++ b/fs/btrfs/inode-item.c @@ -328,6 +328,7 @@ int btrfs_insert_inode_ref(struct btrfs_trans_handle *trans, const char *name, int name_len, u64 inode_objectid, u64 ref_objectid, u64 index) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct btrfs_key key; struct btrfs_inode_ref *ref; @@ -384,7 +385,7 @@ out: btrfs_free_path(path); if (ret == -EMLINK) { - struct btrfs_super_block *disk_super = root->fs_info->super_copy; + struct btrfs_super_block *disk_super = fs_info->super_copy; /* We ran out of space in the ref array. Need to * add an extended ref. */ if (btrfs_super_incompat_flags(disk_super) diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c index a24a0ca6a9c1..7b1dd9f07460 100644 --- a/fs/btrfs/inode-map.c +++ b/fs/btrfs/inode-map.c @@ -38,7 +38,7 @@ static int caching_kthread(void *data) int slot; int ret; - if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) + if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE)) return 0; path = btrfs_alloc_path(); @@ -136,12 +136,13 @@ out: static void start_caching(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_free_space_ctl *ctl = root->free_ino_ctl; struct task_struct *tsk; int ret; u64 objectid; - if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) + if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE)) return; spin_lock(&root->ino_cache_lock); @@ -153,7 +154,7 @@ static void start_caching(struct btrfs_root *root) root->ino_cache_state = BTRFS_CACHE_STARTED; spin_unlock(&root->ino_cache_lock); - ret = load_free_ino_cache(root->fs_info, root); + ret = load_free_ino_cache(fs_info, root); if (ret == 1) { spin_lock(&root->ino_cache_lock); root->ino_cache_state = BTRFS_CACHE_FINISHED; @@ -177,9 +178,9 @@ static void start_caching(struct btrfs_root *root) tsk = kthread_run(caching_kthread, root, "btrfs-ino-cache-%llu", root->root_key.objectid); if (IS_ERR(tsk)) { - btrfs_warn(root->fs_info, "failed to start inode caching task"); - btrfs_clear_pending_and_info(root->fs_info, INODE_MAP_CACHE, - "disabling inode map caching"); + btrfs_warn(fs_info, "failed to start inode caching task"); + btrfs_clear_pending_and_info(fs_info, INODE_MAP_CACHE, + "disabling inode map caching"); } } @@ -209,19 +210,20 @@ again: void btrfs_return_ino(struct btrfs_root *root, u64 objectid) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_free_space_ctl *pinned = root->free_ino_pinned; - if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) + if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE)) return; again: if (root->ino_cache_state == BTRFS_CACHE_FINISHED) { __btrfs_add_free_space(pinned, objectid, 1); } else { - down_write(&root->fs_info->commit_root_sem); + down_write(&fs_info->commit_root_sem); spin_lock(&root->ino_cache_lock); if (root->ino_cache_state == BTRFS_CACHE_FINISHED) { spin_unlock(&root->ino_cache_lock); - up_write(&root->fs_info->commit_root_sem); + up_write(&fs_info->commit_root_sem); goto again; } spin_unlock(&root->ino_cache_lock); @@ -230,7 +232,7 @@ again: __btrfs_add_free_space(pinned, objectid, 1); - up_write(&root->fs_info->commit_root_sem); + up_write(&fs_info->commit_root_sem); } } @@ -392,6 +394,7 @@ void btrfs_init_free_ino_ctl(struct btrfs_root *root) int btrfs_save_ino_cache(struct btrfs_root *root, struct btrfs_trans_handle *trans) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_free_space_ctl *ctl = root->free_ino_ctl; struct btrfs_path *path; struct inode *inode; @@ -412,7 +415,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root, if (btrfs_root_refs(&root->root_item) == 0) return 0; - if (!btrfs_test_opt(root->fs_info, INODE_MAP_CACHE)) + if (!btrfs_test_opt(fs_info, INODE_MAP_CACHE)) return 0; path = btrfs_alloc_path(); @@ -420,7 +423,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root, return -ENOMEM; rsv = trans->block_rsv; - trans->block_rsv = &root->fs_info->trans_block_rsv; + trans->block_rsv = &fs_info->trans_block_rsv; num_bytes = trans->bytes_reserved; /* @@ -430,15 +433,14 @@ int btrfs_save_ino_cache(struct btrfs_root *root, * 1 item for free space object * 3 items for pre-allocation */ - trans->bytes_reserved = btrfs_calc_trans_metadata_size(root->fs_info, - 10); + trans->bytes_reserved = btrfs_calc_trans_metadata_size(fs_info, 10); ret = btrfs_block_rsv_add(root, trans->block_rsv, trans->bytes_reserved, BTRFS_RESERVE_NO_FLUSH); if (ret) goto out; - trace_btrfs_space_reservation(root->fs_info, "ino_cache", - trans->transid, trans->bytes_reserved, 1); + trace_btrfs_space_reservation(fs_info, "ino_cache", trans->transid, + trans->bytes_reserved, 1); again: inode = lookup_free_ino_inode(root, path); if (IS_ERR(inode) && (PTR_ERR(inode) != -ENOENT || retry)) { @@ -505,8 +507,8 @@ again: out_put: iput(inode); out_release: - trace_btrfs_space_reservation(root->fs_info, "ino_cache", - trans->transid, trans->bytes_reserved, 0); + trace_btrfs_space_reservation(fs_info, "ino_cache", trans->transid, + trans->bytes_reserved, 0); btrfs_block_rsv_release(root, trans->block_rsv, trans->bytes_reserved); out: trans->block_rsv = rsv; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index f1e2accac21d..7e0be678792a 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -248,11 +248,12 @@ static noinline int cow_file_range_inline(struct btrfs_root *root, int compress_type, struct page **compressed_pages) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_trans_handle *trans; u64 isize = i_size_read(inode); u64 actual_end = min(end + 1, isize); u64 inline_len = actual_end - start; - u64 aligned_end = ALIGN(end, root->fs_info->sectorsize); + u64 aligned_end = ALIGN(end, fs_info->sectorsize); u64 data_len = inline_len; int ret; struct btrfs_path *path; @@ -263,12 +264,12 @@ static noinline int cow_file_range_inline(struct btrfs_root *root, data_len = compressed_size; if (start > 0 || - actual_end > root->fs_info->sectorsize || - data_len > BTRFS_MAX_INLINE_DATA_SIZE(root->fs_info) || + actual_end > fs_info->sectorsize || + data_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info) || (!compressed_size && - (actual_end & (root->fs_info->sectorsize - 1)) == 0) || + (actual_end & (fs_info->sectorsize - 1)) == 0) || end + 1 < isize || - data_len > root->fs_info->max_inline) { + data_len > fs_info->max_inline) { return 1; } @@ -281,7 +282,7 @@ static noinline int cow_file_range_inline(struct btrfs_root *root, btrfs_free_path(path); return PTR_ERR(trans); } - trans->block_rsv = &root->fs_info->delalloc_block_rsv; + trans->block_rsv = &fs_info->delalloc_block_rsv; if (compressed_size && compressed_pages) extent_item_size = btrfs_file_extent_calc_inline_size( @@ -371,15 +372,15 @@ static noinline int add_async_extent(struct async_cow *cow, static inline int inode_need_compress(struct inode *inode) { - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); /* force compress */ - if (btrfs_test_opt(root->fs_info, FORCE_COMPRESS)) + if (btrfs_test_opt(fs_info, FORCE_COMPRESS)) return 1; /* bad compression ratios */ if (BTRFS_I(inode)->flags & BTRFS_INODE_NOCOMPRESS) return 0; - if (btrfs_test_opt(root->fs_info, COMPRESS) || + if (btrfs_test_opt(fs_info, COMPRESS) || BTRFS_I(inode)->flags & BTRFS_INODE_COMPRESS || BTRFS_I(inode)->force_compress) return 1; @@ -409,9 +410,10 @@ static noinline void compress_file_range(struct inode *inode, struct async_cow *async_cow, int *num_added) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; u64 num_bytes; - u64 blocksize = root->fs_info->sectorsize; + u64 blocksize = fs_info->sectorsize; u64 actual_end; u64 isize = i_size_read(inode); int ret = 0; @@ -424,7 +426,7 @@ static noinline void compress_file_range(struct inode *inode, unsigned long max_uncompressed = SZ_128K; int i; int will_compress; - int compress_type = root->fs_info->compress_type; + int compress_type = fs_info->compress_type; int redirty = 0; /* if this is a small write inside eof, kick off a defrag */ @@ -602,7 +604,7 @@ cont: nr_pages_ret = 0; /* flag the file so we don't compress in the future */ - if (!btrfs_test_opt(root->fs_info, FORCE_COMPRESS) && + if (!btrfs_test_opt(fs_info, FORCE_COMPRESS) && !(BTRFS_I(inode)->force_compress)) { BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS; } @@ -680,6 +682,7 @@ static void free_async_extent_pages(struct async_extent *async_extent) static noinline void submit_compressed_extents(struct inode *inode, struct async_cow *async_cow) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct async_extent *async_extent; u64 alloc_hint = 0; struct btrfs_key ins; @@ -789,7 +792,7 @@ retry: em->block_len = ins.offset; em->orig_block_len = ins.offset; em->ram_bytes = async_extent->ram_size; - em->bdev = root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; em->compress_type = async_extent->compress_type; set_bit(EXTENT_FLAG_PINNED, &em->flags); set_bit(EXTENT_FLAG_COMPRESSED, &em->flags); @@ -824,7 +827,7 @@ retry: async_extent->ram_size - 1, 0); goto out_free_reserve; } - btrfs_dec_block_group_reservations(root->fs_info, ins.objectid); + btrfs_dec_block_group_reservations(fs_info, ins.objectid); /* * clear dirty, set writeback and unlock the pages. @@ -862,7 +865,7 @@ retry: } return; out_free_reserve: - btrfs_dec_block_group_reservations(root->fs_info, ins.objectid); + btrfs_dec_block_group_reservations(fs_info, ins.objectid); btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1); out_free: extent_clear_unlock_delalloc(inode, async_extent->start, @@ -929,13 +932,14 @@ static noinline int cow_file_range(struct inode *inode, unsigned long *nr_written, int unlock) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; u64 alloc_hint = 0; u64 num_bytes; unsigned long ram_size; u64 disk_num_bytes; u64 cur_alloc_size; - u64 blocksize = root->fs_info->sectorsize; + u64 blocksize = fs_info->sectorsize; struct btrfs_key ins; struct extent_map *em; struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree; @@ -977,7 +981,7 @@ static noinline int cow_file_range(struct inode *inode, } BUG_ON(disk_num_bytes > - btrfs_super_total_bytes(root->fs_info->super_copy)); + btrfs_super_total_bytes(fs_info->super_copy)); alloc_hint = get_extent_allocation_hint(inode, start, num_bytes); btrfs_drop_extent_cache(inode, start, start + num_bytes - 1, 0); @@ -987,7 +991,7 @@ static noinline int cow_file_range(struct inode *inode, cur_alloc_size = disk_num_bytes; ret = btrfs_reserve_extent(root, cur_alloc_size, - root->fs_info->sectorsize, 0, + fs_info->sectorsize, 0, alloc_hint, &ins, 1, 1); if (ret < 0) @@ -1009,7 +1013,7 @@ static noinline int cow_file_range(struct inode *inode, em->block_len = ins.offset; em->orig_block_len = ins.offset; em->ram_bytes = ram_size; - em->bdev = root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; set_bit(EXTENT_FLAG_PINNED, &em->flags); em->generation = -1; @@ -1041,7 +1045,7 @@ static noinline int cow_file_range(struct inode *inode, goto out_drop_extent_cache; } - btrfs_dec_block_group_reservations(root->fs_info, ins.objectid); + btrfs_dec_block_group_reservations(fs_info, ins.objectid); if (disk_num_bytes < cur_alloc_size) break; @@ -1071,7 +1075,7 @@ out: out_drop_extent_cache: btrfs_drop_extent_cache(inode, start, start + ram_size - 1, 0); out_reserve: - btrfs_dec_block_group_reservations(root->fs_info, ins.objectid); + btrfs_dec_block_group_reservations(fs_info, ins.objectid); btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1); out_unlock: extent_clear_unlock_delalloc(inode, start, end, locked_page, @@ -1105,6 +1109,7 @@ static noinline void async_cow_start(struct btrfs_work *work) */ static noinline void async_cow_submit(struct btrfs_work *work) { + struct btrfs_fs_info *fs_info; struct async_cow *async_cow; struct btrfs_root *root; unsigned long nr_pages; @@ -1112,16 +1117,17 @@ static noinline void async_cow_submit(struct btrfs_work *work) async_cow = container_of(work, struct async_cow, work); root = async_cow->root; + fs_info = root->fs_info; nr_pages = (async_cow->end - async_cow->start + PAGE_SIZE) >> PAGE_SHIFT; /* * atomic_sub_return implies a barrier for waitqueue_active */ - if (atomic_sub_return(nr_pages, &root->fs_info->async_delalloc_pages) < + if (atomic_sub_return(nr_pages, &fs_info->async_delalloc_pages) < 5 * SZ_1M && - waitqueue_active(&root->fs_info->async_submit_wait)) - wake_up(&root->fs_info->async_submit_wait); + waitqueue_active(&fs_info->async_submit_wait)) + wake_up(&fs_info->async_submit_wait); if (async_cow->inode) submit_compressed_extents(async_cow->inode, async_cow); @@ -1140,6 +1146,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, u64 start, u64 end, int *page_started, unsigned long *nr_written) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct async_cow *async_cow; struct btrfs_root *root = BTRFS_I(inode)->root; unsigned long nr_pages; @@ -1157,7 +1164,7 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, async_cow->start = start; if (BTRFS_I(inode)->flags & BTRFS_INODE_NOCOMPRESS && - !btrfs_test_opt(root->fs_info, FORCE_COMPRESS)) + !btrfs_test_opt(fs_info, FORCE_COMPRESS)) cur_end = end; else cur_end = min(end, start + SZ_512K - 1); @@ -1172,22 +1179,21 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, nr_pages = (cur_end - start + PAGE_SIZE) >> PAGE_SHIFT; - atomic_add(nr_pages, &root->fs_info->async_delalloc_pages); + atomic_add(nr_pages, &fs_info->async_delalloc_pages); - btrfs_queue_work(root->fs_info->delalloc_workers, - &async_cow->work); + btrfs_queue_work(fs_info->delalloc_workers, &async_cow->work); - if (atomic_read(&root->fs_info->async_delalloc_pages) > limit) { - wait_event(root->fs_info->async_submit_wait, - (atomic_read(&root->fs_info->async_delalloc_pages) < - limit)); + if (atomic_read(&fs_info->async_delalloc_pages) > limit) { + wait_event(fs_info->async_submit_wait, + (atomic_read(&fs_info->async_delalloc_pages) < + limit)); } - while (atomic_read(&root->fs_info->async_submit_draining) && - atomic_read(&root->fs_info->async_delalloc_pages)) { - wait_event(root->fs_info->async_submit_wait, - (atomic_read(&root->fs_info->async_delalloc_pages) == - 0)); + while (atomic_read(&fs_info->async_submit_draining) && + atomic_read(&fs_info->async_delalloc_pages)) { + wait_event(fs_info->async_submit_wait, + (atomic_read(&fs_info->async_delalloc_pages) == + 0)); } *nr_written += nr_pages; @@ -1200,11 +1206,12 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page, static noinline int csum_exist_in_range(struct btrfs_root *root, u64 bytenr, u64 num_bytes) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; struct btrfs_ordered_sum *sums; LIST_HEAD(list); - ret = btrfs_lookup_csums_range(root->fs_info->csum_root, bytenr, + ret = btrfs_lookup_csums_range(fs_info->csum_root, bytenr, bytenr + num_bytes - 1, &list, 0); if (ret == 0 && list_empty(&list)) return 0; @@ -1229,6 +1236,7 @@ static noinline int run_delalloc_nocow(struct inode *inode, u64 start, u64 end, int *page_started, int force, unsigned long *nr_written) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_trans_handle *trans; struct extent_buffer *leaf; @@ -1282,7 +1290,7 @@ static noinline int run_delalloc_nocow(struct inode *inode, return PTR_ERR(trans); } - trans->block_rsv = &root->fs_info->delalloc_block_rsv; + trans->block_rsv = &fs_info->delalloc_block_rsv; cow_start = (u64)-1; cur_offset = start; @@ -1383,8 +1391,7 @@ next_slot: */ if (csum_exist_in_range(root, disk_bytenr, num_bytes)) goto out_check; - if (!btrfs_inc_nocow_writers(root->fs_info, - disk_bytenr)) + if (!btrfs_inc_nocow_writers(fs_info, disk_bytenr)) goto out_check; nocow = 1; } else if (extent_type == BTRFS_FILE_EXTENT_INLINE) { @@ -1392,7 +1399,7 @@ next_slot: btrfs_file_extent_inline_len(leaf, path->slots[0], fi); extent_end = ALIGN(extent_end, - root->fs_info->sectorsize); + fs_info->sectorsize); } else { BUG_ON(1); } @@ -1402,8 +1409,7 @@ out_check: if (!nolock && nocow) btrfs_end_write_no_snapshoting(root); if (nocow) - btrfs_dec_nocow_writers(root->fs_info, - disk_bytenr); + btrfs_dec_nocow_writers(fs_info, disk_bytenr); goto next_slot; } if (!nocow) { @@ -1425,7 +1431,7 @@ out_check: if (!nolock && nocow) btrfs_end_write_no_snapshoting(root); if (nocow) - btrfs_dec_nocow_writers(root->fs_info, + btrfs_dec_nocow_writers(fs_info, disk_bytenr); goto error; } @@ -1445,7 +1451,7 @@ out_check: em->block_start = disk_bytenr; em->orig_block_len = disk_num_bytes; em->ram_bytes = ram_bytes; - em->bdev = root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; em->mod_start = em->start; em->mod_len = em->len; set_bit(EXTENT_FLAG_PINNED, &em->flags); @@ -1470,7 +1476,7 @@ out_check: ret = btrfs_add_ordered_extent(inode, cur_offset, disk_bytenr, num_bytes, num_bytes, type); if (nocow) - btrfs_dec_nocow_writers(root->fs_info, disk_bytenr); + btrfs_dec_nocow_writers(fs_info, disk_bytenr); BUG_ON(ret); /* -ENOMEM */ if (root->root_key.objectid == @@ -1675,6 +1681,8 @@ static void btrfs_merge_extent_hook(struct inode *inode, static void btrfs_add_delalloc_inodes(struct btrfs_root *root, struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + spin_lock(&root->delalloc_lock); if (list_empty(&BTRFS_I(inode)->delalloc_inodes)) { list_add_tail(&BTRFS_I(inode)->delalloc_inodes, @@ -1683,11 +1691,11 @@ static void btrfs_add_delalloc_inodes(struct btrfs_root *root, &BTRFS_I(inode)->runtime_flags); root->nr_delalloc_inodes++; if (root->nr_delalloc_inodes == 1) { - spin_lock(&root->fs_info->delalloc_root_lock); + spin_lock(&fs_info->delalloc_root_lock); BUG_ON(!list_empty(&root->delalloc_root)); list_add_tail(&root->delalloc_root, - &root->fs_info->delalloc_roots); - spin_unlock(&root->fs_info->delalloc_root_lock); + &fs_info->delalloc_roots); + spin_unlock(&fs_info->delalloc_root_lock); } } spin_unlock(&root->delalloc_lock); @@ -1696,6 +1704,8 @@ static void btrfs_add_delalloc_inodes(struct btrfs_root *root, static void btrfs_del_delalloc_inode(struct btrfs_root *root, struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + spin_lock(&root->delalloc_lock); if (!list_empty(&BTRFS_I(inode)->delalloc_inodes)) { list_del_init(&BTRFS_I(inode)->delalloc_inodes); @@ -1703,10 +1713,10 @@ static void btrfs_del_delalloc_inode(struct btrfs_root *root, &BTRFS_I(inode)->runtime_flags); root->nr_delalloc_inodes--; if (!root->nr_delalloc_inodes) { - spin_lock(&root->fs_info->delalloc_root_lock); + spin_lock(&fs_info->delalloc_root_lock); BUG_ON(list_empty(&root->delalloc_root)); list_del_init(&root->delalloc_root); - spin_unlock(&root->fs_info->delalloc_root_lock); + spin_unlock(&fs_info->delalloc_root_lock); } } spin_unlock(&root->delalloc_lock); @@ -1721,6 +1731,8 @@ static void btrfs_set_bit_hook(struct inode *inode, struct extent_state *state, unsigned *bits) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + if ((*bits & EXTENT_DEFRAG) && !(*bits & EXTENT_DELALLOC)) WARN_ON(1); /* @@ -1742,11 +1754,11 @@ static void btrfs_set_bit_hook(struct inode *inode, } /* For sanity tests */ - if (btrfs_is_testing(root->fs_info)) + if (btrfs_is_testing(fs_info)) return; - __percpu_counter_add(&root->fs_info->delalloc_bytes, len, - root->fs_info->delalloc_batch); + __percpu_counter_add(&fs_info->delalloc_bytes, len, + fs_info->delalloc_batch); spin_lock(&BTRFS_I(inode)->lock); BTRFS_I(inode)->delalloc_bytes += len; if (*bits & EXTENT_DEFRAG) @@ -1765,6 +1777,7 @@ static void btrfs_clear_bit_hook(struct inode *inode, struct extent_state *state, unsigned *bits) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); u64 len = state->end + 1 - state->start; u64 num_extents = div64_u64(len + BTRFS_MAX_EXTENT_SIZE -1, BTRFS_MAX_EXTENT_SIZE); @@ -1797,11 +1810,11 @@ static void btrfs_clear_bit_hook(struct inode *inode, * error. */ if (*bits & EXTENT_DO_ACCOUNTING && - root != root->fs_info->tree_root) + root != fs_info->tree_root) btrfs_delalloc_release_metadata(inode, len); /* For sanity tests. */ - if (btrfs_is_testing(root->fs_info)) + if (btrfs_is_testing(fs_info)) return; if (root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID @@ -1809,8 +1822,8 @@ static void btrfs_clear_bit_hook(struct inode *inode, btrfs_free_reserved_data_space_noquota(inode, state->start, len); - __percpu_counter_add(&root->fs_info->delalloc_bytes, -len, - root->fs_info->delalloc_batch); + __percpu_counter_add(&fs_info->delalloc_bytes, -len, + fs_info->delalloc_batch); spin_lock(&BTRFS_I(inode)->lock); BTRFS_I(inode)->delalloc_bytes -= len; if (do_list && BTRFS_I(inode)->delalloc_bytes == 0 && @@ -1829,7 +1842,8 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset, size_t size, struct bio *bio, unsigned long bio_flags) { - struct btrfs_root *root = BTRFS_I(page->mapping->host)->root; + struct inode *inode = page->mapping->host; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); u64 logical = (u64)bio->bi_iter.bi_sector << 9; u64 length = 0; u64 map_length; @@ -1840,8 +1854,7 @@ int btrfs_merge_bio_hook(int rw, struct page *page, unsigned long offset, length = bio->bi_iter.bi_size; map_length = length; - ret = btrfs_map_block(root->fs_info, rw, logical, - &map_length, NULL, 0); + ret = btrfs_map_block(fs_info, rw, logical, &map_length, NULL, 0); /* Will always return 0 with map_multi == NULL */ BUG_ON(ret < 0); if (map_length < length + size) @@ -1901,6 +1914,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, int mirror_num, unsigned long bio_flags, u64 bio_offset) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; enum btrfs_wq_endio_type metadata = BTRFS_WQ_ENDIO_DATA; int ret = 0; @@ -1913,7 +1927,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, metadata = BTRFS_WQ_ENDIO_FREE_SPACE; if (!(rw & REQ_WRITE)) { - ret = btrfs_bio_wq_end_io(root->fs_info, bio, metadata); + ret = btrfs_bio_wq_end_io(fs_info, bio, metadata); if (ret) goto out; @@ -1933,8 +1947,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, if (root->root_key.objectid == BTRFS_DATA_RELOC_TREE_OBJECTID) goto mapit; /* we're doing a write, do the async checksumming */ - ret = btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info, - inode, rw, bio, mirror_num, + ret = btrfs_wq_submit_bio(fs_info, inode, rw, bio, mirror_num, bio_flags, bio_offset, __btrfs_submit_bio_start, __btrfs_submit_bio_done); @@ -2066,8 +2079,8 @@ out_page: static int btrfs_writepage_start_hook(struct page *page, u64 start, u64 end) { struct inode *inode = page->mapping->host; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_writepage_fixup *fixup; - struct btrfs_root *root = BTRFS_I(inode)->root; /* this page is properly in the ordered list */ if (TestClearPagePrivate2(page)) @@ -2085,7 +2098,7 @@ static int btrfs_writepage_start_hook(struct page *page, u64 start, u64 end) btrfs_init_work(&fixup->work, btrfs_fixup_helper, btrfs_writepage_fixup_worker, NULL, NULL); fixup->page = page; - btrfs_queue_work(root->fs_info->fixup_workers, &fixup->work); + btrfs_queue_work(fs_info->fixup_workers, &fixup->work); return -EBUSY; } @@ -2269,7 +2282,6 @@ static noinline int record_one_backref(u64 inum, u64 offset, u64 root_id, void *ctx) { struct btrfs_file_extent_item *extent; - struct btrfs_fs_info *fs_info; struct old_sa_defrag_extent *old = ctx; struct new_sa_defrag_extent *new = old->new; struct btrfs_path *path = new->path; @@ -2278,6 +2290,7 @@ static noinline int record_one_backref(u64 inum, u64 offset, u64 root_id, struct sa_defrag_extent_backref *backref; struct extent_buffer *leaf; struct inode *inode = new->inode; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); int slot; int ret; u64 extent_offset; @@ -2291,7 +2304,6 @@ static noinline int record_one_backref(u64 inum, u64 offset, u64 root_id, key.type = BTRFS_ROOT_ITEM_KEY; key.offset = (u64)-1; - fs_info = BTRFS_I(inode)->root->fs_info; root = btrfs_read_fs_root_no_name(fs_info, &key); if (IS_ERR(root)) { if (PTR_ERR(root) == -ENOENT) @@ -2389,7 +2401,7 @@ out: static noinline bool record_extent_backrefs(struct btrfs_path *path, struct new_sa_defrag_extent *new) { - struct btrfs_fs_info *fs_info = BTRFS_I(new->inode)->root->fs_info; + struct btrfs_fs_info *fs_info = btrfs_sb(new->inode->i_sb); struct old_sa_defrag_extent *old, *tmp; int ret; @@ -2447,13 +2459,12 @@ static noinline int relink_extent_backref(struct btrfs_path *path, struct btrfs_file_extent_item *item; struct btrfs_ordered_extent *ordered; struct btrfs_trans_handle *trans; - struct btrfs_fs_info *fs_info; struct btrfs_root *root; struct btrfs_key key; struct extent_buffer *leaf; struct old_sa_defrag_extent *old = backref->old; struct new_sa_defrag_extent *new = old->new; - struct inode *src_inode = new->inode; + struct btrfs_fs_info *fs_info = btrfs_sb(new->inode->i_sb); struct inode *inode; struct extent_state *cached = NULL; int ret = 0; @@ -2474,7 +2485,6 @@ static noinline int relink_extent_backref(struct btrfs_path *path, key.type = BTRFS_ROOT_ITEM_KEY; key.offset = (u64)-1; - fs_info = BTRFS_I(src_inode)->root->fs_info; index = srcu_read_lock(&fs_info->subvol_srcu); root = btrfs_read_fs_root_no_name(fs_info, &key); @@ -2655,6 +2665,7 @@ static void free_sa_defrag_extent(struct new_sa_defrag_extent *new) static void relink_file_extents(struct new_sa_defrag_extent *new) { + struct btrfs_fs_info *fs_info = btrfs_sb(new->inode->i_sb); struct btrfs_path *path; struct sa_defrag_extent_backref *backref; struct sa_defrag_extent_backref *prev = NULL; @@ -2701,14 +2712,15 @@ static void relink_file_extents(struct new_sa_defrag_extent *new) out: free_sa_defrag_extent(new); - atomic_dec(&root->fs_info->defrag_running); - wake_up(&root->fs_info->transaction_wait); + atomic_dec(&fs_info->defrag_running); + wake_up(&fs_info->transaction_wait); } static struct new_sa_defrag_extent * record_old_file_extents(struct inode *inode, struct btrfs_ordered_extent *ordered) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_path *path; struct btrfs_key key; @@ -2807,7 +2819,7 @@ next: } btrfs_free_path(path); - atomic_inc(&root->fs_info->defrag_running); + atomic_inc(&fs_info->defrag_running); return new; @@ -2821,9 +2833,10 @@ out_kfree: static void btrfs_release_delalloc_bytes(struct btrfs_root *root, u64 start, u64 len) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_group_cache *cache; - cache = btrfs_lookup_block_group(root->fs_info, start); + cache = btrfs_lookup_block_group(fs_info, start); ASSERT(cache); spin_lock(&cache->lock); @@ -2840,6 +2853,7 @@ static void btrfs_release_delalloc_bytes(struct btrfs_root *root, static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent) { struct inode *inode = ordered_extent->inode; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_trans_handle *trans = NULL; struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; @@ -2890,7 +2904,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent) trans = NULL; goto out; } - trans->block_rsv = &root->fs_info->delalloc_block_rsv; + trans->block_rsv = &fs_info->delalloc_block_rsv; ret = btrfs_update_inode_fallback(trans, root, inode); if (ret) /* -ENOMEM or corruption */ btrfs_abort_transaction(trans, ret); @@ -2925,7 +2939,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent) goto out_unlock; } - trans->block_rsv = &root->fs_info->delalloc_block_rsv; + trans->block_rsv = &fs_info->delalloc_block_rsv; if (test_bit(BTRFS_ORDERED_COMPRESSED, &ordered_extent->flags)) compress_type = ordered_extent->compress_type; @@ -2936,7 +2950,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent) ordered_extent->file_offset + logical_len); } else { - BUG_ON(root == root->fs_info->tree_root); + BUG_ON(root == fs_info->tree_root); ret = insert_reserved_file_extent(trans, inode, ordered_extent->file_offset, ordered_extent->start, @@ -2972,7 +2986,7 @@ out_unlock: ordered_extent->file_offset + ordered_extent->len - 1, &cached_state, GFP_NOFS); out: - if (root != root->fs_info->tree_root) + if (root != fs_info->tree_root) btrfs_delalloc_release_metadata(inode, ordered_extent->len); if (trans) btrfs_end_transaction(trans, root); @@ -3014,7 +3028,7 @@ out: if (new) { if (ret) { free_sa_defrag_extent(new); - atomic_dec(&root->fs_info->defrag_running); + atomic_dec(&fs_info->defrag_running); } else { relink_file_extents(new); } @@ -3039,7 +3053,7 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end, struct extent_state *state, int uptodate) { struct inode *inode = page->mapping->host; - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ordered_extent *ordered_extent = NULL; struct btrfs_workqueue *wq; btrfs_work_func_t func; @@ -3052,10 +3066,10 @@ static int btrfs_writepage_end_io_hook(struct page *page, u64 start, u64 end, return 0; if (btrfs_is_free_space_inode(inode)) { - wq = root->fs_info->endio_freespace_worker; + wq = fs_info->endio_freespace_worker; func = btrfs_freespace_write_helper; } else { - wq = root->fs_info->endio_write_workers; + wq = fs_info->endio_write_workers; func = btrfs_endio_write_helper; } @@ -3132,7 +3146,7 @@ static int btrfs_readpage_end_io_hook(struct btrfs_io_bio *io_bio, void btrfs_add_delayed_iput(struct inode *inode) { - struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_inode *binode = BTRFS_I(inode); if (atomic_add_unless(&inode->i_count, -1, 1)) @@ -3180,6 +3194,7 @@ void btrfs_run_delayed_iputs(struct btrfs_root *root) void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_block_rsv *block_rsv; int ret; @@ -3204,7 +3219,7 @@ void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans, if (test_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state) && btrfs_root_refs(&root->root_item) > 0) { - ret = btrfs_del_orphan_item(trans, root->fs_info->tree_root, + ret = btrfs_del_orphan_item(trans, fs_info->tree_root, root->root_key.objectid); if (ret) btrfs_abort_transaction(trans, ret); @@ -3228,6 +3243,7 @@ void btrfs_orphan_commit_root(struct btrfs_trans_handle *trans, */ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_block_rsv *block_rsv = NULL; int reserve = 0; @@ -3307,7 +3323,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode) /* insert an orphan item to track subvolume contains orphan files */ if (insert >= 2) { - ret = btrfs_insert_orphan_item(trans, root->fs_info->tree_root, + ret = btrfs_insert_orphan_item(trans, fs_info->tree_root, root->root_key.objectid); if (ret && ret != -EEXIST) { btrfs_abort_transaction(trans, ret); @@ -3358,6 +3374,7 @@ static int btrfs_orphan_del(struct btrfs_trans_handle *trans, */ int btrfs_orphan_cleanup(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct extent_buffer *leaf; struct btrfs_key key, found_key; @@ -3417,8 +3434,8 @@ int btrfs_orphan_cleanup(struct btrfs_root *root) */ if (found_key.offset == last_objectid) { - btrfs_err(root->fs_info, - "Error removing orphan entry, stopping orphan cleanup"); + btrfs_err(fs_info, + "Error removing orphan entry, stopping orphan cleanup"); ret = -EINVAL; goto out; } @@ -3428,12 +3445,12 @@ int btrfs_orphan_cleanup(struct btrfs_root *root) found_key.objectid = found_key.offset; found_key.type = BTRFS_INODE_ITEM_KEY; found_key.offset = 0; - inode = btrfs_iget(root->fs_info->sb, &found_key, root, NULL); + inode = btrfs_iget(fs_info->sb, &found_key, root, NULL); ret = PTR_ERR_OR_ZERO(inode); if (ret && ret != -ESTALE) goto out; - if (ret == -ESTALE && root == root->fs_info->tree_root) { + if (ret == -ESTALE && root == fs_info->tree_root) { struct btrfs_root *dead_root; struct btrfs_fs_info *fs_info = root->fs_info; int is_dead_root = 0; @@ -3475,8 +3492,8 @@ int btrfs_orphan_cleanup(struct btrfs_root *root) ret = PTR_ERR(trans); goto out; } - btrfs_debug(root->fs_info, "auto deleting %Lu", - found_key.objectid); + btrfs_debug(fs_info, "auto deleting %Lu", + found_key.objectid); ret = btrfs_del_orphan_item(trans, root, found_key.objectid); btrfs_end_transaction(trans, root); @@ -3544,14 +3561,13 @@ int btrfs_orphan_cleanup(struct btrfs_root *root) } if (nr_unlink) - btrfs_debug(root->fs_info, "unlinked %d orphans", nr_unlink); + btrfs_debug(fs_info, "unlinked %d orphans", nr_unlink); if (nr_truncate) - btrfs_debug(root->fs_info, "truncated %d orphans", nr_truncate); + btrfs_debug(fs_info, "truncated %d orphans", nr_truncate); out: if (ret) - btrfs_err(root->fs_info, - "could not do orphan cleanup %d", ret); + btrfs_err(fs_info, "could not do orphan cleanup %d", ret); btrfs_free_path(path); return ret; } @@ -3630,6 +3646,7 @@ static noinline int acls_after_inode_item(struct extent_buffer *leaf, */ static void btrfs_read_locked_inode(struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_path *path; struct extent_buffer *leaf; struct btrfs_inode_item *inode_item; @@ -3705,7 +3722,7 @@ cache_index: * This is required for both inode re-read from disk and delayed inode * in delayed_nodes_tree. */ - if (BTRFS_I(inode)->last_trans == root->fs_info->generation) + if (BTRFS_I(inode)->last_trans == fs_info->generation) set_bit(BTRFS_INODE_NEEDS_FULL_SYNC, &BTRFS_I(inode)->runtime_flags); @@ -3771,7 +3788,7 @@ cache_acl: path->slots[0] = first_xattr_slot; ret = btrfs_load_inode_props(inode, path); if (ret) - btrfs_err(root->fs_info, + btrfs_err(fs_info, "error loading props for ino %llu (root %llu): %d", btrfs_ino(inode), root->root_key.objectid, ret); @@ -3790,7 +3807,7 @@ cache_acl: break; case S_IFDIR: inode->i_fop = &btrfs_dir_file_operations; - if (root == root->fs_info->tree_root) + if (root == fs_info->tree_root) inode->i_op = &btrfs_dir_ro_inode_operations; else inode->i_op = &btrfs_dir_inode_operations; @@ -3907,6 +3924,7 @@ failed: noinline int btrfs_update_inode(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct inode *inode) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; /* @@ -3918,7 +3936,7 @@ noinline int btrfs_update_inode(struct btrfs_trans_handle *trans, */ if (!btrfs_is_free_space_inode(inode) && root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID - && !root->fs_info->log_root_recovering) { + && !fs_info->log_root_recovering) { btrfs_update_root_times(trans, root); ret = btrfs_delayed_update_inode(trans, root, inode); @@ -3952,6 +3970,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans, struct inode *dir, struct inode *inode, const char *name, int name_len) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; int ret = 0; struct extent_buffer *leaf; @@ -4006,7 +4025,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans, ret = btrfs_del_inode_ref(trans, root, name, name_len, ino, dir_ino, &index); if (ret) { - btrfs_info(root->fs_info, + btrfs_info(fs_info, "failed to delete reference to %.*s, inode %llu parent %llu", name_len, name, ino, dir_ino); btrfs_abort_transaction(trans, ret); @@ -4118,6 +4137,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans, struct inode *dir, u64 objectid, const char *name, int name_len) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct extent_buffer *leaf; struct btrfs_dir_item *di; @@ -4150,9 +4170,9 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans, } btrfs_release_path(path); - ret = btrfs_del_root_ref(trans, root->fs_info, - objectid, root->root_key.objectid, - dir_ino, &index, name, name_len); + ret = btrfs_del_root_ref(trans, fs_info, objectid, + root->root_key.objectid, dir_ino, + &index, name, name_len); if (ret < 0) { if (ret != -ENOENT) { btrfs_abort_transaction(trans, ret); @@ -4237,6 +4257,7 @@ static int truncate_space_check(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 bytes_deleted) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; /* @@ -4244,11 +4265,11 @@ static int truncate_space_check(struct btrfs_trans_handle *trans, * intend to use this reservation at all. */ bytes_deleted = btrfs_csum_bytes_to_leaves(root, bytes_deleted); - bytes_deleted *= root->fs_info->nodesize; - ret = btrfs_block_rsv_add(root, &root->fs_info->trans_block_rsv, + bytes_deleted *= fs_info->nodesize; + ret = btrfs_block_rsv_add(root, &fs_info->trans_block_rsv, bytes_deleted, BTRFS_RESERVE_NO_FLUSH); if (!ret) { - trace_btrfs_space_reservation(root->fs_info, "transaction", + trace_btrfs_space_reservation(fs_info, "transaction", trans->transid, bytes_deleted, 1); trans->bytes_reserved += bytes_deleted; @@ -4315,6 +4336,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans, struct inode *inode, u64 new_size, u32 min_type) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct extent_buffer *leaf; struct btrfs_file_extent_item *fi; @@ -4360,9 +4382,9 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans, * extent just the way it is. */ if (test_bit(BTRFS_ROOT_REF_COWS, &root->state) || - root == root->fs_info->tree_root) + root == fs_info->tree_root) btrfs_drop_extent_cache(inode, ALIGN(new_size, - root->fs_info->sectorsize), + fs_info->sectorsize), (u64)-1, 0); /* @@ -4462,7 +4484,7 @@ search_again: btrfs_file_extent_num_bytes(leaf, fi); extent_num_bytes = ALIGN(new_size - found_key.offset, - root->fs_info->sectorsize); + fs_info->sectorsize); btrfs_set_file_extent_num_bytes(leaf, fi, extent_num_bytes); num_dec = (orig_num_bytes - @@ -4549,7 +4571,7 @@ delete: if (found_extent && (test_bit(BTRFS_ROOT_REF_COWS, &root->state) || - root == root->fs_info->tree_root)) { + root == fs_info->tree_root)) { btrfs_set_path_blocking(path); bytes_deleted += extent_num_bytes; ret = btrfs_free_extent(trans, root, extent_start, @@ -4650,13 +4672,13 @@ error: int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len, int front) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct address_space *mapping = inode->i_mapping; - struct btrfs_root *root = BTRFS_I(inode)->root; struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; struct btrfs_ordered_extent *ordered; struct extent_state *cached_state = NULL; char *kaddr; - u32 blocksize = root->fs_info->sectorsize; + u32 blocksize = fs_info->sectorsize; pgoff_t index = from >> PAGE_SHIFT; unsigned offset = from & (blocksize - 1); struct page *page; @@ -4760,6 +4782,7 @@ out: static int maybe_insert_hole(struct btrfs_root *root, struct inode *inode, u64 offset, u64 len) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_trans_handle *trans; int ret; @@ -4767,8 +4790,8 @@ static int maybe_insert_hole(struct btrfs_root *root, struct inode *inode, * Still need to make sure the inode looks like it's been updated so * that any holes get logged if we fsync. */ - if (btrfs_fs_incompat(root->fs_info, NO_HOLES)) { - BTRFS_I(inode)->last_trans = root->fs_info->generation; + if (btrfs_fs_incompat(fs_info, NO_HOLES)) { + BTRFS_I(inode)->last_trans = fs_info->generation; BTRFS_I(inode)->last_sub_trans = root->log_transid; BTRFS_I(inode)->last_log_commit = root->last_log_commit; return 0; @@ -4808,13 +4831,14 @@ static int maybe_insert_hole(struct btrfs_root *root, struct inode *inode, */ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; struct extent_map *em = NULL; struct extent_state *cached_state = NULL; struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree; - u64 hole_start = ALIGN(oldsize, root->fs_info->sectorsize); - u64 block_end = ALIGN(size, root->fs_info->sectorsize); + u64 hole_start = ALIGN(oldsize, fs_info->sectorsize); + u64 block_end = ALIGN(size, fs_info->sectorsize); u64 last_byte; u64 cur_offset; u64 hole_size; @@ -4857,7 +4881,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size) break; } last_byte = min(extent_map_end(em), block_end); - last_byte = ALIGN(last_byte, root->fs_info->sectorsize); + last_byte = ALIGN(last_byte, fs_info->sectorsize); if (!test_bit(EXTENT_FLAG_PREALLOC, &em->flags)) { struct extent_map *hole_em; hole_size = last_byte - cur_offset; @@ -4882,9 +4906,9 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size) hole_em->block_len = 0; hole_em->orig_block_len = 0; hole_em->ram_bytes = hole_size; - hole_em->bdev = root->fs_info->fs_devices->latest_bdev; + hole_em->bdev = fs_info->fs_devices->latest_bdev; hole_em->compress_type = BTRFS_COMPRESS_NONE; - hole_em->generation = root->fs_info->generation; + hole_em->generation = fs_info->generation; while (1) { write_lock(&em_tree->lock); @@ -5154,11 +5178,12 @@ static void evict_inode_truncate_pages(struct inode *inode) void btrfs_evict_inode(struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_trans_handle *trans; struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_block_rsv *rsv, *global_rsv; int steal_from_global = 0; - u64 min_size = btrfs_calc_trunc_metadata_size(root->fs_info, 1); + u64 min_size = btrfs_calc_trunc_metadata_size(fs_info, 1); int ret; trace_btrfs_inode_evict(inode); @@ -5181,7 +5206,7 @@ void btrfs_evict_inode(struct inode *inode) btrfs_free_io_failure_record(inode, 0, (u64)-1); - if (root->fs_info->log_root_recovering) { + if (fs_info->log_root_recovering) { BUG_ON(test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM, &BTRFS_I(inode)->runtime_flags)); goto no_delete; @@ -5206,7 +5231,7 @@ void btrfs_evict_inode(struct inode *inode) } rsv->size = min_size; rsv->failfast = 1; - global_rsv = &root->fs_info->global_block_rsv; + global_rsv = &fs_info->global_block_rsv; btrfs_i_size_write(inode, 0); @@ -5240,9 +5265,9 @@ void btrfs_evict_inode(struct inode *inode) * steal_from_global == 3: abandon all hope! */ if (steal_from_global > 2) { - btrfs_warn(root->fs_info, - "Could not get space for a delete, will truncate on mount %d", - ret); + btrfs_warn(fs_info, + "Could not get space for a delete, will truncate on mount %d", + ret); btrfs_orphan_del(NULL, inode); btrfs_free_block_rsv(root, rsv); goto no_delete; @@ -5291,7 +5316,7 @@ void btrfs_evict_inode(struct inode *inode) if (ret != -ENOSPC && ret != -EAGAIN) break; - trans->block_rsv = &root->fs_info->trans_block_rsv; + trans->block_rsv = &fs_info->trans_block_rsv; btrfs_end_transaction(trans, root); trans = NULL; btrfs_btree_balance_dirty(root); @@ -5310,8 +5335,8 @@ void btrfs_evict_inode(struct inode *inode) btrfs_orphan_del(NULL, inode); } - trans->block_rsv = &root->fs_info->trans_block_rsv; - if (!(root == root->fs_info->tree_root || + trans->block_rsv = &fs_info->trans_block_rsv; + if (!(root == fs_info->tree_root || root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID)) btrfs_return_ino(root, btrfs_ino(inode)); @@ -5368,6 +5393,7 @@ static int fixup_tree_root_location(struct btrfs_root *root, struct btrfs_key *location, struct btrfs_root **sub_root) { + struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb); struct btrfs_path *path; struct btrfs_root *new_root; struct btrfs_root_ref *ref; @@ -5387,8 +5413,7 @@ static int fixup_tree_root_location(struct btrfs_root *root, key.type = BTRFS_ROOT_REF_KEY; key.offset = location->objectid; - ret = btrfs_search_slot(NULL, root->fs_info->tree_root, &key, path, - 0, 0); + ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0); if (ret) { if (ret < 0) err = ret; @@ -5409,7 +5434,7 @@ static int fixup_tree_root_location(struct btrfs_root *root, btrfs_release_path(path); - new_root = btrfs_read_fs_root_no_name(root->fs_info, location); + new_root = btrfs_read_fs_root_no_name(fs_info, location); if (IS_ERR(new_root)) { err = PTR_ERR(new_root); goto out; @@ -5463,6 +5488,7 @@ static void inode_tree_add(struct inode *inode) static void inode_tree_del(struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; int empty = 0; @@ -5475,7 +5501,7 @@ static void inode_tree_del(struct inode *inode) spin_unlock(&root->inode_lock); if (empty && btrfs_root_refs(&root->root_item) == 0) { - synchronize_srcu(&root->fs_info->subvol_srcu); + synchronize_srcu(&fs_info->subvol_srcu); spin_lock(&root->inode_lock); empty = RB_EMPTY_ROOT(&root->inode_tree); spin_unlock(&root->inode_lock); @@ -5486,13 +5512,14 @@ static void inode_tree_del(struct inode *inode) void btrfs_invalidate_inodes(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct rb_node *node; struct rb_node *prev; struct btrfs_inode *entry; struct inode *inode; u64 objectid = 0; - if (!test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) + if (!test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) WARN_ON(btrfs_root_refs(&root->root_item) != 0); spin_lock(&root->inode_lock); @@ -5637,6 +5664,7 @@ static struct inode *new_simple_dir(struct super_block *s, struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry) { + struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb); struct inode *inode; struct btrfs_root *root = BTRFS_I(dir)->root; struct btrfs_root *sub_root = root; @@ -5661,7 +5689,7 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry) BUG_ON(location.type != BTRFS_ROOT_ITEM_KEY); - index = srcu_read_lock(&root->fs_info->subvol_srcu); + index = srcu_read_lock(&fs_info->subvol_srcu); ret = fixup_tree_root_location(root, dir, dentry, &location, &sub_root); if (ret < 0) { @@ -5672,13 +5700,13 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry) } else { inode = btrfs_iget(dir->i_sb, &location, sub_root, NULL); } - srcu_read_unlock(&root->fs_info->subvol_srcu, index); + srcu_read_unlock(&fs_info->subvol_srcu, index); if (!IS_ERR(inode) && root != sub_root) { - down_read(&root->fs_info->cleanup_work_sem); + down_read(&fs_info->cleanup_work_sem); if (!(inode->i_sb->s_flags & MS_RDONLY)) ret = btrfs_orphan_cleanup(sub_root); - up_read(&root->fs_info->cleanup_work_sem); + up_read(&fs_info->cleanup_work_sem); if (ret) { iput(inode); inode = ERR_PTR(ret); @@ -6109,6 +6137,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans, u64 ref_objectid, u64 objectid, umode_t mode, u64 *index) { + struct btrfs_fs_info *fs_info = root->fs_info; struct inode *inode; struct btrfs_inode_item *inode_item; struct btrfs_key *location; @@ -6124,7 +6153,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans, if (!path) return ERR_PTR(-ENOMEM); - inode = new_inode(root->fs_info->sb); + inode = new_inode(fs_info->sb); if (!inode) { btrfs_free_path(path); return ERR_PTR(-ENOMEM); @@ -6237,9 +6266,9 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans, btrfs_inherit_iflags(inode, dir); if (S_ISREG(mode)) { - if (btrfs_test_opt(root->fs_info, NODATASUM)) + if (btrfs_test_opt(fs_info, NODATASUM)) BTRFS_I(inode)->flags |= BTRFS_INODE_NODATASUM; - if (btrfs_test_opt(root->fs_info, NODATACOW)) + if (btrfs_test_opt(fs_info, NODATACOW)) BTRFS_I(inode)->flags |= BTRFS_INODE_NODATACOW | BTRFS_INODE_NODATASUM; } @@ -6253,7 +6282,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans, ret = btrfs_inode_inherit_props(trans, inode, dir); if (ret) - btrfs_err(root->fs_info, + btrfs_err(fs_info, "error inheriting props for ino %llu (root %llu): %d", btrfs_ino(inode), root->root_key.objectid, ret); @@ -6284,6 +6313,7 @@ int btrfs_add_link(struct btrfs_trans_handle *trans, struct inode *parent_inode, struct inode *inode, const char *name, int name_len, int add_backref, u64 index) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); int ret = 0; struct btrfs_key key; struct btrfs_root *root = BTRFS_I(parent_inode)->root; @@ -6299,9 +6329,9 @@ int btrfs_add_link(struct btrfs_trans_handle *trans, } if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) { - ret = btrfs_add_root_ref(trans, root->fs_info, - key.objectid, root->root_key.objectid, - parent_ino, index, name, name_len); + ret = btrfs_add_root_ref(trans, fs_info, key.objectid, + root->root_key.objectid, parent_ino, + index, name, name_len); } else if (add_backref) { ret = btrfs_insert_inode_ref(trans, root, name, name_len, ino, parent_ino, index); @@ -6335,9 +6365,9 @@ fail_dir_item: if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) { u64 local_index; int err; - err = btrfs_del_root_ref(trans, root->fs_info, - key.objectid, root->root_key.objectid, - parent_ino, &local_index, name, name_len); + err = btrfs_del_root_ref(trans, fs_info, key.objectid, + root->root_key.objectid, parent_ino, + &local_index, name, name_len); } else if (add_backref) { u64 local_index; @@ -6761,6 +6791,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page, size_t pg_offset, u64 start, u64 len, int create) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); int ret; int err = 0; u64 extent_start = 0; @@ -6782,7 +6813,7 @@ again: read_lock(&em_tree->lock); em = lookup_extent_mapping(em_tree, start, len); if (em) - em->bdev = root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; read_unlock(&em_tree->lock); if (em) { @@ -6798,7 +6829,7 @@ again: err = -ENOMEM; goto out; } - em->bdev = root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; em->start = EXTENT_MAP_HOLE; em->orig_start = EXTENT_MAP_HOLE; em->len = (u64)-1; @@ -6858,7 +6889,7 @@ again: size_t size; size = btrfs_file_extent_inline_len(leaf, path->slots[0], item); extent_end = ALIGN(extent_start + size, - root->fs_info->sectorsize); + fs_info->sectorsize); } next: if (start >= extent_end) { @@ -6907,7 +6938,7 @@ next: copy_size = min_t(u64, PAGE_SIZE - pg_offset, size - extent_offset); em->start = extent_start + extent_offset; - em->len = ALIGN(copy_size, root->fs_info->sectorsize); + em->len = ALIGN(copy_size, fs_info->sectorsize); em->orig_block_len = em->len; em->orig_start = em->start; ptr = btrfs_file_extent_inline_start(item) + extent_offset; @@ -6966,8 +6997,9 @@ not_found_em: insert: btrfs_release_path(path); if (em->start > start || extent_map_end(em) <= start) { - btrfs_err(root->fs_info, "bad extent! em: [%llu %llu] passed [%llu %llu]", - em->start, em->len, start, len); + btrfs_err(fs_info, + "bad extent! em: [%llu %llu] passed [%llu %llu]", + em->start, em->len, start, len); err = -EIO; goto out; } @@ -7205,6 +7237,7 @@ static struct extent_map *btrfs_create_dio_extent(struct inode *inode, static struct extent_map *btrfs_new_extent_direct(struct inode *inode, u64 start, u64 len) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct extent_map *em; struct btrfs_key ins; @@ -7212,7 +7245,7 @@ static struct extent_map *btrfs_new_extent_direct(struct inode *inode, int ret; alloc_hint = get_extent_allocation_hint(inode, start, len); - ret = btrfs_reserve_extent(root, len, root->fs_info->sectorsize, + ret = btrfs_reserve_extent(root, len, fs_info->sectorsize, 0, alloc_hint, &ins, 1, 1); if (ret) @@ -7221,7 +7254,7 @@ static struct extent_map *btrfs_new_extent_direct(struct inode *inode, em = btrfs_create_dio_extent(inode, start, ins.offset, start, ins.objectid, ins.offset, ins.offset, ins.offset, 0); - btrfs_dec_block_group_reservations(root->fs_info, ins.objectid); + btrfs_dec_block_group_reservations(fs_info, ins.objectid); if (IS_ERR(em)) btrfs_free_reserved_extent(root, ins.objectid, ins.offset, 1); @@ -7596,8 +7629,8 @@ static void adjust_dio_outstanding_extents(struct inode *inode, static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct extent_map *em; - struct btrfs_root *root = BTRFS_I(inode)->root; struct extent_state *cached_state = NULL; struct btrfs_dio_data *dio_data = NULL; u64 start = iblock << inode->i_blkbits; @@ -7609,7 +7642,7 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock, if (create) unlock_bits |= EXTENT_DIRTY; else - len = min_t(u64, len, root->fs_info->sectorsize); + len = min_t(u64, len, fs_info->sectorsize); lockstart = start; lockend = start + len - 1; @@ -7698,14 +7731,14 @@ static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock, if (can_nocow_extent(inode, start, &len, &orig_start, &orig_block_len, &ram_bytes) == 1 && - btrfs_inc_nocow_writers(root->fs_info, block_start)) { + btrfs_inc_nocow_writers(fs_info, block_start)) { struct extent_map *em2; em2 = btrfs_create_dio_extent(inode, start, len, orig_start, block_start, len, orig_block_len, ram_bytes, type); - btrfs_dec_nocow_writers(root->fs_info, block_start); + btrfs_dec_nocow_writers(fs_info, block_start); if (type == BTRFS_ORDERED_PREALLOC) { free_extent_map(em); em = em2; @@ -8132,7 +8165,7 @@ static void btrfs_endio_direct_write_update_ordered(struct inode *inode, const u64 bytes, const int uptodate) { - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ordered_extent *ordered = NULL; u64 ordered_offset = offset; u64 ordered_bytes = bytes; @@ -8148,8 +8181,7 @@ again: btrfs_init_work(&ordered->work, btrfs_endio_write_helper, finish_ordered_fn, NULL, NULL); - btrfs_queue_work(root->fs_info->endio_write_workers, - &ordered->work); + btrfs_queue_work(fs_info->endio_write_workers, &ordered->work); out_test: /* * our bio might span multiple ordered extents. If we haven't @@ -8275,6 +8307,7 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode, int rw, u64 file_offset, int skip_sum, int async_submit) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_dio_private *dip = bio->bi_private; int write = rw & REQ_WRITE; struct btrfs_root *root = BTRFS_I(inode)->root; @@ -8286,8 +8319,7 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode, bio_get(bio); if (!write) { - ret = btrfs_bio_wq_end_io(root->fs_info, bio, - BTRFS_WQ_ENDIO_DATA); + ret = btrfs_bio_wq_end_io(fs_info, bio, BTRFS_WQ_ENDIO_DATA); if (ret) goto err; } @@ -8296,11 +8328,10 @@ static inline int __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode, goto map; if (write && async_submit) { - ret = btrfs_wq_submit_bio(root->fs_info, - inode, rw, bio, 0, 0, - file_offset, - __btrfs_submit_bio_start_direct_io, - __btrfs_submit_bio_done); + ret = btrfs_wq_submit_bio(fs_info, inode, rw, bio, 0, 0, + file_offset, + __btrfs_submit_bio_start_direct_io, + __btrfs_submit_bio_done); goto err; } else if (write) { /* @@ -8327,6 +8358,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip, int skip_sum) { struct inode *inode = dip->inode; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct bio *bio; struct bio *orig_bio = dip->orig_bio; @@ -8335,15 +8367,15 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip, u64 file_offset = dip->logical_offset; u64 submit_len = 0; u64 map_length; - u32 blocksize = root->fs_info->sectorsize; + u32 blocksize = fs_info->sectorsize; int async_submit = 0; int nr_sectors; int ret; int i; map_length = orig_bio->bi_iter.bi_size; - ret = btrfs_map_block(root->fs_info, rw, start_sector << 9, - &map_length, NULL, 0); + ret = btrfs_map_block(fs_info, rw, start_sector << 9, &map_length, + NULL, 0); if (ret) return -EIO; @@ -8369,7 +8401,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip, atomic_inc(&dip->pending_bios); while (bvec <= (orig_bio->bi_io_vec + orig_bio->bi_vcnt - 1)) { - nr_sectors = BTRFS_BYTES_TO_BLKS(root->fs_info, bvec->bv_len); + nr_sectors = BTRFS_BYTES_TO_BLKS(fs_info, bvec->bv_len); i = 0; next_block: if (unlikely(map_length < submit_len + blocksize || @@ -8405,8 +8437,7 @@ next_block: btrfs_io_bio(bio)->logical = file_offset; map_length = orig_bio->bi_iter.bi_size; - ret = btrfs_map_block(root->fs_info, rw, - start_sector << 9, + ret = btrfs_map_block(fs_info, rw, start_sector << 9, &map_length, NULL, 0); if (ret) { bio_put(bio); @@ -8555,9 +8586,10 @@ free_ordered: static ssize_t check_direct_IO(struct btrfs_root *root, struct kiocb *iocb, const struct iov_iter *iter, loff_t offset) { + struct btrfs_fs_info *fs_info = root->fs_info; int seg; int i; - unsigned int blocksize_mask = root->fs_info->sectorsize - 1; + unsigned int blocksize_mask = fs_info->sectorsize - 1; ssize_t retval = -EINVAL; if (offset & blocksize_mask) @@ -8589,7 +8621,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter) { struct file *file = iocb->ki_filp; struct inode *inode = file->f_mapping->host; - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_dio_data dio_data = { 0 }; loff_t offset = iocb->ki_pos; size_t count = 0; @@ -8639,7 +8671,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter) * originally calculated. Abuse current->journal_info for this. */ dio_data.reserve = round_up(count, - root->fs_info->sectorsize); + fs_info->sectorsize); dio_data.unsubmitted_oe_range_start = (u64)offset; dio_data.unsubmitted_oe_range_end = (u64)offset; current->journal_info = &dio_data; @@ -8651,7 +8683,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter) } ret = __blockdev_direct_IO(iocb, inode, - BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev, + fs_info->fs_devices->latest_bdev, iter, btrfs_get_blocks_direct, NULL, btrfs_submit_direct, flags); if (iov_iter_rw(iter) == WRITE) { @@ -8905,7 +8937,7 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) { struct page *page = vmf->page; struct inode *inode = file_inode(vma->vm_file); - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree; struct btrfs_ordered_extent *ordered; struct extent_state *cached_state = NULL; @@ -8981,7 +9013,7 @@ again: if (page->index == ((size - 1) >> PAGE_SHIFT)) { reserved_space = round_up(size - page_start, - root->fs_info->sectorsize); + fs_info->sectorsize); if (reserved_space < PAGE_SIZE) { end = page_start + reserved_space - 1; spin_lock(&BTRFS_I(inode)->lock); @@ -9030,7 +9062,7 @@ again: set_page_dirty(page); SetPageUptodate(page); - BTRFS_I(inode)->last_trans = root->fs_info->generation; + BTRFS_I(inode)->last_trans = fs_info->generation; BTRFS_I(inode)->last_sub_trans = BTRFS_I(inode)->root->log_transid; BTRFS_I(inode)->last_log_commit = BTRFS_I(inode)->root->last_log_commit; @@ -9051,13 +9083,14 @@ out_noreserve: static int btrfs_truncate(struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_block_rsv *rsv; int ret = 0; int err = 0; struct btrfs_trans_handle *trans; - u64 mask = root->fs_info->sectorsize - 1; - u64 min_size = btrfs_calc_trunc_metadata_size(root->fs_info, 1); + u64 mask = fs_info->sectorsize - 1; + u64 min_size = btrfs_calc_trunc_metadata_size(fs_info, 1); ret = btrfs_wait_ordered_range(inode, inode->i_size & (~mask), (u64)-1); @@ -9117,7 +9150,7 @@ static int btrfs_truncate(struct inode *inode) } /* Migrate the slack space for the truncate to our reserve */ - ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, rsv, + ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv, rsv, min_size); BUG_ON(ret); @@ -9140,7 +9173,7 @@ static int btrfs_truncate(struct inode *inode) break; } - trans->block_rsv = &root->fs_info->trans_block_rsv; + trans->block_rsv = &fs_info->trans_block_rsv; ret = btrfs_update_inode(trans, root, inode); if (ret) { err = ret; @@ -9157,7 +9190,7 @@ static int btrfs_truncate(struct inode *inode) break; } - ret = btrfs_block_rsv_migrate(&root->fs_info->trans_block_rsv, + ret = btrfs_block_rsv_migrate(&fs_info->trans_block_rsv, rsv, min_size); BUG_ON(ret); /* shouldn't happen */ trans->block_rsv = rsv; @@ -9171,7 +9204,7 @@ static int btrfs_truncate(struct inode *inode) } if (trans) { - trans->block_rsv = &root->fs_info->trans_block_rsv; + trans->block_rsv = &fs_info->trans_block_rsv; ret = btrfs_update_inode(trans, root, inode); if (ret && !err) err = ret; @@ -9297,6 +9330,7 @@ static void btrfs_i_callback(struct rcu_head *head) void btrfs_destroy_inode(struct inode *inode) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ordered_extent *ordered; struct btrfs_root *root = BTRFS_I(inode)->root; @@ -9318,8 +9352,8 @@ void btrfs_destroy_inode(struct inode *inode) if (test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM, &BTRFS_I(inode)->runtime_flags)) { - btrfs_info(root->fs_info, "inode %llu still on the orphan list", - btrfs_ino(inode)); + btrfs_info(fs_info, "inode %llu still on the orphan list", + btrfs_ino(inode)); atomic_dec(&root->orphan_inodes); } @@ -9328,8 +9362,9 @@ void btrfs_destroy_inode(struct inode *inode) if (!ordered) break; else { - btrfs_err(root->fs_info, "found ordered extent %llu %llu on inode cleanup", - ordered->file_offset, ordered->len); + btrfs_err(fs_info, + "found ordered extent %llu %llu on inode cleanup", + ordered->file_offset, ordered->len); btrfs_remove_ordered_extent(inode, ordered); btrfs_put_ordered_extent(ordered); btrfs_put_ordered_extent(ordered); @@ -9439,6 +9474,7 @@ static int btrfs_rename_exchange(struct inode *old_dir, struct inode *new_dir, struct dentry *new_dentry) { + struct btrfs_fs_info *fs_info = btrfs_sb(old_dir->i_sb); struct btrfs_trans_handle *trans; struct btrfs_root *root = BTRFS_I(old_dir)->root; struct btrfs_root *dest = BTRFS_I(new_dir)->root; @@ -9461,9 +9497,9 @@ static int btrfs_rename_exchange(struct inode *old_dir, /* close the race window with snapshot create/destroy ioctl */ if (old_ino == BTRFS_FIRST_FREE_OBJECTID) - down_read(&root->fs_info->subvol_sem); + down_read(&fs_info->subvol_sem); if (new_ino == BTRFS_FIRST_FREE_OBJECTID) - down_read(&dest->fs_info->subvol_sem); + down_read(&fs_info->subvol_sem); /* * We want to reserve the absolute worst case amount of items. So if @@ -9496,7 +9532,7 @@ static int btrfs_rename_exchange(struct inode *old_dir, /* Reference for the source. */ if (old_ino == BTRFS_FIRST_FREE_OBJECTID) { /* force full log commit if subvolume involved. */ - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); } else { btrfs_pin_log_trans(root); root_log_pinned = true; @@ -9512,7 +9548,7 @@ static int btrfs_rename_exchange(struct inode *old_dir, /* And now for the dest. */ if (new_ino == BTRFS_FIRST_FREE_OBJECTID) { /* force full log commit if subvolume involved. */ - btrfs_set_log_full_commit(dest->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); } else { btrfs_pin_log_trans(dest); dest_log_pinned = true; @@ -9626,12 +9662,12 @@ out_fail: * allow the tasks to sync it. */ if (ret && (root_log_pinned || dest_log_pinned)) { - if (btrfs_inode_in_log(old_dir, root->fs_info->generation) || - btrfs_inode_in_log(new_dir, root->fs_info->generation) || - btrfs_inode_in_log(old_inode, root->fs_info->generation) || + if (btrfs_inode_in_log(old_dir, fs_info->generation) || + btrfs_inode_in_log(new_dir, fs_info->generation) || + btrfs_inode_in_log(old_inode, fs_info->generation) || (new_inode && - btrfs_inode_in_log(new_inode, root->fs_info->generation))) - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_inode_in_log(new_inode, fs_info->generation))) + btrfs_set_log_full_commit(fs_info, trans); if (root_log_pinned) { btrfs_end_log_trans(root); @@ -9645,9 +9681,9 @@ out_fail: ret = btrfs_end_transaction(trans, root); out_notrans: if (new_ino == BTRFS_FIRST_FREE_OBJECTID) - up_read(&dest->fs_info->subvol_sem); + up_read(&fs_info->subvol_sem); if (old_ino == BTRFS_FIRST_FREE_OBJECTID) - up_read(&root->fs_info->subvol_sem); + up_read(&fs_info->subvol_sem); return ret; } @@ -9707,6 +9743,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry, unsigned int flags) { + struct btrfs_fs_info *fs_info = btrfs_sb(old_dir->i_sb); struct btrfs_trans_handle *trans; unsigned int trans_num_items; struct btrfs_root *root = BTRFS_I(old_dir)->root; @@ -9763,7 +9800,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, /* close the racy window with snapshot create/destroy ioctl */ if (old_ino == BTRFS_FIRST_FREE_OBJECTID) - down_read(&root->fs_info->subvol_sem); + down_read(&fs_info->subvol_sem); /* * We want to reserve the absolute worst case amount of items. So if * both inodes are subvols and we need to unlink them then that would @@ -9794,7 +9831,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry, BTRFS_I(old_inode)->dir_index = 0ULL; if (unlikely(old_ino == BTRFS_FIRST_FREE_OBJECTID)) { /* force full log commit if subvolume involved. */ - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); } else { btrfs_pin_log_trans(root); log_pinned = true; @@ -9901,12 +9938,12 @@ out_fail: * allow the tasks to sync it. */ if (ret && log_pinned) { - if (btrfs_inode_in_log(old_dir, root->fs_info->generation) || - btrfs_inode_in_log(new_dir, root->fs_info->generation) || - btrfs_inode_in_log(old_inode, root->fs_info->generation) || + if (btrfs_inode_in_log(old_dir, fs_info->generation) || + btrfs_inode_in_log(new_dir, fs_info->generation) || + btrfs_inode_in_log(old_inode, fs_info->generation) || (new_inode && - btrfs_inode_in_log(new_inode, root->fs_info->generation))) - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_inode_in_log(new_inode, fs_info->generation))) + btrfs_set_log_full_commit(fs_info, trans); btrfs_end_log_trans(root); log_pinned = false; @@ -9914,7 +9951,7 @@ out_fail: btrfs_end_transaction(trans, root); out_notrans: if (old_ino == BTRFS_FIRST_FREE_OBJECTID) - up_read(&root->fs_info->subvol_sem); + up_read(&fs_info->subvol_sem); return ret; } @@ -10049,9 +10086,10 @@ out: int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; - if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) + if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) return -EROFS; ret = __start_delalloc_inodes(root, delay_iput, -1); @@ -10062,14 +10100,14 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput) * we have to make sure the IO is actually started and that * ordered extents get created before we return */ - atomic_inc(&root->fs_info->async_submit_draining); - while (atomic_read(&root->fs_info->nr_async_submits) || - atomic_read(&root->fs_info->async_delalloc_pages)) { - wait_event(root->fs_info->async_submit_wait, - (atomic_read(&root->fs_info->nr_async_submits) == 0 && - atomic_read(&root->fs_info->async_delalloc_pages) == 0)); - } - atomic_dec(&root->fs_info->async_submit_draining); + atomic_inc(&fs_info->async_submit_draining); + while (atomic_read(&fs_info->nr_async_submits) || + atomic_read(&fs_info->async_delalloc_pages)) { + wait_event(fs_info->async_submit_wait, + (atomic_read(&fs_info->nr_async_submits) == 0 && + atomic_read(&fs_info->async_delalloc_pages) == 0)); + } + atomic_dec(&fs_info->async_submit_draining); return ret; } @@ -10132,6 +10170,7 @@ out: static int btrfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) { + struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb); struct btrfs_trans_handle *trans; struct btrfs_root *root = BTRFS_I(dir)->root; struct btrfs_path *path; @@ -10148,7 +10187,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry, struct extent_buffer *leaf; name_len = strlen(symname); - if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(root->fs_info)) + if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(fs_info)) return -ENAMETOOLONG; /* @@ -10261,6 +10300,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode, loff_t actual_len, u64 *alloc_hint, struct btrfs_trans_handle *trans) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree; struct extent_map *em; struct btrfs_root *root = BTRFS_I(inode)->root; @@ -10299,7 +10339,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode, btrfs_end_transaction(trans, root); break; } - btrfs_dec_block_group_reservations(root->fs_info, ins.objectid); + btrfs_dec_block_group_reservations(fs_info, ins.objectid); last_alloc = ins.offset; ret = insert_reserved_file_extent(trans, inode, @@ -10333,7 +10373,7 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode, em->block_len = ins.offset; em->orig_block_len = ins.offset; em->ram_bytes = ins.offset; - em->bdev = root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; set_bit(EXTENT_FLAG_PREALLOC, &em->flags); em->generation = trans->transid; diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index a395e85a9ca2..f5bcc3eee1cc 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -216,6 +216,7 @@ static int check_flags(unsigned int flags) static int btrfs_ioctl_setflags(struct file *file, void __user *arg) { struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_inode *ip = BTRFS_I(inode); struct btrfs_root *root = ip->root; struct btrfs_trans_handle *trans; @@ -325,7 +326,7 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg) ip->flags |= BTRFS_INODE_COMPRESS; ip->flags &= ~BTRFS_INODE_NOCOMPRESS; - if (root->fs_info->compress_type == BTRFS_COMPRESS_LZO) + if (fs_info->compress_type == BTRFS_COMPRESS_LZO) comp = "lzo"; else comp = "zlib"; @@ -374,7 +375,8 @@ static int btrfs_ioctl_getversion(struct file *file, int __user *arg) static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg) { - struct btrfs_fs_info *fs_info = btrfs_sb(file_inode(file)->i_sb); + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_device *device; struct request_queue *q; struct fstrim_range range; @@ -437,6 +439,7 @@ static noinline int create_subvol(struct inode *dir, u64 *async_transid, struct btrfs_qgroup_inherit *inherit) { + struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb); struct btrfs_trans_handle *trans; struct btrfs_key key; struct btrfs_root_item *root_item; @@ -459,7 +462,7 @@ static noinline int create_subvol(struct inode *dir, if (!root_item) return -ENOMEM; - ret = btrfs_find_free_objectid(root->fs_info->tree_root, &objectid); + ret = btrfs_find_free_objectid(fs_info->tree_root, &objectid); if (ret) goto fail_free; @@ -492,7 +495,7 @@ static noinline int create_subvol(struct inode *dir, trans->block_rsv = &block_rsv; trans->bytes_reserved = block_rsv.size; - ret = btrfs_qgroup_inherit(trans, root->fs_info, 0, objectid, inherit); + ret = btrfs_qgroup_inherit(trans, fs_info, 0, objectid, inherit); if (ret) goto fail; @@ -508,9 +511,9 @@ static noinline int create_subvol(struct inode *dir, btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV); btrfs_set_header_owner(leaf, objectid); - write_extent_buffer(leaf, root->fs_info->fsid, btrfs_header_fsid(), + write_extent_buffer(leaf, fs_info->fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE); - write_extent_buffer(leaf, root->fs_info->chunk_tree_uuid, + write_extent_buffer(leaf, fs_info->chunk_tree_uuid, btrfs_header_chunk_tree_uuid(leaf), BTRFS_UUID_SIZE); btrfs_mark_buffer_dirty(leaf); @@ -520,7 +523,7 @@ static noinline int create_subvol(struct inode *dir, btrfs_set_stack_inode_size(inode_item, 3); btrfs_set_stack_inode_nlink(inode_item, 1); btrfs_set_stack_inode_nbytes(inode_item, - root->fs_info->nodesize); + fs_info->nodesize); btrfs_set_stack_inode_mode(inode_item, S_IFDIR | 0755); btrfs_set_root_flags(root_item, 0); @@ -553,13 +556,13 @@ static noinline int create_subvol(struct inode *dir, key.objectid = objectid; key.offset = 0; key.type = BTRFS_ROOT_ITEM_KEY; - ret = btrfs_insert_root(trans, root->fs_info->tree_root, &key, + ret = btrfs_insert_root(trans, fs_info->tree_root, &key, root_item); if (ret) goto fail; key.offset = (u64)-1; - new_root = btrfs_read_fs_root_no_name(root->fs_info, &key); + new_root = btrfs_read_fs_root_no_name(fs_info, &key); if (IS_ERR(new_root)) { ret = PTR_ERR(new_root); btrfs_abort_transaction(trans, ret); @@ -600,12 +603,12 @@ static noinline int create_subvol(struct inode *dir, ret = btrfs_update_inode(trans, root, dir); BUG_ON(ret); - ret = btrfs_add_root_ref(trans, root->fs_info, + ret = btrfs_add_root_ref(trans, fs_info, objectid, root->root_key.objectid, btrfs_ino(dir), index, name, namelen); BUG_ON(ret); - ret = btrfs_uuid_tree_add(trans, root->fs_info, root_item->uuid, + ret = btrfs_uuid_tree_add(trans, fs_info, root_item->uuid, BTRFS_UUID_KEY_SUBVOL, objectid); if (ret) btrfs_abort_transaction(trans, ret); @@ -662,6 +665,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, u64 *async_transid, bool readonly, struct btrfs_qgroup_inherit *inherit) { + struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb); struct inode *inode; struct btrfs_pending_snapshot *pending_snapshot; struct btrfs_trans_handle *trans; @@ -721,19 +725,19 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, goto fail; } - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); list_add(&pending_snapshot->list, &trans->transaction->pending_snapshots); - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); if (async_transid) { *async_transid = trans->transid; ret = btrfs_commit_transaction_async(trans, - root->fs_info->extent_root, 1); + fs_info->extent_root, 1); if (ret) ret = btrfs_commit_transaction(trans, root); } else { ret = btrfs_commit_transaction(trans, - root->fs_info->extent_root); + fs_info->extent_root); } if (ret) goto fail; @@ -842,7 +846,8 @@ static noinline int btrfs_mksubvol(struct path *parent, u64 *async_transid, bool readonly, struct btrfs_qgroup_inherit *inherit) { - struct inode *dir = d_inode(parent->dentry); + struct inode *dir = d_inode(parent->dentry); + struct btrfs_fs_info *fs_info = btrfs_sb(dir->i_sb); struct dentry *dentry; int error; @@ -869,7 +874,7 @@ static noinline int btrfs_mksubvol(struct path *parent, if (error) goto out_dput; - down_read(&BTRFS_I(dir)->root->fs_info->subvol_sem); + down_read(&fs_info->subvol_sem); if (btrfs_root_refs(&BTRFS_I(dir)->root->root_item) == 0) goto out_up_read; @@ -884,7 +889,7 @@ static noinline int btrfs_mksubvol(struct path *parent, if (!error) fsnotify_mkdir(dir, dentry); out_up_read: - up_read(&BTRFS_I(dir)->root->fs_info->subvol_sem); + up_read(&fs_info->subvol_sem); out_dput: dput(dentry); out_unlock: @@ -1268,6 +1273,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file, struct btrfs_ioctl_defrag_range_args *range, u64 newer_than, unsigned long max_to_defrag) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct file_ra_state *ra = NULL; unsigned long last_index; @@ -1365,8 +1371,8 @@ int btrfs_defrag_file(struct inode *inode, struct file *file, if (!(inode->i_sb->s_flags & MS_ACTIVE)) break; - if (btrfs_defrag_cancelled(root->fs_info)) { - btrfs_debug(root->fs_info, "defrag_file cancelled"); + if (btrfs_defrag_cancelled(fs_info)) { + btrfs_debug(fs_info, "defrag_file cancelled"); ret = -EAGAIN; break; } @@ -1454,18 +1460,18 @@ int btrfs_defrag_file(struct inode *inode, struct file *file, * we have to make sure the IO is actually started and that * ordered extents get created before we return */ - atomic_inc(&root->fs_info->async_submit_draining); - while (atomic_read(&root->fs_info->nr_async_submits) || - atomic_read(&root->fs_info->async_delalloc_pages)) { - wait_event(root->fs_info->async_submit_wait, - (atomic_read(&root->fs_info->nr_async_submits) == 0 && - atomic_read(&root->fs_info->async_delalloc_pages) == 0)); + atomic_inc(&fs_info->async_submit_draining); + while (atomic_read(&fs_info->nr_async_submits) || + atomic_read(&fs_info->async_delalloc_pages)) { + wait_event(fs_info->async_submit_wait, + (atomic_read(&fs_info->nr_async_submits) == 0 && + atomic_read(&fs_info->async_delalloc_pages) == 0)); } - atomic_dec(&root->fs_info->async_submit_draining); + atomic_dec(&fs_info->async_submit_draining); } if (range->compress_type == BTRFS_COMPRESS_LZO) { - btrfs_set_fs_incompat(root->fs_info, COMPRESS_LZO); + btrfs_set_fs_incompat(fs_info, COMPRESS_LZO); } ret = defrag_count; @@ -1485,10 +1491,12 @@ out_ra: static noinline int btrfs_ioctl_resize(struct file *file, void __user *arg) { + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); u64 new_size; u64 old_size; u64 devid = 1; - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_ioctl_vol_args *vol_args; struct btrfs_trans_handle *trans; struct btrfs_device *device = NULL; @@ -1505,13 +1513,12 @@ static noinline int btrfs_ioctl_resize(struct file *file, if (ret) return ret; - if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running, - 1)) { + if (atomic_xchg(&fs_info->mutually_exclusive_operation_running, 1)) { mnt_drop_write_file(file); return BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS; } - mutex_lock(&root->fs_info->volume_mutex); + mutex_lock(&fs_info->volume_mutex); vol_args = memdup_user(arg, sizeof(*vol_args)); if (IS_ERR(vol_args)) { ret = PTR_ERR(vol_args); @@ -1533,19 +1540,19 @@ static noinline int btrfs_ioctl_resize(struct file *file, ret = -EINVAL; goto out_free; } - btrfs_info(root->fs_info, "resizing devid %llu", devid); + btrfs_info(fs_info, "resizing devid %llu", devid); } - device = btrfs_find_device(root->fs_info, devid, NULL, NULL); + device = btrfs_find_device(fs_info, devid, NULL, NULL); if (!device) { - btrfs_info(root->fs_info, "resizer unable to find device %llu", - devid); + btrfs_info(fs_info, "resizer unable to find device %llu", + devid); ret = -ENODEV; goto out_free; } if (!device->writeable) { - btrfs_info(root->fs_info, + btrfs_info(fs_info, "resizer unable to apply on readonly device %llu", devid); ret = -EPERM; @@ -1599,11 +1606,11 @@ static noinline int btrfs_ioctl_resize(struct file *file, goto out_free; } - new_size = div_u64(new_size, root->fs_info->sectorsize); - new_size *= root->fs_info->sectorsize; + new_size = div_u64(new_size, fs_info->sectorsize); + new_size *= fs_info->sectorsize; - btrfs_info_in_rcu(root->fs_info, "new size for %s is %llu", - rcu_str_deref(device->name), new_size); + btrfs_info_in_rcu(fs_info, "new size for %s is %llu", + rcu_str_deref(device->name), new_size); if (new_size > old_size) { trans = btrfs_start_transaction(root, 0); @@ -1620,8 +1627,8 @@ static noinline int btrfs_ioctl_resize(struct file *file, out_free: kfree(vol_args); out: - mutex_unlock(&root->fs_info->volume_mutex); - atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0); + mutex_unlock(&fs_info->volume_mutex); + atomic_set(&fs_info->mutually_exclusive_operation_running, 0); mnt_drop_write_file(file); return ret; } @@ -1765,6 +1772,7 @@ static noinline int btrfs_ioctl_subvol_getflags(struct file *file, void __user *arg) { struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; int ret = 0; u64 flags = 0; @@ -1772,10 +1780,10 @@ static noinline int btrfs_ioctl_subvol_getflags(struct file *file, if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID) return -EINVAL; - down_read(&root->fs_info->subvol_sem); + down_read(&fs_info->subvol_sem); if (btrfs_root_readonly(root)) flags |= BTRFS_SUBVOL_RDONLY; - up_read(&root->fs_info->subvol_sem); + up_read(&fs_info->subvol_sem); if (copy_to_user(arg, &flags, sizeof(flags))) ret = -EFAULT; @@ -1787,6 +1795,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file, void __user *arg) { struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_trans_handle *trans; u64 root_flags; @@ -1820,7 +1829,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file, goto out_drop_write; } - down_write(&root->fs_info->subvol_sem); + down_write(&fs_info->subvol_sem); /* nothing to do */ if (!!(flags & BTRFS_SUBVOL_RDONLY) == btrfs_root_readonly(root)) @@ -1842,9 +1851,9 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file, spin_unlock(&root->root_item_lock); } else { spin_unlock(&root->root_item_lock); - btrfs_warn(root->fs_info, - "Attempt to set subvolume %llu read-write during send", - root->root_key.objectid); + btrfs_warn(fs_info, + "Attempt to set subvolume %llu read-write during send", + root->root_key.objectid); ret = -EPERM; goto out_drop_sem; } @@ -1856,7 +1865,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file, goto out_reset; } - ret = btrfs_update_root(trans, root->fs_info->tree_root, + ret = btrfs_update_root(trans, fs_info->tree_root, &root->root_key, &root->root_item); btrfs_commit_transaction(trans, root); @@ -1864,7 +1873,7 @@ out_reset: if (ret) btrfs_set_root_flags(&root->root_item, root_flags); out_drop_sem: - up_write(&root->fs_info->subvol_sem); + up_write(&fs_info->subvol_sem); out_drop_write: mnt_drop_write_file(file); out: @@ -1876,6 +1885,7 @@ out: */ static noinline int may_destroy_subvol(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct btrfs_dir_item *di; struct btrfs_key key; @@ -1887,14 +1897,14 @@ static noinline int may_destroy_subvol(struct btrfs_root *root) return -ENOMEM; /* Make sure this root isn't set as the default subvol */ - dir_id = btrfs_super_root_dir(root->fs_info->super_copy); - di = btrfs_lookup_dir_item(NULL, root->fs_info->tree_root, path, + dir_id = btrfs_super_root_dir(fs_info->super_copy); + di = btrfs_lookup_dir_item(NULL, fs_info->tree_root, path, dir_id, "default", 7, 0); if (di && !IS_ERR(di)) { btrfs_dir_item_key_to_cpu(path->nodes[0], di, &key); if (key.objectid == root->root_key.objectid) { ret = -EPERM; - btrfs_err(root->fs_info, "deleting default subvolume " + btrfs_err(fs_info, "deleting default subvolume " "%llu is not allowed", key.objectid); goto out; } @@ -1905,8 +1915,7 @@ static noinline int may_destroy_subvol(struct btrfs_root *root) key.type = BTRFS_ROOT_REF_KEY; key.offset = (u64)-1; - ret = btrfs_search_slot(NULL, root->fs_info->tree_root, - &key, path, 0, 0); + ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0); if (ret < 0) goto out; BUG_ON(ret == 0); @@ -2077,10 +2086,10 @@ static noinline int search_ioctl(struct inode *inode, size_t *buf_size, char __user *ubuf) { + struct btrfs_fs_info *info = btrfs_sb(inode->i_sb); struct btrfs_root *root; struct btrfs_key key; struct btrfs_path *path; - struct btrfs_fs_info *info = BTRFS_I(inode)->root->fs_info; int ret; int num_found = 0; unsigned long sk_offset = 0; @@ -2343,6 +2352,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, void __user *arg) { struct dentry *parent = file->f_path.dentry; + struct btrfs_fs_info *fs_info = btrfs_sb(parent->d_sb); struct dentry *dentry; struct inode *dir = d_inode(parent); struct inode *inode; @@ -2405,7 +2415,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, * rmdir(2). */ err = -EPERM; - if (!btrfs_test_opt(root->fs_info, USER_SUBVOL_RM_ALLOWED)) + if (!btrfs_test_opt(fs_info, USER_SUBVOL_RM_ALLOWED)) goto out_dput; /* @@ -2449,14 +2459,14 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, spin_unlock(&dest->root_item_lock); } else { spin_unlock(&dest->root_item_lock); - btrfs_warn(root->fs_info, - "Attempt to delete subvolume %llu during send", - dest->root_key.objectid); + btrfs_warn(fs_info, + "Attempt to delete subvolume %llu during send", + dest->root_key.objectid); err = -EPERM; goto out_unlock_inode; } - down_write(&root->fs_info->subvol_sem); + down_write(&fs_info->subvol_sem); err = may_destroy_subvol(dest); if (err) @@ -2501,7 +2511,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, if (!test_and_set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &dest->state)) { ret = btrfs_insert_orphan_item(trans, - root->fs_info->tree_root, + fs_info->tree_root, dest->root_key.objectid); if (ret) { btrfs_abort_transaction(trans, ret); @@ -2510,7 +2520,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, } } - ret = btrfs_uuid_tree_rem(trans, root->fs_info, dest->root_item.uuid, + ret = btrfs_uuid_tree_rem(trans, fs_info, dest->root_item.uuid, BTRFS_UUID_KEY_SUBVOL, dest->root_key.objectid); if (ret && ret != -ENOENT) { @@ -2519,7 +2529,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file, goto out_end_trans; } if (!btrfs_is_empty_uuid(dest->root_item.received_uuid)) { - ret = btrfs_uuid_tree_rem(trans, root->fs_info, + ret = btrfs_uuid_tree_rem(trans, fs_info, dest->root_item.received_uuid, BTRFS_UUID_KEY_RECEIVED_SUBVOL, dest->root_key.objectid); @@ -2540,7 +2550,7 @@ out_end_trans: out_release: btrfs_subvolume_release_metadata(root, &block_rsv, qgroup_reserved); out_up_write: - up_write(&root->fs_info->subvol_sem); + up_write(&fs_info->subvol_sem); if (err) { spin_lock(&dest->root_item_lock); root_flags = btrfs_root_flags(&dest->root_item); @@ -2644,18 +2654,18 @@ out: static long btrfs_ioctl_add_dev(struct btrfs_root *root, void __user *arg) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_ioctl_vol_args *vol_args; int ret; if (!capable(CAP_SYS_ADMIN)) return -EPERM; - if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running, - 1)) { + if (atomic_xchg(&fs_info->mutually_exclusive_operation_running, 1)) { return BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS; } - mutex_lock(&root->fs_info->volume_mutex); + mutex_lock(&fs_info->volume_mutex); vol_args = memdup_user(arg, sizeof(*vol_args)); if (IS_ERR(vol_args)) { ret = PTR_ERR(vol_args); @@ -2666,18 +2676,20 @@ static long btrfs_ioctl_add_dev(struct btrfs_root *root, void __user *arg) ret = btrfs_init_new_device(root->fs_info, vol_args->name); if (!ret) - btrfs_info(root->fs_info, "disk added %s",vol_args->name); + btrfs_info(fs_info, "disk added %s",vol_args->name); kfree(vol_args); out: - mutex_unlock(&root->fs_info->volume_mutex); - atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0); + mutex_unlock(&fs_info->volume_mutex); + atomic_set(&fs_info->mutually_exclusive_operation_running, 0); return ret; } static long btrfs_ioctl_rm_dev_v2(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_ioctl_vol_args_v2 *vol_args; int ret; @@ -2698,28 +2710,27 @@ static long btrfs_ioctl_rm_dev_v2(struct file *file, void __user *arg) if (vol_args->flags & ~BTRFS_VOL_ARG_V2_FLAGS_SUPPORTED) return -EOPNOTSUPP; - if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running, - 1)) { + if (atomic_xchg(&fs_info->mutually_exclusive_operation_running, 1)) { ret = BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS; goto out; } - mutex_lock(&root->fs_info->volume_mutex); + mutex_lock(&fs_info->volume_mutex); if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID) { ret = btrfs_rm_device(root, NULL, vol_args->devid); } else { vol_args->name[BTRFS_SUBVOL_NAME_MAX] = '\0'; ret = btrfs_rm_device(root, vol_args->name, 0); } - mutex_unlock(&root->fs_info->volume_mutex); - atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0); + mutex_unlock(&fs_info->volume_mutex); + atomic_set(&fs_info->mutually_exclusive_operation_running, 0); if (!ret) { if (vol_args->flags & BTRFS_DEVICE_SPEC_BY_ID) - btrfs_info(root->fs_info, "device deleted: id %llu", + btrfs_info(fs_info, "device deleted: id %llu", vol_args->devid); else - btrfs_info(root->fs_info, "device deleted: %s", + btrfs_info(fs_info, "device deleted: %s", vol_args->name); } out: @@ -2731,7 +2742,9 @@ err_drop: static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_ioctl_vol_args *vol_args; int ret; @@ -2742,8 +2755,7 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg) if (ret) return ret; - if (atomic_xchg(&root->fs_info->mutually_exclusive_operation_running, - 1)) { + if (atomic_xchg(&fs_info->mutually_exclusive_operation_running, 1)) { ret = BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS; goto out_drop_write; } @@ -2755,15 +2767,15 @@ static long btrfs_ioctl_rm_dev(struct file *file, void __user *arg) } vol_args->name[BTRFS_PATH_NAME_MAX] = '\0'; - mutex_lock(&root->fs_info->volume_mutex); + mutex_lock(&fs_info->volume_mutex); ret = btrfs_rm_device(root, vol_args->name, 0); - mutex_unlock(&root->fs_info->volume_mutex); + mutex_unlock(&fs_info->volume_mutex); if (!ret) - btrfs_info(root->fs_info, "disk deleted %s",vol_args->name); + btrfs_info(fs_info, "disk deleted %s",vol_args->name); kfree(vol_args); out: - atomic_set(&root->fs_info->mutually_exclusive_operation_running, 0); + atomic_set(&fs_info->mutually_exclusive_operation_running, 0); out_drop_write: mnt_drop_write_file(file); @@ -2772,9 +2784,10 @@ out_drop_write: static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_ioctl_fs_info_args *fi_args; struct btrfs_device *device; - struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices; + struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; int ret = 0; fi_args = kzalloc(sizeof(*fi_args), GFP_KERNEL); @@ -2783,7 +2796,7 @@ static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg) mutex_lock(&fs_devices->device_list_mutex); fi_args->num_devices = fs_devices->num_devices; - memcpy(&fi_args->fsid, root->fs_info->fsid, sizeof(fi_args->fsid)); + memcpy(&fi_args->fsid, fs_info->fsid, sizeof(fi_args->fsid)); list_for_each_entry(device, &fs_devices->devices, dev_list) { if (device->devid > fi_args->max_id) @@ -2791,9 +2804,9 @@ static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg) } mutex_unlock(&fs_devices->device_list_mutex); - fi_args->nodesize = root->fs_info->super_copy->nodesize; - fi_args->sectorsize = root->fs_info->super_copy->sectorsize; - fi_args->clone_alignment = root->fs_info->super_copy->sectorsize; + fi_args->nodesize = fs_info->super_copy->nodesize; + fi_args->sectorsize = fs_info->super_copy->sectorsize; + fi_args->clone_alignment = fs_info->super_copy->sectorsize; if (copy_to_user(arg, fi_args, sizeof(*fi_args))) ret = -EFAULT; @@ -2804,9 +2817,10 @@ static long btrfs_ioctl_fs_info(struct btrfs_root *root, void __user *arg) static long btrfs_ioctl_dev_info(struct btrfs_root *root, void __user *arg) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_ioctl_dev_info_args *di_args; struct btrfs_device *dev; - struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices; + struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; int ret = 0; char *s_uuid = NULL; @@ -2818,7 +2832,7 @@ static long btrfs_ioctl_dev_info(struct btrfs_root *root, void __user *arg) s_uuid = di_args->uuid; mutex_lock(&fs_devices->device_list_mutex); - dev = btrfs_find_device(root->fs_info, di_args->devid, s_uuid, NULL); + dev = btrfs_find_device(fs_info, di_args->devid, s_uuid, NULL); if (!dev) { ret = -ENODEV; @@ -3393,9 +3407,10 @@ static int clone_copy_inline_extent(struct inode *src, const u64 size, char *inline_data) { + struct btrfs_fs_info *fs_info = btrfs_sb(dst->i_sb); struct btrfs_root *root = BTRFS_I(dst)->root; const u64 aligned_end = ALIGN(new_key->offset + datal, - root->fs_info->sectorsize); + fs_info->sectorsize); int ret; struct btrfs_key key; @@ -3516,6 +3531,7 @@ static int btrfs_clone(struct inode *src, struct inode *inode, const u64 off, const u64 olen, const u64 olen_aligned, const u64 destoff, int no_time_update) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_path *path = NULL; struct extent_buffer *leaf; @@ -3529,10 +3545,9 @@ static int btrfs_clone(struct inode *src, struct inode *inode, u64 last_dest_end = destoff; ret = -ENOMEM; - buf = kmalloc(root->fs_info->nodesize, - GFP_KERNEL | __GFP_NOWARN); + buf = kmalloc(fs_info->nodesize, GFP_KERNEL | __GFP_NOWARN); if (!buf) { - buf = vmalloc(root->fs_info->nodesize); + buf = vmalloc(fs_info->nodesize); if (!buf) return ret; } @@ -3790,7 +3805,7 @@ process_slot: btrfs_release_path(path); last_dest_end = ALIGN(new_key.offset + datal, - root->fs_info->sectorsize); + fs_info->sectorsize); ret = clone_finish_inode_update(trans, inode, last_dest_end, destoff, olen, @@ -3846,10 +3861,11 @@ static noinline int btrfs_clone_files(struct file *file, struct file *file_src, { struct inode *inode = file_inode(file); struct inode *src = file_inode(file_src); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; int ret; u64 len = olen; - u64 bs = root->fs_info->sb->s_blocksize; + u64 bs = fs_info->sb->s_blocksize; int same_inode = src == inode; /* @@ -3990,6 +4006,7 @@ int btrfs_clone_file_range(struct file *src_file, loff_t off, static long btrfs_ioctl_trans_start(struct file *file) { struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_trans_handle *trans; int ret; @@ -4010,7 +4027,7 @@ static long btrfs_ioctl_trans_start(struct file *file) if (ret) goto out; - atomic_inc(&root->fs_info->open_ioctl_trans); + atomic_inc(&fs_info->open_ioctl_trans); ret = -ENOMEM; trans = btrfs_start_ioctl_transaction(root); @@ -4021,7 +4038,7 @@ static long btrfs_ioctl_trans_start(struct file *file) return 0; out_drop: - atomic_dec(&root->fs_info->open_ioctl_trans); + atomic_dec(&fs_info->open_ioctl_trans); mnt_drop_write_file(file); out: return ret; @@ -4030,6 +4047,7 @@ out: static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp) { struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_root *new_root; struct btrfs_dir_item *di; @@ -4060,7 +4078,7 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp) location.type = BTRFS_ROOT_ITEM_KEY; location.offset = (u64)-1; - new_root = btrfs_read_fs_root_no_name(root->fs_info, &location); + new_root = btrfs_read_fs_root_no_name(fs_info, &location); if (IS_ERR(new_root)) { ret = PTR_ERR(new_root); goto out; @@ -4080,14 +4098,14 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp) goto out; } - dir_id = btrfs_super_root_dir(root->fs_info->super_copy); - di = btrfs_lookup_dir_item(trans, root->fs_info->tree_root, path, + dir_id = btrfs_super_root_dir(fs_info->super_copy); + di = btrfs_lookup_dir_item(trans, fs_info->tree_root, path, dir_id, "default", 7, 1); if (IS_ERR_OR_NULL(di)) { btrfs_free_path(path); btrfs_end_transaction(trans, root); - btrfs_err(new_root->fs_info, "Umm, you don't have the default dir" - "item, this isn't going to work"); + btrfs_err(fs_info, + "Umm, you don't have the default dir item, this isn't going to work"); ret = -ENOENT; goto out; } @@ -4097,7 +4115,7 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp) btrfs_mark_buffer_dirty(path->nodes[0]); btrfs_free_path(path); - btrfs_set_fs_incompat(root->fs_info, DEFAULT_SUBVOL); + btrfs_set_fs_incompat(fs_info, DEFAULT_SUBVOL); btrfs_end_transaction(trans, root); out: mnt_drop_write_file(file); @@ -4122,6 +4140,7 @@ void btrfs_get_block_group_info(struct list_head *groups_list, static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_ioctl_space_args space_args; struct btrfs_ioctl_space_info space; struct btrfs_ioctl_space_info *dest; @@ -4148,7 +4167,7 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) info = NULL; rcu_read_lock(); - list_for_each_entry_rcu(tmp, &root->fs_info->space_info, + list_for_each_entry_rcu(tmp, &fs_info->space_info, list) { if (tmp->flags == types[i]) { info = tmp; @@ -4204,7 +4223,7 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) info = NULL; rcu_read_lock(); - list_for_each_entry_rcu(tmp, &root->fs_info->space_info, + list_for_each_entry_rcu(tmp, &fs_info->space_info, list) { if (tmp->flags == types[i]) { info = tmp; @@ -4235,7 +4254,7 @@ static long btrfs_ioctl_space_info(struct btrfs_root *root, void __user *arg) * Add global block reserve */ if (slot_count) { - struct btrfs_block_rsv *block_rsv = &root->fs_info->global_block_rsv; + struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv; spin_lock(&block_rsv->lock); space.total_bytes = block_rsv->size; @@ -4330,7 +4349,7 @@ static noinline long btrfs_ioctl_wait_sync(struct btrfs_root *root, static long btrfs_ioctl_scrub(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct btrfs_fs_info *fs_info = btrfs_sb(file_inode(file)->i_sb); struct btrfs_ioctl_scrub_args *sa; int ret; @@ -4347,7 +4366,7 @@ static long btrfs_ioctl_scrub(struct file *file, void __user *arg) goto out; } - ret = btrfs_scrub_dev(root->fs_info, sa->devid, sa->start, sa->end, + ret = btrfs_scrub_dev(fs_info, sa->devid, sa->start, sa->end, &sa->progress, sa->flags & BTRFS_SCRUB_READONLY, 0); @@ -4417,6 +4436,7 @@ static long btrfs_ioctl_get_dev_stats(struct btrfs_root *root, static long btrfs_ioctl_dev_replace(struct btrfs_root *root, void __user *arg) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_ioctl_dev_replace_args *p; int ret; @@ -4429,27 +4449,25 @@ static long btrfs_ioctl_dev_replace(struct btrfs_root *root, void __user *arg) switch (p->cmd) { case BTRFS_IOCTL_DEV_REPLACE_CMD_START: - if (root->fs_info->sb->s_flags & MS_RDONLY) { + if (fs_info->sb->s_flags & MS_RDONLY) { ret = -EROFS; goto out; } if (atomic_xchg( - &root->fs_info->mutually_exclusive_operation_running, - 1)) { + &fs_info->mutually_exclusive_operation_running, 1)) { ret = BTRFS_ERROR_DEV_EXCL_RUN_IN_PROGRESS; } else { ret = btrfs_dev_replace_by_ioctl(root, p); atomic_set( - &root->fs_info->mutually_exclusive_operation_running, - 0); + &fs_info->mutually_exclusive_operation_running, 0); } break; case BTRFS_IOCTL_DEV_REPLACE_CMD_STATUS: - btrfs_dev_replace_status(root->fs_info, p); + btrfs_dev_replace_status(fs_info, p); ret = 0; break; case BTRFS_IOCTL_DEV_REPLACE_CMD_CANCEL: - ret = btrfs_dev_replace_cancel(root->fs_info, p); + ret = btrfs_dev_replace_cancel(fs_info, p); break; default: ret = -EINVAL; @@ -4773,14 +4791,16 @@ out: static long btrfs_ioctl_balance_ctl(struct btrfs_root *root, int cmd) { + struct btrfs_fs_info *fs_info = root->fs_info; + if (!capable(CAP_SYS_ADMIN)) return -EPERM; switch (cmd) { case BTRFS_BALANCE_CTL_PAUSE: - return btrfs_pause_balance(root->fs_info); + return btrfs_pause_balance(fs_info); case BTRFS_BALANCE_CTL_CANCEL: - return btrfs_cancel_balance(root->fs_info); + return btrfs_cancel_balance(fs_info); } return -EINVAL; @@ -4821,7 +4841,8 @@ out: static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ioctl_quota_ctl_args *sa; struct btrfs_trans_handle *trans = NULL; int ret; @@ -4840,8 +4861,8 @@ static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg) goto drop_write; } - down_write(&root->fs_info->subvol_sem); - trans = btrfs_start_transaction(root->fs_info->tree_root, 2); + down_write(&fs_info->subvol_sem); + trans = btrfs_start_transaction(fs_info->tree_root, 2); if (IS_ERR(trans)) { ret = PTR_ERR(trans); goto out; @@ -4849,22 +4870,22 @@ static long btrfs_ioctl_quota_ctl(struct file *file, void __user *arg) switch (sa->cmd) { case BTRFS_QUOTA_CTL_ENABLE: - ret = btrfs_quota_enable(trans, root->fs_info); + ret = btrfs_quota_enable(trans, fs_info); break; case BTRFS_QUOTA_CTL_DISABLE: - ret = btrfs_quota_disable(trans, root->fs_info); + ret = btrfs_quota_disable(trans, fs_info); break; default: ret = -EINVAL; break; } - err = btrfs_commit_transaction(trans, root->fs_info->tree_root); + err = btrfs_commit_transaction(trans, fs_info->tree_root); if (err && !ret) ret = err; out: kfree(sa); - up_write(&root->fs_info->subvol_sem); + up_write(&fs_info->subvol_sem); drop_write: mnt_drop_write_file(file); return ret; @@ -4872,7 +4893,9 @@ drop_write: static long btrfs_ioctl_qgroup_assign(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_ioctl_qgroup_assign_args *sa; struct btrfs_trans_handle *trans; int ret; @@ -4899,18 +4922,18 @@ static long btrfs_ioctl_qgroup_assign(struct file *file, void __user *arg) /* FIXME: check if the IDs really exist */ if (sa->assign) { - ret = btrfs_add_qgroup_relation(trans, root->fs_info, + ret = btrfs_add_qgroup_relation(trans, fs_info, sa->src, sa->dst); } else { - ret = btrfs_del_qgroup_relation(trans, root->fs_info, + ret = btrfs_del_qgroup_relation(trans, fs_info, sa->src, sa->dst); } /* update qgroup status and info */ - err = btrfs_run_qgroups(trans, root->fs_info); + err = btrfs_run_qgroups(trans, fs_info); if (err < 0) - btrfs_handle_fs_error(root->fs_info, err, - "failed to update qgroup status and info"); + btrfs_handle_fs_error(fs_info, err, + "failed to update qgroup status and info"); err = btrfs_end_transaction(trans, root); if (err && !ret) ret = err; @@ -4924,7 +4947,9 @@ drop_write: static long btrfs_ioctl_qgroup_create(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_ioctl_qgroup_create_args *sa; struct btrfs_trans_handle *trans; int ret; @@ -4956,9 +4981,9 @@ static long btrfs_ioctl_qgroup_create(struct file *file, void __user *arg) /* FIXME: check if the IDs really exist */ if (sa->create) { - ret = btrfs_create_qgroup(trans, root->fs_info, sa->qgroupid); + ret = btrfs_create_qgroup(trans, fs_info, sa->qgroupid); } else { - ret = btrfs_remove_qgroup(trans, root->fs_info, sa->qgroupid); + ret = btrfs_remove_qgroup(trans, fs_info, sa->qgroupid); } err = btrfs_end_transaction(trans, root); @@ -4974,7 +4999,9 @@ drop_write: static long btrfs_ioctl_qgroup_limit(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_ioctl_qgroup_limit_args *sa; struct btrfs_trans_handle *trans; int ret; @@ -5007,7 +5034,7 @@ static long btrfs_ioctl_qgroup_limit(struct file *file, void __user *arg) } /* FIXME: check if the IDs really exist */ - ret = btrfs_limit_qgroup(trans, root->fs_info, qgroupid, &sa->lim); + ret = btrfs_limit_qgroup(trans, fs_info, qgroupid, &sa->lim); err = btrfs_end_transaction(trans, root); if (err && !ret) @@ -5022,7 +5049,8 @@ drop_write: static long btrfs_ioctl_quota_rescan(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ioctl_quota_rescan_args *qsa; int ret; @@ -5044,7 +5072,7 @@ static long btrfs_ioctl_quota_rescan(struct file *file, void __user *arg) goto out; } - ret = btrfs_qgroup_rescan(root->fs_info); + ret = btrfs_qgroup_rescan(fs_info); out: kfree(qsa); @@ -5055,7 +5083,8 @@ drop_write: static long btrfs_ioctl_quota_rescan_status(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ioctl_quota_rescan_args *qsa; int ret = 0; @@ -5066,9 +5095,9 @@ static long btrfs_ioctl_quota_rescan_status(struct file *file, void __user *arg) if (!qsa) return -ENOMEM; - if (root->fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN) { + if (fs_info->qgroup_flags & BTRFS_QGROUP_STATUS_FLAG_RESCAN) { qsa->flags = 1; - qsa->progress = root->fs_info->qgroup_rescan_progress.objectid; + qsa->progress = fs_info->qgroup_rescan_progress.objectid; } if (copy_to_user(arg, qsa, sizeof(*qsa))) @@ -5080,18 +5109,20 @@ static long btrfs_ioctl_quota_rescan_status(struct file *file, void __user *arg) static long btrfs_ioctl_quota_rescan_wait(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); if (!capable(CAP_SYS_ADMIN)) return -EPERM; - return btrfs_qgroup_wait_for_completion(root->fs_info); + return btrfs_qgroup_wait_for_completion(fs_info); } static long _btrfs_ioctl_set_received_subvol(struct file *file, struct btrfs_ioctl_received_subvol_args *sa) { struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_root_item *root_item = &root->root_item; struct btrfs_trans_handle *trans; @@ -5106,7 +5137,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file, if (ret < 0) return ret; - down_write(&root->fs_info->subvol_sem); + down_write(&fs_info->subvol_sem); if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID) { ret = -EINVAL; @@ -5137,8 +5168,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file, BTRFS_UUID_SIZE); if (received_uuid_changed && !btrfs_is_empty_uuid(root_item->received_uuid)) - btrfs_uuid_tree_rem(trans, root->fs_info, - root_item->received_uuid, + btrfs_uuid_tree_rem(trans, fs_info, root_item->received_uuid, BTRFS_UUID_KEY_RECEIVED_SUBVOL, root->root_key.objectid); memcpy(root_item->received_uuid, sa->uuid, BTRFS_UUID_SIZE); @@ -5149,14 +5179,14 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file, btrfs_set_stack_timespec_sec(&root_item->rtime, sa->rtime.sec); btrfs_set_stack_timespec_nsec(&root_item->rtime, sa->rtime.nsec); - ret = btrfs_update_root(trans, root->fs_info->tree_root, + ret = btrfs_update_root(trans, fs_info->tree_root, &root->root_key, &root->root_item); if (ret < 0) { btrfs_end_transaction(trans, root); goto out; } if (received_uuid_changed && !btrfs_is_empty_uuid(sa->uuid)) { - ret = btrfs_uuid_tree_add(trans, root->fs_info, sa->uuid, + ret = btrfs_uuid_tree_add(trans, fs_info, sa->uuid, BTRFS_UUID_KEY_RECEIVED_SUBVOL, root->root_key.objectid); if (ret < 0 && ret != -EEXIST) { @@ -5171,7 +5201,7 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file, } out: - up_write(&root->fs_info->subvol_sem); + up_write(&fs_info->subvol_sem); mnt_drop_write_file(file); return ret; } @@ -5259,20 +5289,22 @@ out: static int btrfs_ioctl_get_fslabel(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); size_t len; int ret; char label[BTRFS_LABEL_SIZE]; - spin_lock(&root->fs_info->super_lock); - memcpy(label, root->fs_info->super_copy->label, BTRFS_LABEL_SIZE); - spin_unlock(&root->fs_info->super_lock); + spin_lock(&fs_info->super_lock); + memcpy(label, fs_info->super_copy->label, BTRFS_LABEL_SIZE); + spin_unlock(&fs_info->super_lock); len = strnlen(label, BTRFS_LABEL_SIZE); if (len == BTRFS_LABEL_SIZE) { - btrfs_warn(root->fs_info, - "label is too long, return the first %zu bytes", --len); + btrfs_warn(fs_info, + "label is too long, return the first %zu bytes", + --len); } ret = copy_to_user(arg, label, len); @@ -5282,8 +5314,10 @@ static int btrfs_ioctl_get_fslabel(struct file *file, void __user *arg) static int btrfs_ioctl_set_fslabel(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; - struct btrfs_super_block *super_block = root->fs_info->super_copy; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_super_block *super_block = fs_info->super_copy; struct btrfs_trans_handle *trans; char label[BTRFS_LABEL_SIZE]; int ret; @@ -5295,8 +5329,9 @@ static int btrfs_ioctl_set_fslabel(struct file *file, void __user *arg) return -EFAULT; if (strnlen(label, BTRFS_LABEL_SIZE) == BTRFS_LABEL_SIZE) { - btrfs_err(root->fs_info, "unable to set label with more than %d bytes", - BTRFS_LABEL_SIZE - 1); + btrfs_err(fs_info, + "unable to set label with more than %d bytes", + BTRFS_LABEL_SIZE - 1); return -EINVAL; } @@ -5310,9 +5345,9 @@ static int btrfs_ioctl_set_fslabel(struct file *file, void __user *arg) goto out_unlock; } - spin_lock(&root->fs_info->super_lock); + spin_lock(&fs_info->super_lock); strcpy(super_block->label, label); - spin_unlock(&root->fs_info->super_lock); + spin_unlock(&fs_info->super_lock); ret = btrfs_commit_transaction(trans, root); out_unlock: @@ -5341,8 +5376,9 @@ int btrfs_ioctl_get_supported_features(void __user *arg) static int btrfs_ioctl_get_features(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; - struct btrfs_super_block *super_block = root->fs_info->super_copy; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + struct btrfs_super_block *super_block = fs_info->super_copy; struct btrfs_ioctl_feature_flags features; features.compat_flags = btrfs_super_compat_flags(super_block); @@ -5360,6 +5396,7 @@ static int check_feature_bits(struct btrfs_root *root, u64 change_mask, u64 flags, u64 supported_flags, u64 safe_set, u64 safe_clear) { + struct btrfs_fs_info *fs_info = root->fs_info; const char *type = btrfs_feature_set_names[set]; char *names; u64 disallowed, unsupported; @@ -5370,14 +5407,14 @@ static int check_feature_bits(struct btrfs_root *root, if (unsupported) { names = btrfs_printable_features(set, unsupported); if (names) { - btrfs_warn(root->fs_info, - "this kernel does not support the %s feature bit%s", - names, strchr(names, ',') ? "s" : ""); + btrfs_warn(fs_info, + "this kernel does not support the %s feature bit%s", + names, strchr(names, ',') ? "s" : ""); kfree(names); } else - btrfs_warn(root->fs_info, - "this kernel does not support %s bits 0x%llx", - type, unsupported); + btrfs_warn(fs_info, + "this kernel does not support %s bits 0x%llx", + type, unsupported); return -EOPNOTSUPP; } @@ -5385,14 +5422,14 @@ static int check_feature_bits(struct btrfs_root *root, if (disallowed) { names = btrfs_printable_features(set, disallowed); if (names) { - btrfs_warn(root->fs_info, - "can't set the %s feature bit%s while mounted", - names, strchr(names, ',') ? "s" : ""); + btrfs_warn(fs_info, + "can't set the %s feature bit%s while mounted", + names, strchr(names, ',') ? "s" : ""); kfree(names); } else - btrfs_warn(root->fs_info, - "can't set %s bits 0x%llx while mounted", - type, disallowed); + btrfs_warn(fs_info, + "can't set %s bits 0x%llx while mounted", + type, disallowed); return -EPERM; } @@ -5400,14 +5437,14 @@ static int check_feature_bits(struct btrfs_root *root, if (disallowed) { names = btrfs_printable_features(set, disallowed); if (names) { - btrfs_warn(root->fs_info, - "can't clear the %s feature bit%s while mounted", - names, strchr(names, ',') ? "s" : ""); + btrfs_warn(fs_info, + "can't clear the %s feature bit%s while mounted", + names, strchr(names, ',') ? "s" : ""); kfree(names); } else - btrfs_warn(root->fs_info, - "can't clear %s bits 0x%llx while mounted", - type, disallowed); + btrfs_warn(fs_info, + "can't clear %s bits 0x%llx while mounted", + type, disallowed); return -EPERM; } @@ -5422,8 +5459,10 @@ check_feature_bits(root, FEAT_##mask_base, change_mask, flags, \ static int btrfs_ioctl_set_features(struct file *file, void __user *arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; - struct btrfs_super_block *super_block = root->fs_info->super_copy; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_super_block *super_block = fs_info->super_copy; struct btrfs_ioctl_feature_flags flags[2]; struct btrfs_trans_handle *trans; u64 newflags; @@ -5465,7 +5504,7 @@ static int btrfs_ioctl_set_features(struct file *file, void __user *arg) goto out_drop_write; } - spin_lock(&root->fs_info->super_lock); + spin_lock(&fs_info->super_lock); newflags = btrfs_super_compat_flags(super_block); newflags |= flags[0].compat_flags & flags[1].compat_flags; newflags &= ~(flags[0].compat_flags & ~flags[1].compat_flags); @@ -5480,7 +5519,7 @@ static int btrfs_ioctl_set_features(struct file *file, void __user *arg) newflags |= flags[0].incompat_flags & flags[1].incompat_flags; newflags &= ~(flags[0].incompat_flags & ~flags[1].incompat_flags); btrfs_set_super_incompat_flags(super_block, newflags); - spin_unlock(&root->fs_info->super_lock); + spin_unlock(&fs_info->super_lock); ret = btrfs_commit_transaction(trans, root); out_drop_write: @@ -5492,7 +5531,9 @@ out_drop_write: long btrfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { - struct btrfs_root *root = BTRFS_I(file_inode(file))->root; + struct inode *inode = file_inode(file); + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); + struct btrfs_root *root = BTRFS_I(inode)->root; void __user *argp = (void __user *)arg; switch (cmd) { @@ -5557,16 +5598,16 @@ long btrfs_ioctl(struct file *file, unsigned int case BTRFS_IOC_SYNC: { int ret; - ret = btrfs_start_delalloc_roots(root->fs_info, 0, -1); + ret = btrfs_start_delalloc_roots(fs_info, 0, -1); if (ret) return ret; - ret = btrfs_sync_fs(file_inode(file)->i_sb, 1); + ret = btrfs_sync_fs(inode->i_sb, 1); /* * The transaction thread may want to do more work, * namely it pokes the cleaner kthread that will start * processing uncleaned subvols. */ - wake_up_process(root->fs_info->transaction_kthread); + wake_up_process(fs_info->transaction_kthread); return ret; } case BTRFS_IOC_START_SYNC: diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index 9b6eb03ff619..b22bb964af58 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -186,6 +186,7 @@ static int __btrfs_add_ordered_extent(struct inode *inode, u64 file_offset, u64 start, u64 len, u64 disk_len, int type, int dio, int compress_type) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root *root = BTRFS_I(inode)->root; struct btrfs_ordered_inode_tree *tree; struct rb_node *node; @@ -234,11 +235,10 @@ static int __btrfs_add_ordered_extent(struct inode *inode, u64 file_offset, &root->ordered_extents); root->nr_ordered_extents++; if (root->nr_ordered_extents == 1) { - spin_lock(&root->fs_info->ordered_root_lock); + spin_lock(&fs_info->ordered_root_lock); BUG_ON(!list_empty(&root->ordered_root)); - list_add_tail(&root->ordered_root, - &root->fs_info->ordered_roots); - spin_unlock(&root->fs_info->ordered_root_lock); + list_add_tail(&root->ordered_root, &fs_info->ordered_roots); + spin_unlock(&fs_info->ordered_root_lock); } spin_unlock(&root->ordered_extent_lock); @@ -303,6 +303,7 @@ int btrfs_dec_test_first_ordered_pending(struct inode *inode, struct btrfs_ordered_extent **cached, u64 *file_offset, u64 io_size, int uptodate) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ordered_inode_tree *tree; struct rb_node *node; struct btrfs_ordered_extent *entry = NULL; @@ -331,14 +332,14 @@ int btrfs_dec_test_first_ordered_pending(struct inode *inode, entry->len); *file_offset = dec_end; if (dec_start > dec_end) { - btrfs_crit(BTRFS_I(inode)->root->fs_info, - "bad ordering dec_start %llu end %llu", dec_start, dec_end); + btrfs_crit(fs_info, "bad ordering dec_start %llu end %llu", + dec_start, dec_end); } to_dec = dec_end - dec_start; if (to_dec > entry->bytes_left) { - btrfs_crit(BTRFS_I(inode)->root->fs_info, - "bad ordered accounting left %llu size %llu", - entry->bytes_left, to_dec); + btrfs_crit(fs_info, + "bad ordered accounting left %llu size %llu", + entry->bytes_left, to_dec); } entry->bytes_left -= to_dec; if (!uptodate) @@ -588,6 +589,7 @@ void btrfs_put_ordered_extent(struct btrfs_ordered_extent *entry) void btrfs_remove_ordered_extent(struct inode *inode, struct btrfs_ordered_extent *entry) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ordered_inode_tree *tree; struct btrfs_root *root = BTRFS_I(inode)->root; struct rb_node *node; @@ -618,11 +620,11 @@ void btrfs_remove_ordered_extent(struct inode *inode, * lock, so be nice and check if trans is set, but ASSERT() so * if it isn't set a developer will notice. */ - spin_lock(&root->fs_info->trans_lock); - trans = root->fs_info->running_transaction; + spin_lock(&fs_info->trans_lock); + trans = fs_info->running_transaction; if (trans) atomic_inc(&trans->use_count); - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); ASSERT(trans); if (trans) { @@ -639,10 +641,10 @@ void btrfs_remove_ordered_extent(struct inode *inode, trace_btrfs_ordered_extent_remove(inode, entry); if (!root->nr_ordered_extents) { - spin_lock(&root->fs_info->ordered_root_lock); + spin_lock(&fs_info->ordered_root_lock); BUG_ON(list_empty(&root->ordered_root)); list_del_init(&root->ordered_root); - spin_unlock(&root->fs_info->ordered_root_lock); + spin_unlock(&fs_info->ordered_root_lock); } spin_unlock(&root->ordered_extent_lock); wake_up(&entry->wait); @@ -664,6 +666,7 @@ static void btrfs_run_ordered_extent_work(struct btrfs_work *work) int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr, const u64 range_start, const u64 range_len) { + struct btrfs_fs_info *fs_info = root->fs_info; LIST_HEAD(splice); LIST_HEAD(skipped); LIST_HEAD(works); @@ -694,8 +697,7 @@ int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr, btrfs_flush_delalloc_helper, btrfs_run_ordered_extent_work, NULL, NULL); list_add_tail(&ordered->work_list, &works); - btrfs_queue_work(root->fs_info->flush_workers, - &ordered->flush_work); + btrfs_queue_work(fs_info->flush_workers, &ordered->flush_work); cond_resched(); spin_lock(&root->ordered_extent_lock); diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c index 8df1c1eb8283..d25bd380a4a7 100644 --- a/fs/btrfs/print-tree.c +++ b/fs/btrfs/print-tree.c @@ -171,6 +171,7 @@ static void print_uuid_item(struct extent_buffer *l, unsigned long offset, void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) { + struct btrfs_fs_info *fs_info = root->fs_info; int i; u32 type, nr; struct btrfs_item *item; @@ -190,7 +191,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) nr = btrfs_header_nritems(l); - btrfs_info(root->fs_info, "leaf %llu total ptrs %d free space %d", + btrfs_info(fs_info, "leaf %llu total ptrs %d free space %d", btrfs_header_bytenr(l), nr, btrfs_leaf_free_space(root, l)); for (i = 0 ; i < nr ; i++) { item = btrfs_item_nr(i); @@ -331,6 +332,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l) void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c) { + struct btrfs_fs_info *fs_info = root->fs_info; int i; u32 nr; struct btrfs_key key; int level; @@ -343,9 +345,9 @@ void btrfs_print_tree(struct btrfs_root *root, struct extent_buffer *c) btrfs_print_leaf(root, c); return; } - btrfs_info(root->fs_info, "node %llu level %d total ptrs %d free spc %u", - btrfs_header_bytenr(c), level, nr, - (u32) BTRFS_NODEPTRS_PER_BLOCK(root->fs_info) - nr); + btrfs_info(fs_info, "node %llu level %d total ptrs %d free spc %u", + btrfs_header_bytenr(c), level, nr, + (u32) BTRFS_NODEPTRS_PER_BLOCK(fs_info) - nr); for (i = 0; i < nr; i++) { btrfs_node_key_to_cpu(c, &key, i); printk(KERN_INFO "\tkey %d (%llu %u %llu) block %llu\n", diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index 40d84fa8a29b..6d45fb4c85f4 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -1015,7 +1015,7 @@ int btrfs_quota_disable(struct btrfs_trans_handle *trans, list_del("a_root->dirty_list); btrfs_tree_lock(quota_root->node); - clean_tree_block(trans, tree_root->fs_info, quota_root->node); + clean_tree_block(trans, fs_info, quota_root->node); btrfs_tree_unlock(quota_root->node); btrfs_free_tree_block(trans, quota_root, quota_root->node, 0, 1); @@ -1188,7 +1188,7 @@ int btrfs_add_qgroup_relation(struct btrfs_trans_handle *trans, } spin_lock(&fs_info->qgroup_lock); - ret = add_relation_rb(quota_root->fs_info, src, dst); + ret = add_relation_rb(fs_info, src, dst); if (ret < 0) { spin_unlock(&fs_info->qgroup_lock); goto out; @@ -1336,7 +1336,7 @@ int btrfs_remove_qgroup(struct btrfs_trans_handle *trans, } spin_lock(&fs_info->qgroup_lock); - del_qgroup_rb(quota_root->fs_info, qgroupid); + del_qgroup_rb(fs_info, qgroupid); spin_unlock(&fs_info->qgroup_lock); out: mutex_unlock(&fs_info->qgroup_ioctl_lock); @@ -2002,8 +2002,7 @@ int btrfs_qgroup_inherit(struct btrfs_trans_handle *trans, i_qgroups = (u64 *)(inherit + 1); for (i = 0; i < inherit->num_qgroups; ++i) { if (*i_qgroups) { - ret = add_relation_rb(quota_root->fs_info, objectid, - *i_qgroups); + ret = add_relation_rb(fs_info, objectid, *i_qgroups); if (ret) goto unlock; } @@ -2632,13 +2631,14 @@ int btrfs_qgroup_release_data(struct inode *inode, u64 start, u64 len) int btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; - if (!root->fs_info->quota_enabled || !is_fstree(root->objectid) || + if (!fs_info->quota_enabled || !is_fstree(root->objectid) || num_bytes == 0) return 0; - BUG_ON(num_bytes != round_down(num_bytes, root->fs_info->nodesize)); + BUG_ON(num_bytes != round_down(num_bytes, fs_info->nodesize)); ret = qgroup_reserve(root, num_bytes); if (ret < 0) return ret; @@ -2648,9 +2648,10 @@ int btrfs_qgroup_reserve_meta(struct btrfs_root *root, int num_bytes) void btrfs_qgroup_free_meta_all(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; int reserved; - if (!root->fs_info->quota_enabled || !is_fstree(root->objectid)) + if (!fs_info->quota_enabled || !is_fstree(root->objectid)) return; reserved = atomic_xchg(&root->qgroup_meta_rsv, 0); @@ -2661,10 +2662,12 @@ void btrfs_qgroup_free_meta_all(struct btrfs_root *root) void btrfs_qgroup_free_meta(struct btrfs_root *root, int num_bytes) { - if (!root->fs_info->quota_enabled || !is_fstree(root->objectid)) + struct btrfs_fs_info *fs_info = root->fs_info; + + if (!fs_info->quota_enabled || !is_fstree(root->objectid)) return; - BUG_ON(num_bytes != round_down(num_bytes, root->fs_info->nodesize)); + BUG_ON(num_bytes != round_down(num_bytes, fs_info->nodesize)); WARN_ON(atomic_read(&root->qgroup_meta_rsv) < num_bytes); atomic_sub(num_bytes, &root->qgroup_meta_rsv); qgroup_free(root, num_bytes); diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c index 1b5fbdcb313b..57fd3ba33ae7 100644 --- a/fs/btrfs/raid56.c +++ b/fs/btrfs/raid56.c @@ -1480,11 +1480,8 @@ cleanup: static void async_rmw_stripe(struct btrfs_raid_bio *rbio) { - btrfs_init_work(&rbio->work, btrfs_rmw_helper, - rmw_work, NULL, NULL); - - btrfs_queue_work(rbio->fs_info->rmw_workers, - &rbio->work); + btrfs_init_work(&rbio->work, btrfs_rmw_helper, rmw_work, NULL, NULL); + btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work); } static void async_read_rebuild(struct btrfs_raid_bio *rbio) @@ -1492,8 +1489,7 @@ static void async_read_rebuild(struct btrfs_raid_bio *rbio) btrfs_init_work(&rbio->work, btrfs_rmw_helper, read_rebuild_work, NULL, NULL); - btrfs_queue_work(rbio->fs_info->rmw_workers, - &rbio->work); + btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work); } /* @@ -1574,8 +1570,7 @@ static int raid56_rmw_stripe(struct btrfs_raid_bio *rbio) bio->bi_private = rbio; bio->bi_end_io = raid_rmw_end_io; - btrfs_bio_wq_end_io(rbio->fs_info, bio, - BTRFS_WQ_ENDIO_RAID56); + btrfs_bio_wq_end_io(rbio->fs_info, bio, BTRFS_WQ_ENDIO_RAID56); submit_bio(READ, bio); } @@ -1743,6 +1738,7 @@ static void btrfs_raid_unplug(struct blk_plug_cb *cb, bool from_schedule) int raid56_parity_write(struct btrfs_root *root, struct bio *bio, struct btrfs_bio *bbio, u64 stripe_len) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_raid_bio *rbio; struct btrfs_plug_cb *plug = NULL; struct blk_plug_cb *cb; @@ -1757,7 +1753,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio, rbio->bio_list_bytes = bio->bi_iter.bi_size; rbio->operation = BTRFS_RBIO_WRITE; - btrfs_bio_counter_inc_noblocked(root->fs_info); + btrfs_bio_counter_inc_noblocked(fs_info); rbio->generic_bio_cnt = 1; /* @@ -1767,16 +1763,15 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio, if (rbio_is_full(rbio)) { ret = full_stripe_write(rbio); if (ret) - btrfs_bio_counter_dec(root->fs_info); + btrfs_bio_counter_dec(fs_info); return ret; } - cb = blk_check_plugged(btrfs_raid_unplug, root->fs_info, - sizeof(*plug)); + cb = blk_check_plugged(btrfs_raid_unplug, fs_info, sizeof(*plug)); if (cb) { plug = container_of(cb, struct btrfs_plug_cb, cb); if (!plug->info) { - plug->info = root->fs_info; + plug->info = fs_info; INIT_LIST_HEAD(&plug->rbio_list); } list_add_tail(&rbio->plug_list, &plug->rbio_list); @@ -1784,7 +1779,7 @@ int raid56_parity_write(struct btrfs_root *root, struct bio *bio, } else { ret = __raid56_parity_write(rbio); if (ret) - btrfs_bio_counter_dec(root->fs_info); + btrfs_bio_counter_dec(fs_info); } return ret; } @@ -2098,8 +2093,7 @@ static int __raid56_parity_recover(struct btrfs_raid_bio *rbio) bio->bi_private = rbio; bio->bi_end_io = raid_recover_end_io; - btrfs_bio_wq_end_io(rbio->fs_info, bio, - BTRFS_WQ_ENDIO_RAID56); + btrfs_bio_wq_end_io(rbio->fs_info, bio, BTRFS_WQ_ENDIO_RAID56); submit_bio(READ, bio); } @@ -2123,6 +2117,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio, struct btrfs_bio *bbio, u64 stripe_len, int mirror_num, int generic_io) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_raid_bio *rbio; int ret; @@ -2147,7 +2142,7 @@ int raid56_parity_recover(struct btrfs_root *root, struct bio *bio, } if (generic_io) { - btrfs_bio_counter_inc_noblocked(root->fs_info); + btrfs_bio_counter_inc_noblocked(fs_info); rbio->generic_bio_cnt = 1; } else { btrfs_get_bbio(bbio); @@ -2210,6 +2205,7 @@ raid56_parity_alloc_scrub_rbio(struct btrfs_root *root, struct bio *bio, struct btrfs_device *scrub_dev, unsigned long *dbitmap, int stripe_nsectors) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_raid_bio *rbio; int i; @@ -2232,7 +2228,7 @@ raid56_parity_alloc_scrub_rbio(struct btrfs_root *root, struct bio *bio, } /* Now we just support the sectorsize equals to page size */ - ASSERT(root->fs_info->sectorsize == PAGE_SIZE); + ASSERT(fs_info->sectorsize == PAGE_SIZE); ASSERT(rbio->stripe_npages == stripe_nsectors); bitmap_copy(rbio->dbitmap, dbitmap, stripe_nsectors); @@ -2611,8 +2607,7 @@ static void raid56_parity_scrub_stripe(struct btrfs_raid_bio *rbio) bio->bi_private = rbio; bio->bi_end_io = raid56_parity_scrub_end_io; - btrfs_bio_wq_end_io(rbio->fs_info, bio, - BTRFS_WQ_ENDIO_RAID56); + btrfs_bio_wq_end_io(rbio->fs_info, bio, BTRFS_WQ_ENDIO_RAID56); submit_bio(READ, bio); } @@ -2640,8 +2635,7 @@ static void async_scrub_parity(struct btrfs_raid_bio *rbio) btrfs_init_work(&rbio->work, btrfs_rmw_helper, scrub_parity_work, NULL, NULL); - btrfs_queue_work(rbio->fs_info->rmw_workers, - &rbio->work); + btrfs_queue_work(rbio->fs_info->rmw_workers, &rbio->work); } void raid56_parity_submit_scrub_rbio(struct btrfs_raid_bio *rbio) diff --git a/fs/btrfs/reada.c b/fs/btrfs/reada.c index 0e7a15556422..bfe1d99b3785 100644 --- a/fs/btrfs/reada.c +++ b/fs/btrfs/reada.c @@ -343,7 +343,7 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root, if (!re) return NULL; - blocksize = root->fs_info->nodesize; + blocksize = fs_info->nodesize; re->logical = logical; re->top = *top; INIT_LIST_HEAD(&re->extctl); @@ -360,7 +360,7 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root, goto error; if (bbio->num_stripes > BTRFS_MAX_MIRRORS) { - btrfs_err(root->fs_info, + btrfs_err(fs_info, "readahead: more than %d copies not supported", BTRFS_MAX_MIRRORS); goto error; @@ -964,11 +964,10 @@ int btrfs_reada_wait(void *handle) reada_start_machine(fs_info); wait_event_timeout(rc->wait, atomic_read(&rc->elems) == 0, 5 * HZ); - dump_devs(rc->root->fs_info, - atomic_read(&rc->elems) < 10 ? 1 : 0); + dump_devs(fs_info, atomic_read(&rc->elems) < 10 ? 1 : 0); } - dump_devs(rc->root->fs_info, atomic_read(&rc->elems) < 10 ? 1 : 0); + dump_devs(fs_info, atomic_read(&rc->elems) < 10 ? 1 : 0); kref_put(&rc->refcnt, reada_control_release); diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index dd1ce022ca93..3b29688386d6 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -1275,9 +1275,10 @@ fail: */ static int __must_check __add_reloc_root(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct rb_node *rb_node; struct mapping_node *node; - struct reloc_control *rc = root->fs_info->reloc_ctl; + struct reloc_control *rc = fs_info->reloc_ctl; node = kmalloc(sizeof(*node), GFP_NOFS); if (!node) @@ -1291,7 +1292,7 @@ static int __must_check __add_reloc_root(struct btrfs_root *root) node->bytenr, &node->rb_node); spin_unlock(&rc->reloc_root_tree.lock); if (rb_node) { - btrfs_panic(root->fs_info, -EEXIST, "Duplicate root found " + btrfs_panic(fs_info, -EEXIST, "Duplicate root found " "for start=%llu while inserting into relocation " "tree", node->bytenr); kfree(node); @@ -1308,9 +1309,10 @@ static int __must_check __add_reloc_root(struct btrfs_root *root) */ static void __del_reloc_root(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct rb_node *rb_node; struct mapping_node *node = NULL; - struct reloc_control *rc = root->fs_info->reloc_ctl; + struct reloc_control *rc = fs_info->reloc_ctl; spin_lock(&rc->reloc_root_tree.lock); rb_node = tree_search(&rc->reloc_root_tree.rb_root, @@ -1325,9 +1327,9 @@ static void __del_reloc_root(struct btrfs_root *root) return; BUG_ON((struct btrfs_root *)node->data != root); - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); list_del_init(&root->root_list); - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); kfree(node); } @@ -1337,9 +1339,10 @@ static void __del_reloc_root(struct btrfs_root *root) */ static int __update_reloc_root(struct btrfs_root *root, u64 new_bytenr) { + struct btrfs_fs_info *fs_info = root->fs_info; struct rb_node *rb_node; struct mapping_node *node = NULL; - struct reloc_control *rc = root->fs_info->reloc_ctl; + struct reloc_control *rc = fs_info->reloc_ctl; spin_lock(&rc->reloc_root_tree.lock); rb_node = tree_search(&rc->reloc_root_tree.rb_root, @@ -1367,6 +1370,7 @@ static int __update_reloc_root(struct btrfs_root *root, u64 new_bytenr) static struct btrfs_root *create_reloc_root(struct btrfs_trans_handle *trans, struct btrfs_root *root, u64 objectid) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_root *reloc_root; struct extent_buffer *eb; struct btrfs_root_item *root_item; @@ -1424,12 +1428,12 @@ static struct btrfs_root *create_reloc_root(struct btrfs_trans_handle *trans, btrfs_tree_unlock(eb); free_extent_buffer(eb); - ret = btrfs_insert_root(trans, root->fs_info->tree_root, + ret = btrfs_insert_root(trans, fs_info->tree_root, &root_key, root_item); BUG_ON(ret); kfree(root_item); - reloc_root = btrfs_read_fs_root(root->fs_info->tree_root, &root_key); + reloc_root = btrfs_read_fs_root(fs_info->tree_root, &root_key); BUG_ON(IS_ERR(reloc_root)); reloc_root->last_trans = trans->transid; return reloc_root; @@ -1442,8 +1446,9 @@ static struct btrfs_root *create_reloc_root(struct btrfs_trans_handle *trans, int btrfs_init_reloc_root(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_root *reloc_root; - struct reloc_control *rc = root->fs_info->reloc_ctl; + struct reloc_control *rc = fs_info->reloc_ctl; struct btrfs_block_rsv *rsv; int clear_rsv = 0; int ret; @@ -1479,6 +1484,7 @@ int btrfs_init_reloc_root(struct btrfs_trans_handle *trans, int btrfs_update_reloc_root(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_root *reloc_root; struct btrfs_root_item *root_item; int ret; @@ -1489,7 +1495,7 @@ int btrfs_update_reloc_root(struct btrfs_trans_handle *trans, reloc_root = root->reloc_root; root_item = &reloc_root->root_item; - if (root->fs_info->reloc_ctl->merge_reloc_tree && + if (fs_info->reloc_ctl->merge_reloc_tree && btrfs_root_refs(root_item) == 0) { root->reloc_root = NULL; __del_reloc_root(reloc_root); @@ -1501,7 +1507,7 @@ int btrfs_update_reloc_root(struct btrfs_trans_handle *trans, reloc_root->commit_root = btrfs_root_node(reloc_root); } - ret = btrfs_update_root(trans, root->fs_info->tree_root, + ret = btrfs_update_root(trans, fs_info->tree_root, &reloc_root->root_key, root_item); BUG_ON(ret); @@ -1629,6 +1635,7 @@ int replace_file_extents(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *leaf) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_key key; struct btrfs_file_extent_item *fi; struct inode *inode = NULL; @@ -1685,8 +1692,8 @@ int replace_file_extents(struct btrfs_trans_handle *trans, end = key.offset + btrfs_file_extent_num_bytes(leaf, fi); WARN_ON(!IS_ALIGNED(key.offset, - root->fs_info->sectorsize)); - WARN_ON(!IS_ALIGNED(end, root->fs_info->sectorsize)); + fs_info->sectorsize)); + WARN_ON(!IS_ALIGNED(end, fs_info->sectorsize)); end--; ret = try_lock_extent(&BTRFS_I(inode)->io_tree, key.offset, end); @@ -1764,6 +1771,7 @@ int replace_path(struct btrfs_trans_handle *trans, struct btrfs_path *path, struct btrfs_key *next_key, int lowest_level, int max_level) { + struct btrfs_fs_info *fs_info = dest->fs_info; struct extent_buffer *eb; struct extent_buffer *parent; struct btrfs_key key; @@ -1821,7 +1829,7 @@ again: btrfs_node_key_to_cpu(parent, next_key, slot + 1); old_bytenr = btrfs_node_blockptr(parent, slot); - blocksize = dest->fs_info->nodesize; + blocksize = fs_info->nodesize; old_ptr_gen = btrfs_node_ptr_generation(parent, slot); if (level <= max_level) { @@ -2025,6 +2033,7 @@ static int invalidate_extent_cache(struct btrfs_root *root, struct btrfs_key *min_key, struct btrfs_key *max_key) { + struct btrfs_fs_info *fs_info = root->fs_info; struct inode *inode = NULL; u64 objectid; u64 start, end; @@ -2059,7 +2068,7 @@ static int invalidate_extent_cache(struct btrfs_root *root, start = 0; else { start = min_key->offset; - WARN_ON(!IS_ALIGNED(start, root->fs_info->sectorsize)); + WARN_ON(!IS_ALIGNED(start, fs_info->sectorsize)); } } else { start = 0; @@ -2074,7 +2083,7 @@ static int invalidate_extent_cache(struct btrfs_root *root, if (max_key->offset == 0) continue; end = max_key->offset; - WARN_ON(!IS_ALIGNED(end, root->fs_info->sectorsize)); + WARN_ON(!IS_ALIGNED(end, fs_info->sectorsize)); end--; } } else { @@ -2114,6 +2123,7 @@ static int find_next_key(struct btrfs_path *path, int level, static noinline_for_stack int merge_reloc_root(struct reloc_control *rc, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = rc->extent_root->fs_info; LIST_HEAD(inode_list); struct btrfs_key key; struct btrfs_key next_key; @@ -2162,7 +2172,7 @@ static noinline_for_stack int merge_reloc_root(struct reloc_control *rc, btrfs_unlock_up_safe(path, 0); } - min_reserved = root->fs_info->nodesize * (BTRFS_MAX_LEVEL - 1) * 2; + min_reserved = fs_info->nodesize * (BTRFS_MAX_LEVEL - 1) * 2; memset(&next_key, 0, sizeof(next_key)); while (1) { @@ -2268,16 +2278,17 @@ static noinline_for_stack int prepare_to_merge(struct reloc_control *rc, int err) { struct btrfs_root *root = rc->extent_root; + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_root *reloc_root; struct btrfs_trans_handle *trans; LIST_HEAD(reloc_roots); u64 num_bytes = 0; int ret; - mutex_lock(&root->fs_info->reloc_mutex); - rc->merging_rsv_size += root->fs_info->nodesize * (BTRFS_MAX_LEVEL - 1) * 2; + mutex_lock(&fs_info->reloc_mutex); + rc->merging_rsv_size += fs_info->nodesize * (BTRFS_MAX_LEVEL - 1) * 2; rc->merging_rsv_size += rc->nodes_relocated * 2; - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->reloc_mutex); again: if (!err) { @@ -2312,8 +2323,7 @@ again: struct btrfs_root, root_list); list_del_init(&reloc_root->root_list); - root = read_fs_root(reloc_root->fs_info, - reloc_root->root_key.offset); + root = read_fs_root(fs_info, reloc_root->root_key.offset); BUG_ON(IS_ERR(root)); BUG_ON(root->reloc_root != reloc_root); @@ -2352,6 +2362,7 @@ void free_reloc_roots(struct list_head *list) static noinline_for_stack void merge_reloc_roots(struct reloc_control *rc) { + struct btrfs_fs_info *fs_info = rc->extent_root->fs_info; struct btrfs_root *root; struct btrfs_root *reloc_root; u64 last_snap; @@ -2369,9 +2380,9 @@ again: * adding their roots to the list while we are * doing this splice */ - mutex_lock(&root->fs_info->reloc_mutex); + mutex_lock(&fs_info->reloc_mutex); list_splice_init(&rc->reloc_roots, &reloc_roots); - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->reloc_mutex); while (!list_empty(&reloc_roots)) { found = 1; @@ -2379,7 +2390,7 @@ again: struct btrfs_root, root_list); if (btrfs_root_refs(&reloc_root->root_item) > 0) { - root = read_fs_root(reloc_root->fs_info, + root = read_fs_root(fs_info, reloc_root->root_key.offset); BUG_ON(IS_ERR(root)); BUG_ON(root->reloc_root != reloc_root); @@ -2418,14 +2429,14 @@ again: } out: if (ret) { - btrfs_handle_fs_error(root->fs_info, ret, NULL); + btrfs_handle_fs_error(fs_info, ret, NULL); if (!list_empty(&reloc_roots)) free_reloc_roots(&reloc_roots); /* new reloc root may be added */ - mutex_lock(&root->fs_info->reloc_mutex); + mutex_lock(&fs_info->reloc_mutex); list_splice_init(&rc->reloc_roots, &reloc_roots); - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->reloc_mutex); if (!list_empty(&reloc_roots)) free_reloc_roots(&reloc_roots); } @@ -2447,12 +2458,13 @@ static void free_block_list(struct rb_root *blocks) static int record_reloc_root_in_trans(struct btrfs_trans_handle *trans, struct btrfs_root *reloc_root) { + struct btrfs_fs_info *fs_info = reloc_root->fs_info; struct btrfs_root *root; if (reloc_root->last_trans == trans->transid) return 0; - root = read_fs_root(reloc_root->fs_info, reloc_root->root_key.offset); + root = read_fs_root(fs_info, reloc_root->root_key.offset); BUG_ON(IS_ERR(root)); BUG_ON(root->reloc_root != reloc_root); @@ -2562,6 +2574,7 @@ static noinline_for_stack u64 calcu_metadata_size(struct reloc_control *rc, struct backref_node *node, int reserve) { + struct btrfs_fs_info *fs_info = rc->extent_root->fs_info; struct backref_node *next = node; struct backref_edge *edge; struct backref_edge *edges[BTRFS_MAX_LEVEL - 1]; @@ -2576,7 +2589,7 @@ u64 calcu_metadata_size(struct reloc_control *rc, if (next->processed && (reserve || next != node)) break; - num_bytes += rc->extent_root->fs_info->nodesize; + num_bytes += fs_info->nodesize; if (list_empty(&next->upper)) break; @@ -2595,6 +2608,7 @@ static int reserve_metadata_space(struct btrfs_trans_handle *trans, struct reloc_control *rc, struct backref_node *node) { + struct btrfs_fs_info *fs_info = rc->extent_root->fs_info; struct btrfs_root *root = rc->extent_root; u64 num_bytes; int ret; @@ -2608,7 +2622,7 @@ static int reserve_metadata_space(struct btrfs_trans_handle *trans, BTRFS_RESERVE_FLUSH_ALL); if (ret) { if (ret == -EAGAIN) { - tmp = rc->extent_root->fs_info->nodesize * + tmp = fs_info->nodesize * RELOCATION_RESERVED_NODES; while (tmp <= rc->reserved_bytes) tmp <<= 1; @@ -2619,8 +2633,7 @@ static int reserve_metadata_space(struct btrfs_trans_handle *trans, * space for relocation and we will return earlier in * enospc case. */ - rc->block_rsv->size = tmp + - rc->extent_root->fs_info->nodesize * + rc->block_rsv->size = tmp + fs_info->nodesize * RELOCATION_RESERVED_NODES; } return ret; @@ -3068,7 +3081,7 @@ static noinline_for_stack int setup_extent_mapping(struct inode *inode, u64 start, u64 end, u64 block_start) { - struct btrfs_root *root = BTRFS_I(inode)->root; + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree; struct extent_map *em; int ret = 0; @@ -3081,7 +3094,7 @@ int setup_extent_mapping(struct inode *inode, u64 start, u64 end, em->len = end + 1 - start; em->block_len = em->len; em->block_start = block_start; - em->bdev = root->fs_info->fs_devices->latest_bdev; + em->bdev = fs_info->fs_devices->latest_bdev; set_bit(EXTENT_FLAG_PINNED, &em->flags); lock_extent(&BTRFS_I(inode)->io_tree, start, end); @@ -3356,11 +3369,11 @@ static int __add_tree_block(struct reloc_control *rc, u64 bytenr, u32 blocksize, struct rb_root *blocks) { + struct btrfs_fs_info *fs_info = rc->extent_root->fs_info; struct btrfs_path *path; struct btrfs_key key; int ret; - bool skinny = btrfs_fs_incompat(rc->extent_root->fs_info, - SKINNY_METADATA); + bool skinny = btrfs_fs_incompat(fs_info, SKINNY_METADATA); if (tree_block_processed(bytenr, rc)) return 0; @@ -3493,6 +3506,7 @@ static int find_data_references(struct reloc_control *rc, struct btrfs_extent_data_ref *ref, struct rb_root *blocks) { + struct btrfs_fs_info *fs_info = rc->extent_root->fs_info; struct btrfs_path *path; struct tree_block *block; struct btrfs_root *root; @@ -3519,8 +3533,7 @@ static int find_data_references(struct reloc_control *rc, * it and redo the search. */ if (ref_root == BTRFS_ROOT_TREE_OBJECTID) { - ret = delete_block_group_cache(rc->extent_root->fs_info, - rc->block_group, + ret = delete_block_group_cache(fs_info, rc->block_group, NULL, ref_objectid); if (ret != -ENOENT) return ret; @@ -3532,7 +3545,7 @@ static int find_data_references(struct reloc_control *rc, return -ENOMEM; path->reada = READA_FORWARD; - root = read_fs_root(rc->extent_root->fs_info, ref_root); + root = read_fs_root(fs_info, ref_root); if (IS_ERR(root)) { err = PTR_ERR(root); goto out; @@ -3758,6 +3771,7 @@ static noinline_for_stack int find_next_extent(struct reloc_control *rc, struct btrfs_path *path, struct btrfs_key *extent_key) { + struct btrfs_fs_info *fs_info = rc->extent_root->fs_info; struct btrfs_key key; struct extent_buffer *leaf; u64 start, end, last; @@ -3809,7 +3823,7 @@ next: } if (key.type == BTRFS_METADATA_ITEM_KEY && - key.objectid + rc->extent_root->fs_info->nodesize <= + key.objectid + fs_info->nodesize <= rc->search_start) { path->slots[0]++; goto next; @@ -3827,7 +3841,7 @@ next: rc->search_start = key.objectid + key.offset; else rc->search_start = key.objectid + - rc->extent_root->fs_info->nodesize; + fs_info->nodesize; memcpy(extent_key, &key, sizeof(key)); return 0; } @@ -4163,7 +4177,7 @@ struct inode *create_reloc_inode(struct btrfs_fs_info *fs_info, key.objectid = objectid; key.type = BTRFS_INODE_ITEM_KEY; key.offset = 0; - inode = btrfs_iget(root->fs_info->sb, &key, root, NULL); + inode = btrfs_iget(fs_info->sb, &key, root, NULL); BUG_ON(IS_ERR(inode) || is_bad_inode(inode)); BTRFS_I(inode)->index_cnt = group->key.objectid; @@ -4251,8 +4265,8 @@ int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start) goto out; } - btrfs_info(extent_root->fs_info, "relocating block group %llu flags %llu", - rc->block_group->key.objectid, rc->block_group->flags); + btrfs_info(fs_info, "relocating block group %llu flags %llu", + rc->block_group->key.objectid, rc->block_group->flags); btrfs_wait_block_group_reservations(rc->block_group); btrfs_wait_nocow_writers(rc->block_group); @@ -4272,8 +4286,7 @@ int btrfs_relocate_block_group(struct btrfs_fs_info *fs_info, u64 group_start) if (rc->extents_found == 0) break; - btrfs_info(extent_root->fs_info, "found %llu extents", - rc->extents_found); + btrfs_info(fs_info, "found %llu extents", rc->extents_found); if (rc->stage == MOVE_DATA_EXTENTS && rc->found_file_extent) { ret = btrfs_wait_ordered_range(rc->data_inode, 0, @@ -4302,10 +4315,11 @@ out: static noinline_for_stack int mark_garbage_root(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_trans_handle *trans; int ret, err; - trans = btrfs_start_transaction(root->fs_info->tree_root, 0); + trans = btrfs_start_transaction(fs_info->tree_root, 0); if (IS_ERR(trans)) return PTR_ERR(trans); @@ -4313,10 +4327,10 @@ static noinline_for_stack int mark_garbage_root(struct btrfs_root *root) sizeof(root->root_item.drop_progress)); root->root_item.drop_level = 0; btrfs_set_root_refs(&root->root_item, 0); - ret = btrfs_update_root(trans, root->fs_info->tree_root, + ret = btrfs_update_root(trans, fs_info->tree_root, &root->root_key, &root->root_item); - err = btrfs_end_transaction(trans, root->fs_info->tree_root); + err = btrfs_end_transaction(trans, fs_info->tree_root); if (err) return err; return ret; @@ -4330,6 +4344,7 @@ static noinline_for_stack int mark_garbage_root(struct btrfs_root *root) */ int btrfs_recover_relocation(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; LIST_HEAD(reloc_roots); struct btrfs_key key; struct btrfs_root *fs_root; @@ -4351,7 +4366,7 @@ int btrfs_recover_relocation(struct btrfs_root *root) key.offset = (u64)-1; while (1) { - ret = btrfs_search_slot(NULL, root->fs_info->tree_root, &key, + ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0); if (ret < 0) { err = ret; @@ -4379,7 +4394,7 @@ int btrfs_recover_relocation(struct btrfs_root *root) list_add(&reloc_root->root_list, &reloc_roots); if (btrfs_root_refs(&reloc_root->root_item) > 0) { - fs_root = read_fs_root(root->fs_info, + fs_root = read_fs_root(fs_info, reloc_root->root_key.offset); if (IS_ERR(fs_root)) { ret = PTR_ERR(fs_root); @@ -4405,13 +4420,13 @@ int btrfs_recover_relocation(struct btrfs_root *root) if (list_empty(&reloc_roots)) goto out; - rc = alloc_reloc_control(root->fs_info); + rc = alloc_reloc_control(fs_info); if (!rc) { err = -ENOMEM; goto out; } - rc->extent_root = root->fs_info->extent_root; + rc->extent_root = fs_info->extent_root; set_reloc_control(rc); @@ -4435,8 +4450,7 @@ int btrfs_recover_relocation(struct btrfs_root *root) continue; } - fs_root = read_fs_root(root->fs_info, - reloc_root->root_key.offset); + fs_root = read_fs_root(fs_info, reloc_root->root_key.offset); if (IS_ERR(fs_root)) { err = PTR_ERR(fs_root); goto out_free; @@ -4470,8 +4484,7 @@ out: if (err == 0) { /* cleanup orphan inode in data relocation tree */ - fs_root = read_fs_root(root->fs_info, - BTRFS_DATA_RELOC_TREE_OBJECTID); + fs_root = read_fs_root(fs_info, BTRFS_DATA_RELOC_TREE_OBJECTID); if (IS_ERR(fs_root)) err = PTR_ERR(fs_root); else @@ -4488,9 +4501,9 @@ out: */ int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_ordered_sum *sums; struct btrfs_ordered_extent *ordered; - struct btrfs_root *root = BTRFS_I(inode)->root; int ret; u64 disk_bytenr; u64 new_bytenr; @@ -4500,7 +4513,7 @@ int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len) BUG_ON(ordered->file_offset != file_pos || ordered->len != len); disk_bytenr = file_pos + BTRFS_I(inode)->index_cnt; - ret = btrfs_lookup_csums_range(root->fs_info->csum_root, disk_bytenr, + ret = btrfs_lookup_csums_range(fs_info->csum_root, disk_bytenr, disk_bytenr + len - 1, &list, 0); if (ret) goto out; @@ -4535,13 +4548,14 @@ int btrfs_reloc_cow_block(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct extent_buffer *buf, struct extent_buffer *cow) { + struct btrfs_fs_info *fs_info = root->fs_info; struct reloc_control *rc; struct backref_node *node; int first_cow = 0; int level; int ret = 0; - rc = root->fs_info->reloc_ctl; + rc = fs_info->reloc_ctl; if (!rc) return 0; diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c index a2a99da4d091..f069aa590d58 100644 --- a/fs/btrfs/root-tree.c +++ b/fs/btrfs/root-tree.c @@ -137,6 +137,7 @@ int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_key *key, struct btrfs_root_item *item) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct extent_buffer *l; int ret; @@ -156,8 +157,8 @@ int btrfs_update_root(struct btrfs_trans_handle *trans, struct btrfs_root if (ret != 0) { btrfs_print_leaf(root, path->nodes[0]); - btrfs_crit(root->fs_info, "unable to update root key %llu %u %llu", - key->objectid, key->type, key->offset); + btrfs_crit(fs_info, "unable to update root key %llu %u %llu", + key->objectid, key->type, key->offset); BUG_ON(1); } @@ -232,7 +233,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info) int ret; bool can_recover = true; - if (tree_root->fs_info->sb->s_flags & MS_RDONLY) + if (fs_info->sb->s_flags & MS_RDONLY) can_recover = false; path = btrfs_alloc_path(); @@ -285,7 +286,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info) trans = btrfs_join_transaction(tree_root); if (IS_ERR(trans)) { err = PTR_ERR(trans); - btrfs_handle_fs_error(tree_root->fs_info, err, + btrfs_handle_fs_error(fs_info, err, "Failed to start trans to delete " "orphan item"); break; @@ -294,7 +295,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info) root_key.objectid); btrfs_end_transaction(trans, tree_root); if (err) { - btrfs_handle_fs_error(tree_root->fs_info, err, + btrfs_handle_fs_error(fs_info, err, "Failed to delete root orphan " "item"); break; @@ -310,7 +311,7 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info) set_bit(BTRFS_ROOT_ORPHAN_ITEM_INSERTED, &root->state); - err = btrfs_insert_fs_root(root->fs_info, root); + err = btrfs_insert_fs_root(fs_info, root); /* * The root might have been inserted already, as before we look * for orphan roots, log replay might have happened, which diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c index c94774630bae..92b0952bf994 100644 --- a/fs/btrfs/scrub.c +++ b/fs/btrfs/scrub.c @@ -489,8 +489,8 @@ struct scrub_ctx *scrub_setup_ctx(struct btrfs_device *dev, int is_dev_replace) sctx->bios[i]->next_free = -1; } sctx->first_free = 0; - sctx->nodesize = dev->fs_info->nodesize; - sctx->sectorsize = dev->fs_info->sectorsize; + sctx->nodesize = fs_info->nodesize; + sctx->sectorsize = fs_info->sectorsize; atomic_set(&sctx->bios_in_flight, 0); atomic_set(&sctx->workers_pending, 0); atomic_set(&sctx->cancel_req, 0); @@ -788,6 +788,7 @@ out: static void scrub_fixup_nodatasum(struct btrfs_work *work) { + struct btrfs_fs_info *fs_info; int ret; struct scrub_fixup_nodatasum *fixup; struct scrub_ctx *sctx; @@ -797,6 +798,7 @@ static void scrub_fixup_nodatasum(struct btrfs_work *work) fixup = container_of(work, struct scrub_fixup_nodatasum, work); sctx = fixup->sctx; + fs_info = fixup->root->fs_info; path = btrfs_alloc_path(); if (!path) { @@ -822,9 +824,8 @@ static void scrub_fixup_nodatasum(struct btrfs_work *work) * (once it's finished) and rewrite the failed sector if a good copy * can be found. */ - ret = iterate_inodes_from_logical(fixup->logical, fixup->root->fs_info, - path, scrub_fixup_readpage, - fixup); + ret = iterate_inodes_from_logical(fixup->logical, fs_info, path, + scrub_fixup_readpage, fixup); if (ret < 0) { uncorrectable = 1; goto out; @@ -842,9 +843,9 @@ out: spin_lock(&sctx->stat_lock); ++sctx->stat.uncorrectable_errors; spin_unlock(&sctx->stat_lock); - btrfs_dev_replace_stats_inc(&sctx->fs_info->dev_replace. - num_uncorrectable_read_errors); - btrfs_err_rl_in_rcu(sctx->fs_info, + btrfs_dev_replace_stats_inc( + &fs_info->dev_replace.num_uncorrectable_read_errors); + btrfs_err_rl_in_rcu(fs_info, "unable to fixup (nodatasum) error at logical %llu on dev %s", fixup->logical, rcu_str_deref(fixup->dev->name)); } @@ -1561,6 +1562,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad, { struct scrub_page *page_bad = sblock_bad->pagev[page_num]; struct scrub_page *page_good = sblock_good->pagev[page_num]; + struct btrfs_fs_info *fs_info = sblock_bad->sctx->fs_info; BUG_ON(page_bad->page == NULL); BUG_ON(page_good->page == NULL); @@ -1570,9 +1572,8 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad, int ret; if (!page_bad->dev->bdev) { - btrfs_warn_rl(sblock_bad->sctx->fs_info, - "scrub_repair_page_from_good_copy(bdev == NULL) " - "is unexpected"); + btrfs_warn_rl(fs_info, + "scrub_repair_page_from_good_copy(bdev == NULL) is unexpected"); return -EIO; } @@ -1592,8 +1593,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad, btrfs_dev_stat_inc_and_print(page_bad->dev, BTRFS_DEV_STAT_WRITE_ERRS); btrfs_dev_replace_stats_inc( - &sblock_bad->sctx->fs_info-> - dev_replace.num_write_errors); + &fs_info->dev_replace.num_write_errors); bio_put(bio); return -EIO; } @@ -1605,6 +1605,7 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad, static void scrub_write_block_to_dev_replace(struct scrub_block *sblock) { + struct btrfs_fs_info *fs_info = sblock->sctx->fs_info; int page_num; /* @@ -1620,8 +1621,7 @@ static void scrub_write_block_to_dev_replace(struct scrub_block *sblock) ret = scrub_write_page_to_dev_replace(sblock, page_num); if (ret) btrfs_dev_replace_stats_inc( - &sblock->sctx->fs_info->dev_replace. - num_write_errors); + &fs_info->dev_replace.num_write_errors); } } @@ -2134,6 +2134,7 @@ static void scrub_missing_raid56_worker(struct btrfs_work *work) { struct scrub_block *sblock = container_of(work, struct scrub_block, work); struct scrub_ctx *sctx = sblock->sctx; + struct btrfs_fs_info *fs_info = sctx->fs_info; u64 logical; struct btrfs_device *dev; @@ -2147,14 +2148,14 @@ static void scrub_missing_raid56_worker(struct btrfs_work *work) spin_lock(&sctx->stat_lock); sctx->stat.read_errors++; spin_unlock(&sctx->stat_lock); - btrfs_err_rl_in_rcu(sctx->fs_info, + btrfs_err_rl_in_rcu(fs_info, "IO error rebuilding logical %llu for dev %s", logical, rcu_str_deref(dev->name)); } else if (sblock->header_error || sblock->checksum_error) { spin_lock(&sctx->stat_lock); sctx->stat.uncorrectable_errors++; spin_unlock(&sctx->stat_lock); - btrfs_err_rl_in_rcu(sctx->fs_info, + btrfs_err_rl_in_rcu(fs_info, "failed to rebuild valid logical %llu for dev %s", logical, rcu_str_deref(dev->name)); } else { @@ -2745,6 +2746,7 @@ static void scrub_parity_bio_endio_worker(struct btrfs_work *work) static void scrub_parity_bio_endio(struct bio *bio) { struct scrub_parity *sparity = (struct scrub_parity *)bio->bi_private; + struct btrfs_fs_info *fs_info = sparity->sctx->fs_info; if (bio->bi_error) bitmap_or(sparity->ebitmap, sparity->ebitmap, sparity->dbitmap, @@ -2754,14 +2756,14 @@ static void scrub_parity_bio_endio(struct bio *bio) btrfs_init_work(&sparity->work, btrfs_scrubparity_helper, scrub_parity_bio_endio_worker, NULL, NULL); - btrfs_queue_work(sparity->sctx->fs_info->scrub_parity_workers, - &sparity->work); + btrfs_queue_work(fs_info->scrub_parity_workers, &sparity->work); } static void scrub_parity_check_and_repair(struct scrub_parity *sparity) { struct scrub_ctx *sctx = sparity->sctx; - struct btrfs_root *dev_root = sctx->fs_info->dev_root; + struct btrfs_fs_info *fs_info = sctx->fs_info; + struct btrfs_root *dev_root = fs_info->dev_root; struct bio *bio; struct btrfs_raid_bio *rbio; struct scrub_page *spage; @@ -2774,8 +2776,8 @@ static void scrub_parity_check_and_repair(struct scrub_parity *sparity) goto out; length = sparity->logic_end - sparity->logic_start; - ret = btrfs_map_sblock(sctx->fs_info, WRITE, sparity->logic_start, - &length, &bbio, 0, 1); + ret = btrfs_map_sblock(fs_info, WRITE, sparity->logic_start, &length, + &bbio, 0, 1); if (ret || !bbio || !bbio->raid_map) goto bbio_out; @@ -2861,7 +2863,7 @@ static noinline_for_stack int scrub_raid56_parity(struct scrub_ctx *sctx, int extent_mirror_num; int stop_loop = 0; - nsectors = div_u64(map->stripe_len, root->fs_info->sectorsize); + nsectors = div_u64(map->stripe_len, fs_info->sectorsize); bitmap_len = scrub_calc_parity_bitmap_len(nsectors); sparity = kzalloc(sizeof(struct scrub_parity) + 2 * bitmap_len, GFP_NOFS); @@ -2932,7 +2934,7 @@ static noinline_for_stack int scrub_raid56_parity(struct scrub_ctx *sctx, goto next; if (key.type == BTRFS_METADATA_ITEM_KEY) - bytes = root->fs_info->nodesize; + bytes = fs_info->nodesize; else bytes = key.offset; @@ -3283,7 +3285,7 @@ static noinline_for_stack int scrub_stripe(struct scrub_ctx *sctx, goto next; if (key.type == BTRFS_METADATA_ITEM_KEY) - bytes = root->fs_info->nodesize; + bytes = fs_info->nodesize; else bytes = key.offset; @@ -3740,16 +3742,16 @@ static noinline_for_stack int scrub_supers(struct scrub_ctx *sctx, u64 bytenr; u64 gen; int ret; - struct btrfs_root *root = sctx->fs_info->dev_root; + struct btrfs_fs_info *fs_info = sctx->fs_info; - if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) + if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) return -EIO; /* Seed devices of a new filesystem has their own generation. */ - if (scrub_dev->fs_devices != root->fs_info->fs_devices) + if (scrub_dev->fs_devices != fs_info->fs_devices) gen = scrub_dev->generation; else - gen = root->fs_info->last_trans_committed; + gen = fs_info->last_trans_committed; for (i = 0; i < BTRFS_SUPER_MIRROR_MAX; i++) { bytenr = btrfs_sb_offset(i); @@ -4046,16 +4048,17 @@ int btrfs_scrub_cancel_dev(struct btrfs_fs_info *fs_info, int btrfs_scrub_progress(struct btrfs_root *root, u64 devid, struct btrfs_scrub_progress *progress) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_device *dev; struct scrub_ctx *sctx = NULL; - mutex_lock(&root->fs_info->fs_devices->device_list_mutex); - dev = btrfs_find_device(root->fs_info, devid, NULL, NULL); + mutex_lock(&fs_info->fs_devices->device_list_mutex); + dev = btrfs_find_device(fs_info, devid, NULL, NULL); if (dev) sctx = dev->scrub_device; if (sctx) memcpy(progress, &sctx->stat, sizeof(*progress)); - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); return dev ? (sctx ? 0 : -ENOTCONN) : -ENODEV; } @@ -4165,20 +4168,17 @@ static void copy_nocow_pages_worker(struct btrfs_work *work) struct scrub_copy_nocow_ctx *nocow_ctx = container_of(work, struct scrub_copy_nocow_ctx, work); struct scrub_ctx *sctx = nocow_ctx->sctx; + struct btrfs_fs_info *fs_info = sctx->fs_info; + struct btrfs_root *root = fs_info->extent_root; u64 logical = nocow_ctx->logical; u64 len = nocow_ctx->len; int mirror_num = nocow_ctx->mirror_num; u64 physical_for_dev_replace = nocow_ctx->physical_for_dev_replace; int ret; struct btrfs_trans_handle *trans = NULL; - struct btrfs_fs_info *fs_info; struct btrfs_path *path; - struct btrfs_root *root; int not_written = 0; - fs_info = sctx->fs_info; - root = fs_info->extent_root; - path = btrfs_alloc_path(); if (!path) { spin_lock(&sctx->stat_lock); diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c index e5bf88de90f9..bd365ca3a9a7 100644 --- a/fs/btrfs/send.c +++ b/fs/btrfs/send.c @@ -1282,6 +1282,7 @@ static int find_extent_clone(struct send_ctx *sctx, u64 ino_size, struct clone_root **found) { + struct btrfs_fs_info *fs_info = sctx->send_root->fs_info; int ret; int extent_type; u64 logical; @@ -1340,10 +1341,10 @@ static int find_extent_clone(struct send_ctx *sctx, } logical = disk_byte + btrfs_file_extent_offset(eb, fi); - down_read(&sctx->send_root->fs_info->commit_root_sem); - ret = extent_from_logical(sctx->send_root->fs_info, disk_byte, tmp_path, + down_read(&fs_info->commit_root_sem); + ret = extent_from_logical(fs_info, disk_byte, tmp_path, &found_key, &flags); - up_read(&sctx->send_root->fs_info->commit_root_sem); + up_read(&fs_info->commit_root_sem); btrfs_release_path(tmp_path); if (ret < 0) @@ -1398,9 +1399,9 @@ static int find_extent_clone(struct send_ctx *sctx, extent_item_pos = logical - found_key.objectid; else extent_item_pos = 0; - ret = iterate_extent_inodes(sctx->send_root->fs_info, - found_key.objectid, extent_item_pos, 1, - __iterate_backrefs, backref_ctx); + ret = iterate_extent_inodes(fs_info, found_key.objectid, + extent_item_pos, 1, __iterate_backrefs, + backref_ctx); if (ret < 0) goto out; @@ -1408,9 +1409,8 @@ static int find_extent_clone(struct send_ctx *sctx, if (!backref_ctx->found_itself) { /* found a bug in backref code? */ ret = -EIO; - btrfs_err(sctx->send_root->fs_info, "did not find backref in " - "send_root. inode=%llu, offset=%llu, " - "disk_byte=%llu found extent=%llu", + btrfs_err(fs_info, + "did not find backref in send_root. inode=%llu, offset=%llu, disk_byte=%llu found extent=%llu", ino, data_offset, disk_byte, found_key.objectid); goto out; } @@ -5923,17 +5923,17 @@ static void btrfs_root_dec_send_in_progress(struct btrfs_root* root) */ if (root->send_in_progress < 0) btrfs_err(root->fs_info, - "send_in_progres unbalanced %d root %llu", - root->send_in_progress, root->root_key.objectid); + "send_in_progres unbalanced %d root %llu", + root->send_in_progress, root->root_key.objectid); spin_unlock(&root->root_item_lock); } long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_) { int ret = 0; - struct btrfs_root *send_root; + struct btrfs_root *send_root = BTRFS_I(file_inode(mnt_file))->root; + struct btrfs_fs_info *fs_info = send_root->fs_info; struct btrfs_root *clone_root; - struct btrfs_fs_info *fs_info; struct btrfs_ioctl_send_args *arg = NULL; struct btrfs_key key; struct send_ctx *sctx = NULL; @@ -5947,9 +5947,6 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_) if (!capable(CAP_SYS_ADMIN)) return -EPERM; - send_root = BTRFS_I(file_inode(mnt_file))->root; - fs_info = send_root->fs_info; - /* * The subvolume must remain read-only during send, protect against * making it RW. This also protects against deletion. diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index aeaa514a1db3..3c2009907312 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -390,8 +390,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, bool saved_compress_force; int no_compress = 0; - cache_gen = btrfs_super_cache_generation(root->fs_info->super_copy); - if (btrfs_fs_compat_ro(root->fs_info, FREE_SPACE_TREE)) + cache_gen = btrfs_super_cache_generation(info->super_copy); + if (btrfs_fs_compat_ro(info, FREE_SPACE_TREE)) btrfs_set_opt(info->mount_opt, FREE_SPACE_TREE); else if (cache_gen) btrfs_set_opt(info->mount_opt, SPACE_CACHE); @@ -421,7 +421,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, token = match_token(p, tokens, args); switch (token) { case Opt_degraded: - btrfs_info(root->fs_info, "allowing degraded mounts"); + btrfs_info(info, "allowing degraded mounts"); btrfs_set_opt(info->mount_opt, DEGRADED); break; case Opt_subvol: @@ -440,9 +440,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, case Opt_datasum: if (btrfs_test_opt(info, NODATASUM)) { if (btrfs_test_opt(info, NODATACOW)) - btrfs_info(root->fs_info, "setting datasum, datacow enabled"); + btrfs_info(info, + "setting datasum, datacow enabled"); else - btrfs_info(root->fs_info, "setting datasum"); + btrfs_info(info, "setting datasum"); } btrfs_clear_opt(info->mount_opt, NODATACOW); btrfs_clear_opt(info->mount_opt, NODATASUM); @@ -451,10 +452,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, if (!btrfs_test_opt(info, NODATACOW)) { if (!btrfs_test_opt(info, COMPRESS) || !btrfs_test_opt(info, FORCE_COMPRESS)) { - btrfs_info(root->fs_info, + btrfs_info(info, "setting nodatacow, compression disabled"); } else { - btrfs_info(root->fs_info, "setting nodatacow"); + btrfs_info(info, "setting nodatacow"); } } btrfs_clear_opt(info->mount_opt, COMPRESS); @@ -521,8 +522,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, compress_force != saved_compress_force)) || (!btrfs_test_opt(info, COMPRESS) && no_compress == 1)) { - btrfs_info(root->fs_info, - "%s %s compression", + btrfs_info(info, "%s %s compression", (compress_force) ? "force" : "use", compress_type); } @@ -570,10 +570,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, if (info->max_inline) { info->max_inline = min_t(u64, info->max_inline, - root->fs_info->sectorsize); + info->sectorsize); } - btrfs_info(root->fs_info, "max_inline at %llu", - info->max_inline); + btrfs_info(info, "max_inline at %llu", + info->max_inline); } else { ret = -ENOMEM; goto out; @@ -586,8 +586,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, info->alloc_start = memparse(num, NULL); mutex_unlock(&info->chunk_mutex); kfree(num); - btrfs_info(root->fs_info, "allocations start at %llu", - info->alloc_start); + btrfs_info(info, "allocations start at %llu", + info->alloc_start); } else { ret = -ENOMEM; goto out; @@ -595,16 +595,15 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, break; case Opt_acl: #ifdef CONFIG_BTRFS_FS_POSIX_ACL - root->fs_info->sb->s_flags |= MS_POSIXACL; + info->sb->s_flags |= MS_POSIXACL; break; #else - btrfs_err(root->fs_info, - "support for ACL not compiled in!"); + btrfs_err(info, "support for ACL not compiled in!"); ret = -EINVAL; goto out; #endif case Opt_noacl: - root->fs_info->sb->s_flags &= ~MS_POSIXACL; + info->sb->s_flags &= ~MS_POSIXACL; break; case Opt_notreelog: btrfs_set_and_info(info, NOTREELOG, @@ -633,8 +632,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, goto out; } else if (intarg >= 0) { info->metadata_ratio = intarg; - btrfs_info(root->fs_info, "metadata ratio %d", - info->metadata_ratio); + btrfs_info(info, "metadata ratio %d", + info->metadata_ratio); } else { ret = -EINVAL; goto out; @@ -652,15 +651,14 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, case Opt_space_cache_version: if (token == Opt_space_cache || strcmp(args[0].from, "v1") == 0) { - btrfs_clear_opt(root->fs_info->mount_opt, + btrfs_clear_opt(info->mount_opt, FREE_SPACE_TREE); btrfs_set_and_info(info, SPACE_CACHE, - "enabling disk space caching"); + "enabling disk space caching"); } else if (strcmp(args[0].from, "v2") == 0) { - btrfs_clear_opt(root->fs_info->mount_opt, + btrfs_clear_opt(info->mount_opt, SPACE_CACHE); - btrfs_set_and_info(info, - FREE_SPACE_TREE, + btrfs_set_and_info(info, FREE_SPACE_TREE, "enabling free space tree"); } else { ret = -EINVAL; @@ -672,14 +670,12 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, break; case Opt_no_space_cache: if (btrfs_test_opt(info, SPACE_CACHE)) { - btrfs_clear_and_info(info, - SPACE_CACHE, - "disabling disk space caching"); + btrfs_clear_and_info(info, SPACE_CACHE, + "disabling disk space caching"); } if (btrfs_test_opt(info, FREE_SPACE_TREE)) { - btrfs_clear_and_info(info, - FREE_SPACE_TREE, - "disabling free space tree"); + btrfs_clear_and_info(info, FREE_SPACE_TREE, + "disabling free space tree"); } break; case Opt_inode_cache: @@ -712,10 +708,10 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, "disabling auto defrag"); break; case Opt_recovery: - btrfs_warn(root->fs_info, + btrfs_warn(info, "'recovery' is deprecated, use 'usebackuproot' instead"); case Opt_usebackuproot: - btrfs_info(root->fs_info, + btrfs_info(info, "trying to use backup root at mount time"); btrfs_set_opt(info->mount_opt, USEBACKUPROOT); break; @@ -724,14 +720,14 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, break; #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY case Opt_check_integrity_including_extent_data: - btrfs_info(root->fs_info, + btrfs_info(info, "enabling check integrity including extent data"); btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY_INCLUDING_EXTENT_DATA); btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY); break; case Opt_check_integrity: - btrfs_info(root->fs_info, "enabling check integrity"); + btrfs_info(info, "enabling check integrity"); btrfs_set_opt(info->mount_opt, CHECK_INTEGRITY); break; case Opt_check_integrity_print_mask: @@ -740,8 +736,9 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, goto out; } else if (intarg >= 0) { info->check_integrity_print_mask = intarg; - btrfs_info(root->fs_info, "check_integrity_print_mask 0x%x", - info->check_integrity_print_mask); + btrfs_info(info, + "check_integrity_print_mask 0x%x", + info->check_integrity_print_mask); } else { ret = -EINVAL; goto out; @@ -751,8 +748,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, case Opt_check_integrity_including_extent_data: case Opt_check_integrity: case Opt_check_integrity_print_mask: - btrfs_err(root->fs_info, - "support for check_integrity* not compiled in!"); + btrfs_err(info, + "support for check_integrity* not compiled in!"); ret = -EINVAL; goto out; #endif @@ -772,40 +769,43 @@ int btrfs_parse_options(struct btrfs_root *root, char *options, intarg = 0; ret = match_int(&args[0], &intarg); if (ret < 0) { - btrfs_err(root->fs_info, "invalid commit interval"); + btrfs_err(info, "invalid commit interval"); ret = -EINVAL; goto out; } if (intarg > 0) { if (intarg > 300) { - btrfs_warn(root->fs_info, "excessive commit interval %d", + btrfs_warn(info, + "excessive commit interval %d", intarg); } info->commit_interval = intarg; } else { - btrfs_info(root->fs_info, "using default commit interval %ds", - BTRFS_DEFAULT_COMMIT_INTERVAL); + btrfs_info(info, + "using default commit interval %ds", + BTRFS_DEFAULT_COMMIT_INTERVAL); info->commit_interval = BTRFS_DEFAULT_COMMIT_INTERVAL; } break; #ifdef CONFIG_BTRFS_DEBUG case Opt_fragment_all: - btrfs_info(root->fs_info, "fragmenting all space"); + btrfs_info(info, "fragmenting all space"); btrfs_set_opt(info->mount_opt, FRAGMENT_DATA); btrfs_set_opt(info->mount_opt, FRAGMENT_METADATA); break; case Opt_fragment_metadata: - btrfs_info(root->fs_info, "fragmenting metadata"); + btrfs_info(info, "fragmenting metadata"); btrfs_set_opt(info->mount_opt, FRAGMENT_METADATA); break; case Opt_fragment_data: - btrfs_info(root->fs_info, "fragmenting data"); + btrfs_info(info, "fragmenting data"); btrfs_set_opt(info->mount_opt, FRAGMENT_DATA); break; #endif case Opt_err: - btrfs_info(root->fs_info, "unrecognized mount option '%s'", p); + btrfs_info(info, "unrecognized mount option '%s'", + p); ret = -EINVAL; goto out; default: @@ -817,22 +817,22 @@ check: * Extra check for current option against current flag */ if (btrfs_test_opt(info, NOLOGREPLAY) && !(new_flags & MS_RDONLY)) { - btrfs_err(root->fs_info, + btrfs_err(info, "nologreplay must be used with ro mount option"); ret = -EINVAL; } out: - if (btrfs_fs_compat_ro(root->fs_info, FREE_SPACE_TREE) && + if (btrfs_fs_compat_ro(info, FREE_SPACE_TREE) && !btrfs_test_opt(info, FREE_SPACE_TREE) && !btrfs_test_opt(info, CLEAR_CACHE)) { - btrfs_err(root->fs_info, "cannot disable free space tree"); + btrfs_err(info, "cannot disable free space tree"); ret = -EINVAL; } if (!ret && btrfs_test_opt(info, SPACE_CACHE)) - btrfs_info(root->fs_info, "disk space caching is enabled"); + btrfs_info(info, "disk space caching is enabled"); if (!ret && btrfs_test_opt(info, FREE_SPACE_TREE)) - btrfs_info(root->fs_info, "using free space tree"); + btrfs_info(info, "using free space tree"); kfree(orig); return ret; } @@ -1195,7 +1195,6 @@ int btrfs_sync_fs(struct super_block *sb, int wait) static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry) { struct btrfs_fs_info *info = btrfs_sb(dentry->d_sb); - struct btrfs_root *root = info->tree_root; char *compress_type; if (btrfs_test_opt(info, DEGRADED)) @@ -1237,7 +1236,7 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry) seq_puts(seq, ",flushoncommit"); if (btrfs_test_opt(info, DISCARD)) seq_puts(seq, ",discard"); - if (!(root->fs_info->sb->s_flags & MS_POSIXACL)) + if (!(info->sb->s_flags & MS_POSIXACL)) seq_puts(seq, ",noacl"); if (btrfs_test_opt(info, SPACE_CACHE)) seq_puts(seq, ",space_cache"); @@ -1758,7 +1757,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) if (ret) goto restore; } else { - if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) { + if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) { btrfs_err(fs_info, "Remounting read-write after error is not allowed"); ret = -EINVAL; diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c index a1cbc2286dd6..ede1bea8df3a 100644 --- a/fs/btrfs/transaction.c +++ b/fs/btrfs/transaction.c @@ -314,9 +314,11 @@ static int record_root_in_trans(struct btrfs_trans_handle *trans, struct btrfs_root *root, int force) { + struct btrfs_fs_info *fs_info = root->fs_info; + if ((test_bit(BTRFS_ROOT_REF_COWS, &root->state) && root->last_trans < trans->transid) || force) { - WARN_ON(root == root->fs_info->extent_root); + WARN_ON(root == fs_info->extent_root); WARN_ON(root->commit_root != root->node); /* @@ -331,15 +333,15 @@ static int record_root_in_trans(struct btrfs_trans_handle *trans, */ smp_wmb(); - spin_lock(&root->fs_info->fs_roots_radix_lock); + spin_lock(&fs_info->fs_roots_radix_lock); if (root->last_trans == trans->transid && !force) { - spin_unlock(&root->fs_info->fs_roots_radix_lock); + spin_unlock(&fs_info->fs_roots_radix_lock); return 0; } - radix_tree_tag_set(&root->fs_info->fs_roots_radix, - (unsigned long)root->root_key.objectid, - BTRFS_ROOT_TRANS_TAG); - spin_unlock(&root->fs_info->fs_roots_radix_lock); + radix_tree_tag_set(&fs_info->fs_roots_radix, + (unsigned long)root->root_key.objectid, + BTRFS_ROOT_TRANS_TAG); + spin_unlock(&fs_info->fs_roots_radix_lock); root->last_trans = trans->transid; /* this is pretty tricky. We don't want to @@ -372,6 +374,7 @@ static int record_root_in_trans(struct btrfs_trans_handle *trans, void btrfs_add_dropped_root(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_transaction *cur_trans = trans->transaction; /* Add ourselves to the transaction dropped list */ @@ -380,16 +383,18 @@ void btrfs_add_dropped_root(struct btrfs_trans_handle *trans, spin_unlock(&cur_trans->dropped_roots_lock); /* Make sure we don't try to update the root at commit time */ - spin_lock(&root->fs_info->fs_roots_radix_lock); - radix_tree_tag_clear(&root->fs_info->fs_roots_radix, + spin_lock(&fs_info->fs_roots_radix_lock); + radix_tree_tag_clear(&fs_info->fs_roots_radix, (unsigned long)root->root_key.objectid, BTRFS_ROOT_TRANS_TAG); - spin_unlock(&root->fs_info->fs_roots_radix_lock); + spin_unlock(&fs_info->fs_roots_radix_lock); } int btrfs_record_root_in_trans(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; + if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state)) return 0; @@ -402,9 +407,9 @@ int btrfs_record_root_in_trans(struct btrfs_trans_handle *trans, !test_bit(BTRFS_ROOT_IN_TRANS_SETUP, &root->state)) return 0; - mutex_lock(&root->fs_info->reloc_mutex); + mutex_lock(&fs_info->reloc_mutex); record_root_in_trans(trans, root, 0); - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->reloc_mutex); return 0; } @@ -422,33 +427,36 @@ static inline int is_transaction_blocked(struct btrfs_transaction *trans) */ static void wait_current_trans(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_transaction *cur_trans; - spin_lock(&root->fs_info->trans_lock); - cur_trans = root->fs_info->running_transaction; + spin_lock(&fs_info->trans_lock); + cur_trans = fs_info->running_transaction; if (cur_trans && is_transaction_blocked(cur_trans)) { atomic_inc(&cur_trans->use_count); - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); - wait_event(root->fs_info->transaction_wait, + wait_event(fs_info->transaction_wait, cur_trans->state >= TRANS_STATE_UNBLOCKED || cur_trans->aborted); btrfs_put_transaction(cur_trans); } else { - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); } } static int may_wait_transaction(struct btrfs_root *root, int type) { - if (root->fs_info->log_root_recovering) + struct btrfs_fs_info *fs_info = root->fs_info; + + if (fs_info->log_root_recovering) return 0; if (type == TRANS_USERSPACE) return 1; if (type == TRANS_START && - !atomic_read(&root->fs_info->open_ioctl_trans)) + !atomic_read(&fs_info->open_ioctl_trans)) return 1; return 0; @@ -456,7 +464,9 @@ static int may_wait_transaction(struct btrfs_root *root, int type) static inline bool need_reserve_reloc_root(struct btrfs_root *root) { - if (!root->fs_info->reloc_ctl || + struct btrfs_fs_info *fs_info = root->fs_info; + + if (!fs_info->reloc_ctl || !test_bit(BTRFS_ROOT_REF_COWS, &root->state) || root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID || root->reloc_root) @@ -469,6 +479,8 @@ static struct btrfs_trans_handle * start_transaction(struct btrfs_root *root, unsigned int num_items, unsigned int type, enum btrfs_reserve_flush_enum flush) { + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_trans_handle *h; struct btrfs_transaction *cur_trans; u64 num_bytes = 0; @@ -479,7 +491,7 @@ start_transaction(struct btrfs_root *root, unsigned int num_items, /* Send isn't supposed to start transactions. */ ASSERT(current->journal_info != BTRFS_SEND_TRANS_STUB); - if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) + if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) return ERR_PTR(-EROFS); if (current->journal_info) { @@ -496,24 +508,22 @@ start_transaction(struct btrfs_root *root, unsigned int num_items, * Do the reservation before we join the transaction so we can do all * the appropriate flushing if need be. */ - if (num_items > 0 && root != root->fs_info->chunk_root) { - qgroup_reserved = num_items * root->fs_info->nodesize; + if (num_items > 0 && root != fs_info->chunk_root) { + qgroup_reserved = num_items * fs_info->nodesize; ret = btrfs_qgroup_reserve_meta(root, qgroup_reserved); if (ret) return ERR_PTR(ret); - num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, - num_items); + num_bytes = btrfs_calc_trans_metadata_size(fs_info, num_items); /* * Do the reservation for the relocation root creation */ if (need_reserve_reloc_root(root)) { - num_bytes += root->fs_info->nodesize; + num_bytes += fs_info->nodesize; reloc_reserved = true; } - ret = btrfs_block_rsv_add(root, - &root->fs_info->trans_block_rsv, + ret = btrfs_block_rsv_add(root, &fs_info->trans_block_rsv, num_bytes, flush); if (ret) goto reserve_fail; @@ -536,7 +546,7 @@ again: * transaction and commit it, so we needn't do sb_start_intwrite(). */ if (type & __TRANS_FREEZABLE) - sb_start_intwrite(root->fs_info->sb); + sb_start_intwrite(fs_info->sb); if (may_wait_transaction(root, type)) wait_current_trans(root); @@ -556,7 +566,7 @@ again: goto join_fail; } - cur_trans = root->fs_info->running_transaction; + cur_trans = fs_info->running_transaction; h->transid = cur_trans->transid; h->transaction = cur_trans; @@ -578,9 +588,9 @@ again: } if (num_bytes) { - trace_btrfs_space_reservation(root->fs_info, "transaction", + trace_btrfs_space_reservation(fs_info, "transaction", h->transid, num_bytes, 1); - h->block_rsv = &root->fs_info->trans_block_rsv; + h->block_rsv = &fs_info->trans_block_rsv; h->bytes_reserved = num_bytes; h->reloc_reserved = reloc_reserved; } @@ -594,11 +604,11 @@ got_it: join_fail: if (type & __TRANS_FREEZABLE) - sb_end_intwrite(root->fs_info->sb); + sb_end_intwrite(fs_info->sb); kmem_cache_free(btrfs_trans_handle_cachep, h); alloc_fail: if (num_bytes) - btrfs_block_rsv_release(root, &root->fs_info->trans_block_rsv, + btrfs_block_rsv_release(root, &fs_info->trans_block_rsv, num_bytes); reserve_fail: btrfs_qgroup_free_meta(root, qgroup_reserved); @@ -616,6 +626,7 @@ struct btrfs_trans_handle *btrfs_start_transaction_fallback_global_rsv( unsigned int num_items, int min_factor) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_trans_handle *trans; u64 num_bytes; int ret; @@ -628,19 +639,17 @@ struct btrfs_trans_handle *btrfs_start_transaction_fallback_global_rsv( if (IS_ERR(trans)) return trans; - num_bytes = btrfs_calc_trans_metadata_size(root->fs_info, num_items); - ret = btrfs_cond_migrate_bytes(root->fs_info, - &root->fs_info->trans_block_rsv, - num_bytes, - min_factor); + num_bytes = btrfs_calc_trans_metadata_size(fs_info, num_items); + ret = btrfs_cond_migrate_bytes(fs_info, &fs_info->trans_block_rsv, + num_bytes, min_factor); if (ret) { btrfs_end_transaction(trans, root); return ERR_PTR(ret); } - trans->block_rsv = &root->fs_info->trans_block_rsv; + trans->block_rsv = &fs_info->trans_block_rsv; trans->bytes_reserved = num_bytes; - trace_btrfs_space_reservation(root->fs_info, "transaction", + trace_btrfs_space_reservation(fs_info, "transaction", trans->transid, num_bytes, 1); return trans; @@ -720,16 +729,17 @@ static noinline void wait_for_commit(struct btrfs_root *root, int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_transaction *cur_trans = NULL, *t; int ret = 0; if (transid) { - if (transid <= root->fs_info->last_trans_committed) + if (transid <= fs_info->last_trans_committed) goto out; /* find specified transaction */ - spin_lock(&root->fs_info->trans_lock); - list_for_each_entry(t, &root->fs_info->trans_list, list) { + spin_lock(&fs_info->trans_lock); + list_for_each_entry(t, &fs_info->trans_list, list) { if (t->transid == transid) { cur_trans = t; atomic_inc(&cur_trans->use_count); @@ -741,21 +751,21 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid) break; } } - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); /* * The specified transaction doesn't exist, or we * raced with btrfs_commit_transaction */ if (!cur_trans) { - if (transid > root->fs_info->last_trans_committed) + if (transid > fs_info->last_trans_committed) ret = -EINVAL; goto out; } } else { /* find newest transaction that is committing | committed */ - spin_lock(&root->fs_info->trans_lock); - list_for_each_entry_reverse(t, &root->fs_info->trans_list, + spin_lock(&fs_info->trans_lock); + list_for_each_entry_reverse(t, &fs_info->trans_list, list) { if (t->state >= TRANS_STATE_COMMIT_START) { if (t->state == TRANS_STATE_COMPLETED) @@ -765,7 +775,7 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid) break; } } - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); if (!cur_trans) goto out; /* nothing committing|committed */ } @@ -778,18 +788,22 @@ out: void btrfs_throttle(struct btrfs_root *root) { - if (!atomic_read(&root->fs_info->open_ioctl_trans)) + struct btrfs_fs_info *fs_info = root->fs_info; + + if (!atomic_read(&fs_info->open_ioctl_trans)) wait_current_trans(root); } static int should_end_transaction(struct btrfs_trans_handle *trans, struct btrfs_root *root) { - if (root->fs_info->global_block_rsv.space_info->full && + struct btrfs_fs_info *fs_info = root->fs_info; + + if (fs_info->global_block_rsv.space_info->full && btrfs_check_space_for_delayed_refs(trans, root)) return 1; - return !!btrfs_block_rsv_check(root, &root->fs_info->global_block_rsv, 5); + return !!btrfs_block_rsv_check(root, &fs_info->global_block_rsv, 5); } int btrfs_should_end_transaction(struct btrfs_trans_handle *trans, @@ -860,7 +874,7 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans, btrfs_trans_release_chunk_metadata(trans); - if (lock && !atomic_read(&root->fs_info->open_ioctl_trans) && + if (lock && !atomic_read(&info->open_ioctl_trans) && should_end_transaction(trans, root) && ACCESS_ONCE(cur_trans->state) == TRANS_STATE_RUNNING) { spin_lock(&info->trans_lock); @@ -877,7 +891,7 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans, } if (trans->type & __TRANS_FREEZABLE) - sb_end_intwrite(root->fs_info->sb); + sb_end_intwrite(info->sb); WARN_ON(cur_trans != info->running_transaction); WARN_ON(atomic_read(&cur_trans->num_writers) < 1); @@ -899,7 +913,7 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans, btrfs_run_delayed_iputs(root); if (trans->aborted || - test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) { + test_bit(BTRFS_FS_STATE_ERROR, &info->fs_state)) { wake_up_process(info->transaction_kthread); err = -EIO; } @@ -935,7 +949,8 @@ int btrfs_write_marked_extents(struct btrfs_root *root, { int err = 0; int werr = 0; - struct address_space *mapping = root->fs_info->btree_inode->i_mapping; + struct btrfs_fs_info *fs_info = root->fs_info; + struct address_space *mapping = fs_info->btree_inode->i_mapping; struct extent_state *cached_state = NULL; u64 start = 0; u64 end; @@ -989,11 +1004,12 @@ int btrfs_wait_marked_extents(struct btrfs_root *root, { int err = 0; int werr = 0; - struct address_space *mapping = root->fs_info->btree_inode->i_mapping; + struct btrfs_fs_info *fs_info = root->fs_info; + struct address_space *mapping = fs_info->btree_inode->i_mapping; struct extent_state *cached_state = NULL; u64 start = 0; u64 end; - struct btrfs_inode *btree_ino = BTRFS_I(root->fs_info->btree_inode); + struct btrfs_inode *btree_ino = BTRFS_I(fs_info->btree_inode); bool errors = false; while (!find_first_extent_bit(dirty_pages, start, &start, &end, @@ -1098,7 +1114,8 @@ static int update_cowonly_root(struct btrfs_trans_handle *trans, int ret; u64 old_root_bytenr; u64 old_root_used; - struct btrfs_root *tree_root = root->fs_info->tree_root; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_root *tree_root = fs_info->tree_root; old_root_used = btrfs_root_used(&root->root_item); @@ -1151,13 +1168,13 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans, if (ret) return ret; - ret = btrfs_run_dev_stats(trans, root->fs_info); + ret = btrfs_run_dev_stats(trans, fs_info); if (ret) return ret; - ret = btrfs_run_dev_replace(trans, root->fs_info); + ret = btrfs_run_dev_replace(trans, fs_info); if (ret) return ret; - ret = btrfs_run_qgroups(trans, root->fs_info); + ret = btrfs_run_qgroups(trans, fs_info); if (ret) return ret; @@ -1213,10 +1230,12 @@ again: */ void btrfs_add_dead_root(struct btrfs_root *root) { - spin_lock(&root->fs_info->trans_lock); + struct btrfs_fs_info *fs_info = root->fs_info; + + spin_lock(&fs_info->trans_lock); if (list_empty(&root->root_list)) - list_add_tail(&root->root_list, &root->fs_info->dead_roots); - spin_unlock(&root->fs_info->trans_lock); + list_add_tail(&root->root_list, &fs_info->dead_roots); + spin_unlock(&fs_info->trans_lock); } /* @@ -1299,10 +1318,10 @@ int btrfs_defrag_root(struct btrfs_root *root) btrfs_btree_balance_dirty(info->tree_root); cond_resched(); - if (btrfs_fs_closing(root->fs_info) || ret != -EAGAIN) + if (btrfs_fs_closing(info) || ret != -EAGAIN) break; - if (btrfs_defrag_cancelled(root->fs_info)) { + if (btrfs_defrag_cancelled(info)) { pr_debug("BTRFS: defrag_root cancelled\n"); ret = -EAGAIN; break; @@ -1465,7 +1484,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, rsv = trans->block_rsv; trans->block_rsv = &pending->block_rsv; trans->bytes_reserved = trans->block_rsv->reserved; - trace_btrfs_space_reservation(root->fs_info, "transaction", + trace_btrfs_space_reservation(fs_info, "transaction", trans->transid, trans->bytes_reserved, 1); dentry = pending->dentry; @@ -1585,7 +1604,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans, } key.offset = (u64)-1; - pending->snap = btrfs_read_fs_root_no_name(root->fs_info, &key); + pending->snap = btrfs_read_fs_root_no_name(fs_info, &key); if (IS_ERR(pending->snap)) { ret = PTR_ERR(pending->snap); btrfs_abort_transaction(trans, ret); @@ -1695,23 +1714,24 @@ static noinline int create_pending_snapshots(struct btrfs_trans_handle *trans, static void update_super_roots(struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_root_item *root_item; struct btrfs_super_block *super; - super = root->fs_info->super_copy; + super = fs_info->super_copy; - root_item = &root->fs_info->chunk_root->root_item; + root_item = &fs_info->chunk_root->root_item; super->chunk_root = root_item->bytenr; super->chunk_root_generation = root_item->generation; super->chunk_root_level = root_item->level; - root_item = &root->fs_info->tree_root->root_item; + root_item = &fs_info->tree_root->root_item; super->root = root_item->bytenr; super->generation = root_item->generation; super->root_level = root_item->level; - if (btrfs_test_opt(root->fs_info, SPACE_CACHE)) + if (btrfs_test_opt(fs_info, SPACE_CACHE)) super->cache_generation = root_item->generation; - if (root->fs_info->update_uuid_tree_gen) + if (fs_info->update_uuid_tree_gen) super->uuid_tree_generation = root_item->generation; } @@ -1797,6 +1817,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans, struct btrfs_root *root, int wait_for_unblock) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_async_commit *ac; struct btrfs_transaction *cur_trans; @@ -1824,7 +1845,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans, * async commit thread will be the one to unlock it. */ if (ac->newtrans->type & __TRANS_FREEZABLE) - __sb_writers_release(root->fs_info->sb, SB_FREEZE_FS); + __sb_writers_release(fs_info->sb, SB_FREEZE_FS); schedule_work(&ac->work); @@ -1845,6 +1866,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans, static void cleanup_transaction(struct btrfs_trans_handle *trans, struct btrfs_root *root, int err) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_transaction *cur_trans = trans->transaction; DEFINE_WAIT(wait); @@ -1852,7 +1874,7 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans, btrfs_abort_transaction(trans, err); - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); /* * If the transaction is removed from the list, it means this @@ -1862,25 +1884,25 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans, BUG_ON(list_empty(&cur_trans->list)); list_del_init(&cur_trans->list); - if (cur_trans == root->fs_info->running_transaction) { + if (cur_trans == fs_info->running_transaction) { cur_trans->state = TRANS_STATE_COMMIT_DOING; - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); wait_event(cur_trans->writer_wait, atomic_read(&cur_trans->num_writers) == 1); - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); } - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); btrfs_cleanup_one_transaction(trans->transaction, root); - spin_lock(&root->fs_info->trans_lock); - if (cur_trans == root->fs_info->running_transaction) - root->fs_info->running_transaction = NULL; - spin_unlock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); + if (cur_trans == fs_info->running_transaction) + fs_info->running_transaction = NULL; + spin_unlock(&fs_info->trans_lock); if (trans->type & __TRANS_FREEZABLE) - sb_end_intwrite(root->fs_info->sb); + sb_end_intwrite(fs_info->sb); btrfs_put_transaction(cur_trans); btrfs_put_transaction(cur_trans); @@ -1888,7 +1910,7 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans, if (current->journal_info == trans) current->journal_info = NULL; - btrfs_scrub_cancel(root->fs_info); + btrfs_scrub_cancel(fs_info); kmem_cache_free(btrfs_trans_handle_cachep, trans); } @@ -1916,9 +1938,10 @@ btrfs_wait_pending_ordered(struct btrfs_transaction *cur_trans) int btrfs_commit_transaction(struct btrfs_trans_handle *trans, struct btrfs_root *root) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_transaction *cur_trans = trans->transaction; struct btrfs_transaction *prev_trans = NULL; - struct btrfs_inode *btree_ino = BTRFS_I(root->fs_info->btree_inode); + struct btrfs_inode *btree_ino = BTRFS_I(fs_info->btree_inode); int ret; /* Stop the commit early if ->aborted is set */ @@ -1974,11 +1997,11 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, * hurt to have more than one go through, but there's no * real advantage to it either. */ - mutex_lock(&root->fs_info->ro_block_group_mutex); + mutex_lock(&fs_info->ro_block_group_mutex); if (!test_and_set_bit(BTRFS_TRANS_DIRTY_BG_RUN, &cur_trans->flags)) run_it = 1; - mutex_unlock(&root->fs_info->ro_block_group_mutex); + mutex_unlock(&fs_info->ro_block_group_mutex); if (run_it) ret = btrfs_start_dirty_block_groups(trans, root); @@ -1988,9 +2011,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, return ret; } - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); if (cur_trans->state >= TRANS_STATE_COMMIT_START) { - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); atomic_inc(&cur_trans->use_count); ret = btrfs_end_transaction(trans, root); @@ -2005,14 +2028,14 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, } cur_trans->state = TRANS_STATE_COMMIT_START; - wake_up(&root->fs_info->transaction_blocked_wait); + wake_up(&fs_info->transaction_blocked_wait); - if (cur_trans->list.prev != &root->fs_info->trans_list) { + if (cur_trans->list.prev != &fs_info->trans_list) { prev_trans = list_entry(cur_trans->list.prev, struct btrfs_transaction, list); if (prev_trans->state != TRANS_STATE_COMPLETED) { atomic_inc(&prev_trans->use_count); - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); wait_for_commit(root, prev_trans); ret = prev_trans->aborted; @@ -2021,15 +2044,15 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, if (ret) goto cleanup_transaction; } else { - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); } } else { - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); } extwriter_counter_dec(cur_trans, trans->type); - ret = btrfs_start_delalloc_flush(root->fs_info); + ret = btrfs_start_delalloc_flush(fs_info); if (ret) goto cleanup_transaction; @@ -2045,7 +2068,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, if (ret) goto cleanup_transaction; - btrfs_wait_delalloc_flush(root->fs_info); + btrfs_wait_delalloc_flush(fs_info); btrfs_wait_pending_ordered(cur_trans); @@ -2055,9 +2078,9 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, * commit the transaction. We could have started a join before setting * COMMIT_DOING so make sure to wait for num_writers to == 1 again. */ - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); cur_trans->state = TRANS_STATE_COMMIT_DOING; - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); wait_event(cur_trans->writer_wait, atomic_read(&cur_trans->num_writers) == 1); @@ -2071,16 +2094,16 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, * the balancing code from coming in and moving * extents around in the middle of the commit */ - mutex_lock(&root->fs_info->reloc_mutex); + mutex_lock(&fs_info->reloc_mutex); /* * We needn't worry about the delayed items because we will * deal with them in create_pending_snapshot(), which is the * core function of the snapshot creation. */ - ret = create_pending_snapshots(trans, root->fs_info); + ret = create_pending_snapshots(trans, fs_info); if (ret) { - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->reloc_mutex); goto scrub_continue; } @@ -2096,20 +2119,20 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, */ ret = btrfs_run_delayed_items(trans, root); if (ret) { - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->reloc_mutex); goto scrub_continue; } ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1); if (ret) { - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->reloc_mutex); goto scrub_continue; } /* Reocrd old roots for later qgroup accounting */ - ret = btrfs_qgroup_prepare_account_extents(trans, root->fs_info); + ret = btrfs_qgroup_prepare_account_extents(trans, fs_info); if (ret) { - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->reloc_mutex); goto scrub_continue; } @@ -2134,12 +2157,12 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, * from now until after the super is written, we avoid races * with the tree-log code. */ - mutex_lock(&root->fs_info->tree_log_mutex); + mutex_lock(&fs_info->tree_log_mutex); - ret = commit_fs_roots(trans, root->fs_info); + ret = commit_fs_roots(trans, fs_info); if (ret) { - mutex_unlock(&root->fs_info->tree_log_mutex); - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->tree_log_mutex); + mutex_unlock(&fs_info->reloc_mutex); goto scrub_continue; } @@ -2147,28 +2170,28 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, * Since the transaction is done, we can apply the pending changes * before the next transaction. */ - btrfs_apply_pending_changes(root->fs_info); + btrfs_apply_pending_changes(fs_info); /* commit_fs_roots gets rid of all the tree log roots, it is now * safe to free the root of tree log roots */ - btrfs_free_log_root_tree(trans, root->fs_info); + btrfs_free_log_root_tree(trans, fs_info); /* * Since fs roots are all committed, we can get a quite accurate * new_roots. So let's do quota accounting. */ - ret = btrfs_qgroup_account_extents(trans, root->fs_info); + ret = btrfs_qgroup_account_extents(trans, fs_info); if (ret < 0) { - mutex_unlock(&root->fs_info->tree_log_mutex); - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->tree_log_mutex); + mutex_unlock(&fs_info->reloc_mutex); goto scrub_continue; } ret = commit_cowonly_roots(trans, root); if (ret) { - mutex_unlock(&root->fs_info->tree_log_mutex); - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->tree_log_mutex); + mutex_unlock(&fs_info->reloc_mutex); goto scrub_continue; } @@ -2178,38 +2201,38 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, */ if (unlikely(ACCESS_ONCE(cur_trans->aborted))) { ret = cur_trans->aborted; - mutex_unlock(&root->fs_info->tree_log_mutex); - mutex_unlock(&root->fs_info->reloc_mutex); + mutex_unlock(&fs_info->tree_log_mutex); + mutex_unlock(&fs_info->reloc_mutex); goto scrub_continue; } btrfs_prepare_extent_commit(trans, root); - cur_trans = root->fs_info->running_transaction; + cur_trans = fs_info->running_transaction; - btrfs_set_root_node(&root->fs_info->tree_root->root_item, - root->fs_info->tree_root->node); - list_add_tail(&root->fs_info->tree_root->dirty_list, + btrfs_set_root_node(&fs_info->tree_root->root_item, + fs_info->tree_root->node); + list_add_tail(&fs_info->tree_root->dirty_list, &cur_trans->switch_commits); - btrfs_set_root_node(&root->fs_info->chunk_root->root_item, - root->fs_info->chunk_root->node); - list_add_tail(&root->fs_info->chunk_root->dirty_list, + btrfs_set_root_node(&fs_info->chunk_root->root_item, + fs_info->chunk_root->node); + list_add_tail(&fs_info->chunk_root->dirty_list, &cur_trans->switch_commits); - switch_commit_roots(cur_trans, root->fs_info); + switch_commit_roots(cur_trans, fs_info); assert_qgroups_uptodate(trans); ASSERT(list_empty(&cur_trans->dirty_bgs)); ASSERT(list_empty(&cur_trans->io_bgs)); update_super_roots(root); - btrfs_set_super_log_root(root->fs_info->super_copy, 0); - btrfs_set_super_log_root_level(root->fs_info->super_copy, 0); - memcpy(root->fs_info->super_for_commit, root->fs_info->super_copy, - sizeof(*root->fs_info->super_copy)); + btrfs_set_super_log_root(fs_info->super_copy, 0); + btrfs_set_super_log_root_level(fs_info->super_copy, 0); + memcpy(fs_info->super_for_commit, fs_info->super_copy, + sizeof(*fs_info->super_copy)); - btrfs_update_commit_device_size(root->fs_info); + btrfs_update_commit_device_size(fs_info); btrfs_update_commit_device_bytes_used(root, cur_trans); clear_bit(BTRFS_INODE_BTREE_LOG1_ERR, &btree_ino->runtime_flags); @@ -2217,25 +2240,25 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, btrfs_trans_release_chunk_metadata(trans); - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); cur_trans->state = TRANS_STATE_UNBLOCKED; - root->fs_info->running_transaction = NULL; - spin_unlock(&root->fs_info->trans_lock); - mutex_unlock(&root->fs_info->reloc_mutex); + fs_info->running_transaction = NULL; + spin_unlock(&fs_info->trans_lock); + mutex_unlock(&fs_info->reloc_mutex); - wake_up(&root->fs_info->transaction_wait); + wake_up(&fs_info->transaction_wait); ret = btrfs_write_and_wait_transaction(trans, root); if (ret) { - btrfs_handle_fs_error(root->fs_info, ret, - "Error while writing out transaction"); - mutex_unlock(&root->fs_info->tree_log_mutex); + btrfs_handle_fs_error(fs_info, ret, + "Error while writing out transaction"); + mutex_unlock(&fs_info->tree_log_mutex); goto scrub_continue; } ret = write_ctree_super(trans, root, 0); if (ret) { - mutex_unlock(&root->fs_info->tree_log_mutex); + mutex_unlock(&fs_info->tree_log_mutex); goto scrub_continue; } @@ -2243,14 +2266,14 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, * the super is written, we can safely allow the tree-loggers * to go about their business */ - mutex_unlock(&root->fs_info->tree_log_mutex); + mutex_unlock(&fs_info->tree_log_mutex); btrfs_finish_extent_commit(trans, root); if (test_bit(BTRFS_TRANS_HAVE_FREE_BGS, &cur_trans->flags)) - btrfs_clear_space_info_full(root->fs_info); + btrfs_clear_space_info_full(fs_info); - root->fs_info->last_trans_committed = cur_trans->transid; + fs_info->last_trans_committed = cur_trans->transid; /* * We needn't acquire the lock here because there is no other task * which can change it. @@ -2258,15 +2281,15 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, cur_trans->state = TRANS_STATE_COMPLETED; wake_up(&cur_trans->commit_wait); - spin_lock(&root->fs_info->trans_lock); + spin_lock(&fs_info->trans_lock); list_del_init(&cur_trans->list); - spin_unlock(&root->fs_info->trans_lock); + spin_unlock(&fs_info->trans_lock); btrfs_put_transaction(cur_trans); btrfs_put_transaction(cur_trans); if (trans->type & __TRANS_FREEZABLE) - sb_end_intwrite(root->fs_info->sb); + sb_end_intwrite(fs_info->sb); trace_btrfs_transaction_commit(root); @@ -2277,8 +2300,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans, kmem_cache_free(btrfs_trans_handle_cachep, trans); - if (current != root->fs_info->transaction_kthread && - current != root->fs_info->cleaner_kthread) + if (current != fs_info->transaction_kthread && + current != fs_info->cleaner_kthread) btrfs_run_delayed_iputs(root); return ret; @@ -2289,7 +2312,7 @@ cleanup_transaction: btrfs_trans_release_metadata(trans, root); btrfs_trans_release_chunk_metadata(trans); trans->block_rsv = NULL; - btrfs_warn(root->fs_info, "Skipping commit of aborted transaction."); + btrfs_warn(fs_info, "Skipping commit of aborted transaction."); if (current->journal_info == trans) current->journal_info = NULL; cleanup_transaction(trans, root, ret); diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 8567523ace97..3630d2dfefcb 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -141,12 +141,13 @@ static int start_log_trans(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_log_ctx *ctx) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret = 0; mutex_lock(&root->log_mutex); if (root->log_root) { - if (btrfs_need_log_full_commit(root->fs_info, trans)) { + if (btrfs_need_log_full_commit(fs_info, trans)) { ret = -EAGAIN; goto out; } @@ -158,10 +159,10 @@ static int start_log_trans(struct btrfs_trans_handle *trans, set_bit(BTRFS_ROOT_MULTI_LOG_TASKS, &root->state); } } else { - mutex_lock(&root->fs_info->tree_log_mutex); - if (!root->fs_info->log_root_tree) - ret = btrfs_init_log_root_tree(trans, root->fs_info); - mutex_unlock(&root->fs_info->tree_log_mutex); + mutex_lock(&fs_info->tree_log_mutex); + if (!fs_info->log_root_tree) + ret = btrfs_init_log_root_tree(trans, fs_info); + mutex_unlock(&fs_info->tree_log_mutex); if (ret) goto out; @@ -291,20 +292,21 @@ static int process_one_buffer(struct btrfs_root *log, struct extent_buffer *eb, struct walk_control *wc, u64 gen) { + struct btrfs_fs_info *fs_info = log->fs_info; int ret = 0; /* * If this fs is mixed then we need to be able to process the leaves to * pin down any logged extents, so we have to read the block. */ - if (btrfs_fs_incompat(log->fs_info, MIXED_GROUPS)) { + if (btrfs_fs_incompat(fs_info, MIXED_GROUPS)) { ret = btrfs_read_buffer(eb, gen); if (ret) return ret; } if (wc->pin) - ret = btrfs_pin_extent_for_log_replay(log->fs_info->extent_root, + ret = btrfs_pin_extent_for_log_replay(fs_info->extent_root, eb->start, eb->len); if (!ret && btrfs_buffer_uptodate(eb, gen, 0)) { @@ -581,6 +583,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans, struct extent_buffer *eb, int slot, struct btrfs_key *key) { + struct btrfs_fs_info *fs_info = root->fs_info; int found_type; u64 extent_end; u64 start = key->offset; @@ -608,7 +611,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans, size = btrfs_file_extent_inline_len(eb, slot, item); nbytes = btrfs_file_extent_ram_bytes(eb, item); extent_end = ALIGN(start + size, - root->fs_info->sectorsize); + fs_info->sectorsize); } else { ret = 0; goto out; @@ -781,14 +784,12 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans, struct btrfs_ordered_sum, list); if (!ret) - ret = btrfs_del_csums(trans, - root->fs_info, + ret = btrfs_del_csums(trans, fs_info, sums->bytenr, sums->len); if (!ret) ret = btrfs_csum_file_blocks(trans, - root->fs_info->csum_root, - sums); + fs_info->csum_root, sums); list_del(&sums->list); kfree(sums); } @@ -2392,6 +2393,7 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans, struct btrfs_path *path, int *level, struct walk_control *wc) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 root_owner; u64 bytenr; u64 ptr_gen; @@ -2417,7 +2419,7 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans, bytenr = btrfs_node_blockptr(cur, path->slots[*level]); ptr_gen = btrfs_node_ptr_generation(cur, path->slots[*level]); - blocksize = root->fs_info->nodesize; + blocksize = fs_info->nodesize; parent = path->nodes[*level]; root_owner = btrfs_header_owner(parent); @@ -2444,8 +2446,7 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans, if (trans) { btrfs_tree_lock(next); btrfs_set_lock_blocking(next); - clean_tree_block(trans, root->fs_info, - next); + clean_tree_block(trans, fs_info, next); btrfs_wait_tree_block_writeback(next); btrfs_tree_unlock(next); } @@ -2490,6 +2491,7 @@ static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans, struct btrfs_path *path, int *level, struct walk_control *wc) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 root_owner; int i; int slot; @@ -2523,8 +2525,7 @@ static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans, if (trans) { btrfs_tree_lock(next); btrfs_set_lock_blocking(next); - clean_tree_block(trans, root->fs_info, - next); + clean_tree_block(trans, fs_info, next); btrfs_wait_tree_block_writeback(next); btrfs_tree_unlock(next); } @@ -2626,14 +2627,15 @@ out: static int update_log_root(struct btrfs_trans_handle *trans, struct btrfs_root *log) { + struct btrfs_fs_info *fs_info = log->fs_info; int ret; if (log->log_transid == 1) { /* insert root item on the first sync */ - ret = btrfs_insert_root(trans, log->fs_info->log_root_tree, + ret = btrfs_insert_root(trans, fs_info->log_root_tree, &log->root_key, &log->root_item); } else { - ret = btrfs_update_root(trans, log->fs_info->log_root_tree, + ret = btrfs_update_root(trans, fs_info->log_root_tree, &log->root_key, &log->root_item); } return ret; @@ -2729,8 +2731,9 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, int index2; int mark; int ret; + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_root *log = root->log_root; - struct btrfs_root *log_root_tree = root->fs_info->log_root_tree; + struct btrfs_root *log_root_tree = fs_info->log_root_tree; int log_transid = 0; struct btrfs_log_ctx root_log_ctx; struct blk_plug plug; @@ -2758,7 +2761,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, while (1) { int batch = atomic_read(&root->log_batch); /* when we're on an ssd, just kick the log commit out */ - if (!btrfs_test_opt(root->fs_info, SSD) && + if (!btrfs_test_opt(fs_info, SSD) && test_bit(BTRFS_ROOT_MULTI_LOG_TASKS, &root->state)) { mutex_unlock(&root->log_mutex); schedule_timeout_uninterruptible(1); @@ -2770,7 +2773,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, } /* bail out if we need to do a full commit */ - if (btrfs_need_log_full_commit(root->fs_info, trans)) { + if (btrfs_need_log_full_commit(fs_info, trans)) { ret = -EAGAIN; btrfs_free_logged_extents(log, log_transid); mutex_unlock(&root->log_mutex); @@ -2791,7 +2794,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, blk_finish_plug(&plug); btrfs_abort_transaction(trans, ret); btrfs_free_logged_extents(log, log_transid); - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); mutex_unlock(&root->log_mutex); goto out; } @@ -2836,7 +2839,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, list_del_init(&root_log_ctx.list); blk_finish_plug(&plug); - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); if (ret != -ENOSPC) { btrfs_abort_transaction(trans, ret); @@ -2884,7 +2887,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, * now that we've moved on to the tree of log tree roots, * check the full commit flag again */ - if (btrfs_need_log_full_commit(root->fs_info, trans)) { + if (btrfs_need_log_full_commit(fs_info, trans)) { blk_finish_plug(&plug); btrfs_wait_marked_extents(log, &log->dirty_log_pages, mark); btrfs_free_logged_extents(log, log_transid); @@ -2898,7 +2901,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, EXTENT_DIRTY | EXTENT_NEW); blk_finish_plug(&plug); if (ret) { - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); btrfs_abort_transaction(trans, ret); btrfs_free_logged_extents(log, log_transid); mutex_unlock(&log_root_tree->log_mutex); @@ -2910,17 +2913,17 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, &log_root_tree->dirty_log_pages, EXTENT_NEW | EXTENT_DIRTY); if (ret) { - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); btrfs_free_logged_extents(log, log_transid); mutex_unlock(&log_root_tree->log_mutex); goto out_wake_log_root; } btrfs_wait_logged_extents(trans, log, log_transid); - btrfs_set_super_log_root(root->fs_info->super_for_commit, - log_root_tree->node->start); - btrfs_set_super_log_root_level(root->fs_info->super_for_commit, - btrfs_header_level(log_root_tree->node)); + btrfs_set_super_log_root(fs_info->super_for_commit, + log_root_tree->node->start); + btrfs_set_super_log_root_level(fs_info->super_for_commit, + btrfs_header_level(log_root_tree->node)); log_root_tree->log_transid++; mutex_unlock(&log_root_tree->log_mutex); @@ -2932,9 +2935,9 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans, * the running transaction open, so a full commit can't hop * in and cause problems either. */ - ret = write_ctree_super(trans, root->fs_info->tree_root, 1); + ret = write_ctree_super(trans, fs_info->tree_root, 1); if (ret) { - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); btrfs_abort_transaction(trans, ret); goto out_wake_log_root; } @@ -3174,6 +3177,7 @@ int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans, const char *name, int name_len, struct inode *inode, u64 dirid) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_root *log; u64 index; int ret; @@ -3191,7 +3195,7 @@ int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans, dirid, &index); mutex_unlock(&BTRFS_I(inode)->log_mutex); if (ret == -ENOSPC) { - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); ret = 0; } else if (ret < 0 && ret != -ENOENT) btrfs_abort_transaction(trans, ret); @@ -3598,6 +3602,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans, int start_slot, int nr, int inode_only, u64 logged_isize) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); unsigned long src_offset; unsigned long dst_offset; struct btrfs_root *log = BTRFS_I(inode)->root->log_root; @@ -3708,7 +3713,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans, } ret = btrfs_lookup_csums_range( - log->fs_info->csum_root, + fs_info->csum_root, ds + cs, ds + cs + cl - 1, &ordered_sums, 0); if (ret) { @@ -3781,7 +3786,7 @@ static noinline int copy_items(struct btrfs_trans_handle *trans, src_path->slots[0], extent); *last_extent = ALIGN(key.offset + len, - log->fs_info->sectorsize); + fs_info->sectorsize); } else { len = btrfs_file_extent_num_bytes(src, extent); *last_extent = key.offset + len; @@ -3845,7 +3850,7 @@ fill_holes: BTRFS_FILE_EXTENT_INLINE) { len = btrfs_file_extent_inline_len(src, i, extent); extent_end = ALIGN(key.offset + len, - log->fs_info->sectorsize); + fs_info->sectorsize); } else { len = btrfs_file_extent_num_bytes(src, extent); extent_end = key.offset + len; @@ -3895,6 +3900,7 @@ static int wait_ordered_extents(struct btrfs_trans_handle *trans, const struct list_head *logged_list, bool *ordered_io_error) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_ordered_extent *ordered; struct btrfs_root *log = root->log_root; u64 mod_start = em->mod_start; @@ -4011,7 +4017,7 @@ static int wait_ordered_extents(struct btrfs_trans_handle *trans, } /* block start is already adjusted for the file extent offset. */ - ret = btrfs_lookup_csums_range(log->fs_info->csum_root, + ret = btrfs_lookup_csums_range(fs_info->csum_root, em->block_start + csum_offset, em->block_start + csum_offset + csum_len - 1, &ordered_sums, 0); @@ -4354,6 +4360,7 @@ static int btrfs_log_trailing_hole(struct btrfs_trans_handle *trans, struct inode *inode, struct btrfs_path *path) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; struct btrfs_key key; u64 hole_start; @@ -4363,7 +4370,7 @@ static int btrfs_log_trailing_hole(struct btrfs_trans_handle *trans, const u64 ino = btrfs_ino(inode); const u64 i_size = i_size_read(inode); - if (!btrfs_fs_incompat(root->fs_info, NO_HOLES)) + if (!btrfs_fs_incompat(fs_info, NO_HOLES)) return 0; key.objectid = ino; @@ -4420,7 +4427,7 @@ static int btrfs_log_trailing_hole(struct btrfs_trans_handle *trans, if (hole_size == 0) return 0; - hole_size = ALIGN(hole_size, root->fs_info->sectorsize); + hole_size = ALIGN(hole_size, fs_info->sectorsize); ret = btrfs_insert_file_extent(trans, log, ino, hole_start, 0, 0, hole_size, 0, hole_size, 0, 0, 0); return ret; @@ -4568,6 +4575,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans, const loff_t end, struct btrfs_log_ctx *ctx) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_path *path; struct btrfs_path *dst_path; struct btrfs_key min_key; @@ -4620,7 +4628,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans, * fixup (create temporary BTRFS_TREE_LOG_FIXUP_OBJECTID items). */ if (S_ISDIR(inode->i_mode) || - BTRFS_I(inode)->generation > root->fs_info->last_trans_committed) + BTRFS_I(inode)->generation > fs_info->last_trans_committed) ret = btrfs_commit_inode_delayed_items(trans, inode); else ret = btrfs_commit_inode_delayed_inode(inode); @@ -4728,7 +4736,7 @@ again: goto out_unlock; } else if (ret > 0) { err = 1; - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); goto out_unlock; } } @@ -5057,6 +5065,7 @@ static int log_new_dir_dentries(struct btrfs_trans_handle *trans, struct inode *start_inode, struct btrfs_log_ctx *ctx) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_root *log = root->log_root; struct btrfs_path *path; LIST_HEAD(dir_list); @@ -5124,8 +5133,7 @@ process_leaf: if (di_key.type == BTRFS_ROOT_ITEM_KEY) continue; - di_inode = btrfs_iget(root->fs_info->sb, &di_key, - root, NULL); + di_inode = btrfs_iget(fs_info->sb, &di_key, root, NULL); if (IS_ERR(di_inode)) { ret = PTR_ERR(di_inode); goto next_dir_inode; @@ -5187,6 +5195,7 @@ static int btrfs_log_all_parents(struct btrfs_trans_handle *trans, struct inode *inode, struct btrfs_log_ctx *ctx) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); int ret; struct btrfs_path *path; struct btrfs_key key; @@ -5251,7 +5260,7 @@ static int btrfs_log_all_parents(struct btrfs_trans_handle *trans, cur_offset = item_size; } - dir_inode = btrfs_iget(root->fs_info->sb, &inode_key, + dir_inode = btrfs_iget(fs_info->sb, &inode_key, root, NULL); /* If parent inode was deleted, skip it. */ if (IS_ERR(dir_inode)) @@ -5293,17 +5302,18 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans, int exists_only, struct btrfs_log_ctx *ctx) { + struct btrfs_fs_info *fs_info = root->fs_info; int inode_only = exists_only ? LOG_INODE_EXISTS : LOG_INODE_ALL; struct super_block *sb; struct dentry *old_parent = NULL; int ret = 0; - u64 last_committed = root->fs_info->last_trans_committed; + u64 last_committed = fs_info->last_trans_committed; bool log_dentries = false; struct inode *orig_inode = inode; sb = inode->i_sb; - if (btrfs_test_opt(root->fs_info, NOTREELOG)) { + if (btrfs_test_opt(fs_info, NOTREELOG)) { ret = 1; goto end_no_trans; } @@ -5312,8 +5322,8 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans, * The prev transaction commit doesn't complete, we need do * full commit by ourselves. */ - if (root->fs_info->last_trans_log_full_commit > - root->fs_info->last_trans_committed) { + if (fs_info->last_trans_log_full_commit > + fs_info->last_trans_committed) { ret = 1; goto end_no_trans; } @@ -5434,7 +5444,7 @@ static int btrfs_log_inode_parent(struct btrfs_trans_handle *trans, end_trans: dput(old_parent); if (ret < 0) { - btrfs_set_log_full_commit(root->fs_info, trans); + btrfs_set_log_full_commit(fs_info, trans); ret = 1; } @@ -5705,6 +5715,7 @@ int btrfs_log_new_name(struct btrfs_trans_handle *trans, struct inode *inode, struct inode *old_dir, struct dentry *parent) { + struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb); struct btrfs_root * root = BTRFS_I(inode)->root; /* @@ -5719,9 +5730,9 @@ int btrfs_log_new_name(struct btrfs_trans_handle *trans, * from hasn't been logged, we don't need to log it */ if (BTRFS_I(inode)->logged_trans <= - root->fs_info->last_trans_committed && + fs_info->last_trans_committed && (!old_dir || BTRFS_I(old_dir)->logged_trans <= - root->fs_info->last_trans_committed)) + fs_info->last_trans_committed)) return 0; return btrfs_log_inode_parent(trans, root, inode, parent, 0, diff --git a/fs/btrfs/uuid-tree.c b/fs/btrfs/uuid-tree.c index 27cfd7c999f5..52aa260de784 100644 --- a/fs/btrfs/uuid-tree.c +++ b/fs/btrfs/uuid-tree.c @@ -186,7 +186,7 @@ int btrfs_uuid_tree_rem(struct btrfs_trans_handle *trans, ret = btrfs_search_slot(trans, uuid_root, &key, path, -1, 1); if (ret < 0) { - btrfs_warn(uuid_root->fs_info, "error %d while searching for uuid item!", + btrfs_warn(fs_info, "error %d while searching for uuid item!", ret); goto out; } @@ -200,7 +200,7 @@ int btrfs_uuid_tree_rem(struct btrfs_trans_handle *trans, offset = btrfs_item_ptr_offset(eb, slot); item_size = btrfs_item_size_nr(eb, slot); if (!IS_ALIGNED(item_size, sizeof(u64))) { - btrfs_warn(uuid_root->fs_info, "uuid item with illegal size %lu!", + btrfs_warn(fs_info, "uuid item with illegal size %lu!", (unsigned long)item_size); ret = -ENOENT; goto out; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index e90246d507e4..c9cd9412f8df 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -344,9 +344,9 @@ static void requeue_list(struct btrfs_pending_bios *pending_bios, */ static noinline void run_scheduled_bios(struct btrfs_device *device) { + struct btrfs_fs_info *fs_info = device->fs_info; struct bio *pending; struct backing_dev_info *bdi; - struct btrfs_fs_info *fs_info; struct btrfs_pending_bios *pending_bios; struct bio *tail; struct bio *cur; @@ -368,7 +368,6 @@ static noinline void run_scheduled_bios(struct btrfs_device *device) blk_start_plug(&plug); bdi = blk_get_backing_dev_info(device->bdev); - fs_info = device->fs_info; limit = btrfs_async_submit_limit(fs_info); limit = limit * 2 / 3; @@ -1281,7 +1280,8 @@ int find_free_dev_extent_start(struct btrfs_transaction *transaction, struct btrfs_device *device, u64 num_bytes, u64 search_start, u64 *start, u64 *len) { - struct btrfs_root *root = device->fs_info->dev_root; + struct btrfs_fs_info *fs_info = device->fs_info; + struct btrfs_root *root = fs_info->dev_root; struct btrfs_key key; struct btrfs_dev_extent *dev_extent; struct btrfs_path *path; @@ -1300,7 +1300,7 @@ int find_free_dev_extent_start(struct btrfs_transaction *transaction, * used by the boot loader (grub for example), so we make sure to start * at an offset of at least 1MB. */ - min_search_start = max(root->fs_info->alloc_start, 1024ull * 1024); + min_search_start = max(fs_info->alloc_start, 1024ull * 1024); search_start = max(search_start, min_search_start); path = btrfs_alloc_path(); @@ -1451,7 +1451,8 @@ static int btrfs_free_dev_extent(struct btrfs_trans_handle *trans, struct btrfs_device *device, u64 start, u64 *dev_extent_len) { - struct btrfs_root *root = device->fs_info->dev_root; + struct btrfs_fs_info *fs_info = device->fs_info; + struct btrfs_root *root = fs_info->dev_root; int ret; struct btrfs_path *path; struct btrfs_key key; @@ -1487,7 +1488,7 @@ again: extent = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_dev_extent); } else { - btrfs_handle_fs_error(root->fs_info, ret, "Slot search failed"); + btrfs_handle_fs_error(fs_info, ret, "Slot search failed"); goto out; } @@ -1495,8 +1496,8 @@ again: ret = btrfs_del_item(trans, root, path); if (ret) { - btrfs_handle_fs_error(root->fs_info, ret, - "Failed to remove dev extent item"); + btrfs_handle_fs_error(fs_info, ret, + "Failed to remove dev extent item"); } else { set_bit(BTRFS_TRANS_HAVE_FREE_BGS, &trans->transaction->flags); } @@ -1539,7 +1540,8 @@ static int btrfs_alloc_dev_extent(struct btrfs_trans_handle *trans, btrfs_set_dev_extent_chunk_offset(leaf, extent, chunk_offset); write_extent_buffer(leaf, root->fs_info->chunk_tree_uuid, - btrfs_dev_extent_chunk_tree_uuid(extent), BTRFS_UUID_SIZE); + btrfs_dev_extent_chunk_tree_uuid(extent), + BTRFS_UUID_SIZE); btrfs_set_dev_extent_length(leaf, extent, num_bytes); btrfs_mark_buffer_dirty(leaf); @@ -1655,7 +1657,7 @@ static int btrfs_add_device(struct btrfs_trans_handle *trans, ptr = btrfs_device_uuid(dev_item); write_extent_buffer(leaf, device->uuid, ptr, BTRFS_UUID_SIZE); ptr = btrfs_device_fsid(dev_item); - write_extent_buffer(leaf, root->fs_info->fsid, ptr, BTRFS_UUID_SIZE); + write_extent_buffer(leaf, fs_info->fsid, ptr, BTRFS_UUID_SIZE); btrfs_mark_buffer_dirty(leaf); ret = 0; @@ -1796,6 +1798,7 @@ void btrfs_assign_next_active_device(struct btrfs_fs_info *fs_info, int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_device *device; struct btrfs_fs_devices *cur_devices; u64 num_devices; @@ -1805,15 +1808,15 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid) mutex_lock(&uuid_mutex); - num_devices = root->fs_info->fs_devices->num_devices; - btrfs_dev_replace_lock(&root->fs_info->dev_replace, 0); - if (btrfs_dev_replace_is_ongoing(&root->fs_info->dev_replace)) { + num_devices = fs_info->fs_devices->num_devices; + btrfs_dev_replace_lock(&fs_info->dev_replace, 0); + if (btrfs_dev_replace_is_ongoing(&fs_info->dev_replace)) { WARN_ON(num_devices < 1); num_devices--; } - btrfs_dev_replace_unlock(&root->fs_info->dev_replace, 0); + btrfs_dev_replace_unlock(&fs_info->dev_replace, 0); - ret = btrfs_check_raid_min_devices(root->fs_info, num_devices - 1); + ret = btrfs_check_raid_min_devices(fs_info, num_devices - 1); if (ret) goto out; @@ -1827,16 +1830,16 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid) goto out; } - if (device->writeable && root->fs_info->fs_devices->rw_devices == 1) { + if (device->writeable && fs_info->fs_devices->rw_devices == 1) { ret = BTRFS_ERROR_DEV_ONLY_WRITABLE; goto out; } if (device->writeable) { - lock_chunks(root->fs_info); + lock_chunks(fs_info); list_del_init(&device->dev_alloc_list); device->fs_devices->rw_devices--; - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); dev_name = kstrdup(device->name->str, GFP_KERNEL); if (!dev_name) { ret = -ENOMEM; @@ -1856,12 +1859,12 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid) * counter although write_all_supers() is not locked out. This * could give a filesystem state which requires a degraded mount. */ - ret = btrfs_rm_dev_item(root->fs_info, device); + ret = btrfs_rm_dev_item(fs_info, device); if (ret) goto error_undo; device->in_fs_metadata = 0; - btrfs_scrub_cancel_dev(root->fs_info, device); + btrfs_scrub_cancel_dev(fs_info, device); /* * the device list mutex makes sure that we don't change @@ -1874,7 +1877,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid) */ cur_devices = device->fs_devices; - mutex_lock(&root->fs_info->fs_devices->device_list_mutex); + mutex_lock(&fs_info->fs_devices->device_list_mutex); list_del_rcu(&device->dev_list); device->fs_devices->num_devices--; @@ -1883,23 +1886,23 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid) if (device->missing) device->fs_devices->missing_devices--; - btrfs_assign_next_active_device(root->fs_info, device, NULL); + btrfs_assign_next_active_device(fs_info, device, NULL); if (device->bdev) { device->fs_devices->open_devices--; /* remove sysfs entry */ - btrfs_sysfs_rm_device_link(root->fs_info->fs_devices, device); + btrfs_sysfs_rm_device_link(fs_info->fs_devices, device); } call_rcu(&device->rcu, free_device); - num_devices = btrfs_super_num_devices(root->fs_info->super_copy) - 1; - btrfs_set_super_num_devices(root->fs_info->super_copy, num_devices); - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + num_devices = btrfs_super_num_devices(fs_info->super_copy) - 1; + btrfs_set_super_num_devices(fs_info->super_copy, num_devices); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); if (cur_devices->open_devices == 0) { struct btrfs_fs_devices *fs_devices; - fs_devices = root->fs_info->fs_devices; + fs_devices = fs_info->fs_devices; while (fs_devices) { if (fs_devices->seed == cur_devices) { fs_devices->seed = cur_devices->seed; @@ -1912,8 +1915,8 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid) free_fs_devices(cur_devices); } - root->fs_info->num_tolerated_disk_barrier_failures = - btrfs_calc_num_tolerated_disk_barrier_failures(root->fs_info); + fs_info->num_tolerated_disk_barrier_failures = + btrfs_calc_num_tolerated_disk_barrier_failures(fs_info); /* * at this point, the device is zero sized. We want to @@ -1923,7 +1926,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path, u64 devid) struct block_device *bdev; bdev = blkdev_get_by_path(dev_name, FMODE_READ | FMODE_EXCL, - root->fs_info->bdev_holder); + fs_info->bdev_holder); if (!IS_ERR(bdev)) { btrfs_scratch_superblocks(bdev, dev_name); blkdev_put(bdev, FMODE_READ | FMODE_EXCL); @@ -1938,11 +1941,11 @@ out: error_undo: if (device->writeable) { - lock_chunks(root->fs_info); + lock_chunks(fs_info); list_add(&device->dev_alloc_list, - &root->fs_info->fs_devices->alloc_list); + &fs_info->fs_devices->alloc_list); device->fs_devices->rw_devices++; - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); } goto out; } @@ -2045,6 +2048,7 @@ void btrfs_destroy_dev_replace_tgtdev(struct btrfs_fs_info *fs_info, static int btrfs_find_device_by_path(struct btrfs_root *root, char *device_path, struct btrfs_device **device) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret = 0; struct btrfs_super_block *disk_super; u64 devid; @@ -2054,14 +2058,13 @@ static int btrfs_find_device_by_path(struct btrfs_root *root, char *device_path, *device = NULL; ret = btrfs_get_bdev_and_sb(device_path, FMODE_READ, - root->fs_info->bdev_holder, 0, &bdev, &bh); + fs_info->bdev_holder, 0, &bdev, &bh); if (ret) return ret; disk_super = (struct btrfs_super_block *)bh->b_data; devid = btrfs_stack_device_id(&disk_super->dev_item); dev_uuid = disk_super->dev_item.uuid; - *device = btrfs_find_device(root->fs_info, devid, dev_uuid, - disk_super->fsid); + *device = btrfs_find_device(fs_info, devid, dev_uuid, disk_super->fsid); brelse(bh); if (!*device) ret = -ENOENT; @@ -2073,12 +2076,14 @@ int btrfs_find_device_missing_or_by_path(struct btrfs_root *root, char *device_path, struct btrfs_device **device) { + struct btrfs_fs_info *fs_info = root->fs_info; + *device = NULL; if (strcmp(device_path, "missing") == 0) { struct list_head *devices; struct btrfs_device *tmp; - devices = &root->fs_info->fs_devices->devices; + devices = &fs_info->fs_devices->devices; /* * It is safe to read the devices since the volume_mutex * is held by the caller. @@ -2106,12 +2111,12 @@ int btrfs_find_device_by_devspec(struct btrfs_root *root, u64 devid, char *devpath, struct btrfs_device **device) { + struct btrfs_fs_info *fs_info = root->fs_info; int ret; if (devid) { ret = 0; - *device = btrfs_find_device(root->fs_info, devid, NULL, - NULL); + *device = btrfs_find_device(fs_info, devid, NULL, NULL); if (!*device) ret = -ENOENT; } else { @@ -2129,10 +2134,11 @@ int btrfs_find_device_by_devspec(struct btrfs_root *root, u64 devid, */ static int btrfs_prepare_sprout(struct btrfs_root *root) { - struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; struct btrfs_fs_devices *old_devices; struct btrfs_fs_devices *seed_devices; - struct btrfs_super_block *disk_super = root->fs_info->super_copy; + struct btrfs_super_block *disk_super = fs_info->super_copy; struct btrfs_device *device; u64 super_flags; @@ -2158,15 +2164,15 @@ static int btrfs_prepare_sprout(struct btrfs_root *root) INIT_LIST_HEAD(&seed_devices->alloc_list); mutex_init(&seed_devices->device_list_mutex); - mutex_lock(&root->fs_info->fs_devices->device_list_mutex); + mutex_lock(&fs_info->fs_devices->device_list_mutex); list_splice_init_rcu(&fs_devices->devices, &seed_devices->devices, synchronize_rcu); list_for_each_entry(device, &seed_devices->devices, dev_list) device->fs_devices = seed_devices; - lock_chunks(root->fs_info); + lock_chunks(fs_info); list_splice_init(&fs_devices->alloc_list, &seed_devices->alloc_list); - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); fs_devices->seeding = 0; fs_devices->num_devices = 0; @@ -2176,9 +2182,9 @@ static int btrfs_prepare_sprout(struct btrfs_root *root) fs_devices->seed = seed_devices; generate_random_uuid(fs_devices->fsid); - memcpy(root->fs_info->fsid, fs_devices->fsid, BTRFS_FSID_SIZE); + memcpy(fs_info->fsid, fs_devices->fsid, BTRFS_FSID_SIZE); memcpy(disk_super->fsid, fs_devices->fsid, BTRFS_FSID_SIZE); - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); super_flags = btrfs_super_flags(disk_super) & ~BTRFS_SUPER_FLAG_SEEDING; @@ -2243,8 +2249,7 @@ next_slot: BTRFS_UUID_SIZE); read_extent_buffer(leaf, fs_uuid, btrfs_device_fsid(dev_item), BTRFS_UUID_SIZE); - device = btrfs_find_device(root->fs_info, devid, dev_uuid, - fs_uuid); + device = btrfs_find_device(fs_info, devid, dev_uuid, fs_uuid); BUG_ON(!device); /* Logic error */ if (device->fs_devices->seeding) { @@ -2270,21 +2275,21 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path) struct btrfs_device *device; struct block_device *bdev; struct list_head *devices; - struct super_block *sb = root->fs_info->sb; + struct super_block *sb = fs_info->sb; struct rcu_string *name; u64 tmp; int seeding_dev = 0; int ret = 0; - if ((sb->s_flags & MS_RDONLY) && !root->fs_info->fs_devices->seeding) + if ((sb->s_flags & MS_RDONLY) && !fs_info->fs_devices->seeding) return -EROFS; bdev = blkdev_get_by_path(device_path, FMODE_WRITE | FMODE_EXCL, - root->fs_info->bdev_holder); + fs_info->bdev_holder); if (IS_ERR(bdev)) return PTR_ERR(bdev); - if (root->fs_info->fs_devices->seeding) { + if (fs_info->fs_devices->seeding) { seeding_dev = 1; down_write(&sb->s_umount); mutex_lock(&uuid_mutex); @@ -2292,20 +2297,20 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path) filemap_write_and_wait(bdev->bd_inode->i_mapping); - devices = &root->fs_info->fs_devices->devices; + devices = &fs_info->fs_devices->devices; - mutex_lock(&root->fs_info->fs_devices->device_list_mutex); + mutex_lock(&fs_info->fs_devices->device_list_mutex); list_for_each_entry(device, devices, dev_list) { if (device->bdev == bdev) { ret = -EEXIST; mutex_unlock( - &root->fs_info->fs_devices->device_list_mutex); + &fs_info->fs_devices->device_list_mutex); goto error; } } - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); - device = btrfs_alloc_device(root->fs_info, NULL, NULL); + device = btrfs_alloc_device(fs_info, NULL, NULL); if (IS_ERR(device)) { /* we can safely leave the fs_devices entry around */ ret = PTR_ERR(device); @@ -2333,9 +2338,9 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path) device->can_discard = 1; device->writeable = 1; device->generation = trans->transid; - device->io_width = root->fs_info->sectorsize; - device->io_align = root->fs_info->sectorsize; - device->sector_size = root->fs_info->sectorsize; + device->io_width = fs_info->sectorsize; + device->io_align = fs_info->sectorsize; + device->sector_size = fs_info->sectorsize; device->total_bytes = i_size_read(bdev->bd_inode); device->disk_total_bytes = device->total_bytes; device->commit_total_bytes = device->total_bytes; @@ -2353,57 +2358,56 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path) BUG_ON(ret); /* -ENOMEM */ } - device->fs_devices = root->fs_info->fs_devices; + device->fs_devices = fs_info->fs_devices; - mutex_lock(&root->fs_info->fs_devices->device_list_mutex); - lock_chunks(root->fs_info); - list_add_rcu(&device->dev_list, &root->fs_info->fs_devices->devices); + mutex_lock(&fs_info->fs_devices->device_list_mutex); + lock_chunks(fs_info); + list_add_rcu(&device->dev_list, &fs_info->fs_devices->devices); list_add(&device->dev_alloc_list, - &root->fs_info->fs_devices->alloc_list); - root->fs_info->fs_devices->num_devices++; - root->fs_info->fs_devices->open_devices++; - root->fs_info->fs_devices->rw_devices++; - root->fs_info->fs_devices->total_devices++; - root->fs_info->fs_devices->total_rw_bytes += device->total_bytes; + &fs_info->fs_devices->alloc_list); + fs_info->fs_devices->num_devices++; + fs_info->fs_devices->open_devices++; + fs_info->fs_devices->rw_devices++; + fs_info->fs_devices->total_devices++; + fs_info->fs_devices->total_rw_bytes += device->total_bytes; - spin_lock(&root->fs_info->free_chunk_lock); - root->fs_info->free_chunk_space += device->total_bytes; - spin_unlock(&root->fs_info->free_chunk_lock); + spin_lock(&fs_info->free_chunk_lock); + fs_info->free_chunk_space += device->total_bytes; + spin_unlock(&fs_info->free_chunk_lock); if (!blk_queue_nonrot(bdev_get_queue(bdev))) - root->fs_info->fs_devices->rotating = 1; + fs_info->fs_devices->rotating = 1; - tmp = btrfs_super_total_bytes(root->fs_info->super_copy); - btrfs_set_super_total_bytes(root->fs_info->super_copy, + tmp = btrfs_super_total_bytes(fs_info->super_copy); + btrfs_set_super_total_bytes(fs_info->super_copy, tmp + device->total_bytes); - tmp = btrfs_super_num_devices(root->fs_info->super_copy); - btrfs_set_super_num_devices(root->fs_info->super_copy, - tmp + 1); + tmp = btrfs_super_num_devices(fs_info->super_copy); + btrfs_set_super_num_devices(fs_info->super_copy, tmp + 1); /* add sysfs device entry */ - btrfs_sysfs_add_device_link(root->fs_info->fs_devices, device); + btrfs_sysfs_add_device_link(fs_info->fs_devices, device); /* * we've got more storage, clear any full flags on the space * infos */ - btrfs_clear_space_info_full(root->fs_info); + btrfs_clear_space_info_full(fs_info); - unlock_chunks(root->fs_info); - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + unlock_chunks(fs_info); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); if (seeding_dev) { - lock_chunks(root->fs_info); + lock_chunks(fs_info); ret = init_first_rw_device(trans, root, device); - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); if (ret) { btrfs_abort_transaction(trans, ret); goto error_trans; } } - ret = btrfs_add_device(trans, root->fs_info, device); + ret = btrfs_add_device(trans, fs_info, device); if (ret) { btrfs_abort_transaction(trans, ret); goto error_trans; @@ -2412,7 +2416,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path) if (seeding_dev) { char fsid_buf[BTRFS_UUID_UNPARSED_SIZE]; - ret = btrfs_finish_sprout(trans, root->fs_info); + ret = btrfs_finish_sprout(trans, fs_info); if (ret) { btrfs_abort_transaction(trans, ret); goto error_trans; @@ -2422,15 +2426,14 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path) * so rename the fsid on the sysfs */ snprintf(fsid_buf, BTRFS_UUID_UNPARSED_SIZE, "%pU", - root->fs_info->fsid); - if (kobject_rename(&root->fs_info->fs_devices->fsid_kobj, - fsid_buf)) - btrfs_warn(root->fs_info, - "sysfs: failed to create fsid for sprout"); + fs_info->fsid); + if (kobject_rename(&fs_info->fs_devices->fsid_kobj, fsid_buf)) + btrfs_warn(fs_info, + "sysfs: failed to create fsid for sprout"); } - root->fs_info->num_tolerated_disk_barrier_failures = - btrfs_calc_num_tolerated_disk_barrier_failures(root->fs_info); + fs_info->num_tolerated_disk_barrier_failures = + btrfs_calc_num_tolerated_disk_barrier_failures(fs_info); ret = btrfs_commit_transaction(trans, root); if (seeding_dev) { @@ -2442,10 +2445,10 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path) ret = btrfs_relocate_sys_chunks(root); if (ret < 0) - btrfs_handle_fs_error(root->fs_info, ret, - "Failed to relocate sys chunks after " - "device initialization. This can be fixed " - "using the \"btrfs balance\" command."); + btrfs_handle_fs_error(fs_info, ret, + "Failed to relocate sys chunks after " + "device initialization. This can be fixed " + "using the \"btrfs balance\" command."); trans = btrfs_attach_transaction(root); if (IS_ERR(trans)) { if (PTR_ERR(trans) == -ENOENT) @@ -2462,7 +2465,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, char *device_path) error_trans: btrfs_end_transaction(trans, root); rcu_string_free(device->name); - btrfs_sysfs_rm_device_link(root->fs_info->fs_devices, device); + btrfs_sysfs_rm_device_link(fs_info->fs_devices, device); kfree(device); error: blkdev_put(bdev, FMODE_EXCL); @@ -2536,12 +2539,12 @@ int btrfs_init_dev_replace_tgtdev(struct btrfs_root *root, char *device_path, q = bdev_get_queue(bdev); if (blk_queue_discard(q)) device->can_discard = 1; - mutex_lock(&root->fs_info->fs_devices->device_list_mutex); + mutex_lock(&fs_info->fs_devices->device_list_mutex); device->writeable = 1; device->generation = 0; - device->io_width = root->fs_info->sectorsize; - device->io_align = root->fs_info->sectorsize; - device->sector_size = root->fs_info->sectorsize; + device->io_width = fs_info->sectorsize; + device->io_align = fs_info->sectorsize; + device->sector_size = fs_info->sectorsize; device->total_bytes = btrfs_device_get_total_bytes(srcdev); device->disk_total_bytes = btrfs_device_get_disk_total_bytes(srcdev); device->bytes_used = btrfs_device_get_bytes_used(srcdev); @@ -2559,7 +2562,7 @@ int btrfs_init_dev_replace_tgtdev(struct btrfs_root *root, char *device_path, list_add(&device->dev_list, &fs_info->fs_devices->devices); fs_info->fs_devices->num_devices++; fs_info->fs_devices->open_devices++; - mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); *device_out = device; return ret; @@ -2633,7 +2636,8 @@ out: int btrfs_grow_device(struct btrfs_trans_handle *trans, struct btrfs_device *device, u64 new_size) { - struct btrfs_super_block *super_copy = device->fs_info->super_copy; + struct btrfs_fs_info *fs_info = device->fs_info; + struct btrfs_super_block *super_copy = fs_info->super_copy; struct btrfs_fs_devices *fs_devices; u64 old_total; u64 diff; @@ -2641,17 +2645,17 @@ int btrfs_grow_device(struct btrfs_trans_handle *trans, if (!device->writeable) return -EACCES; - lock_chunks(device->fs_info); + lock_chunks(fs_info); old_total = btrfs_super_total_bytes(super_copy); diff = new_size - device->total_bytes; if (new_size <= device->total_bytes || device->is_tgtdev_for_dev_replace) { - unlock_chunks(device->fs_info); + unlock_chunks(fs_info); return -EINVAL; } - fs_devices = device->fs_info->fs_devices; + fs_devices = fs_info->fs_devices; btrfs_set_super_total_bytes(super_copy, old_total + diff); device->fs_devices->total_rw_bytes += diff; @@ -2662,7 +2666,7 @@ int btrfs_grow_device(struct btrfs_trans_handle *trans, if (list_empty(&device->resized_list)) list_add_tail(&device->resized_list, &fs_devices->resized_devices); - unlock_chunks(device->fs_info); + unlock_chunks(fs_info); return btrfs_update_device(trans, device); } @@ -2688,16 +2692,16 @@ static int btrfs_free_chunk(struct btrfs_trans_handle *trans, if (ret < 0) goto out; else if (ret > 0) { /* Logic error or corruption */ - btrfs_handle_fs_error(root->fs_info, -ENOENT, - "Failed lookup while freeing chunk."); + btrfs_handle_fs_error(fs_info, -ENOENT, + "Failed lookup while freeing chunk."); ret = -ENOENT; goto out; } ret = btrfs_del_item(trans, root, path); if (ret < 0) - btrfs_handle_fs_error(root->fs_info, ret, - "Failed to delete chunk item."); + btrfs_handle_fs_error(fs_info, ret, + "Failed to delete chunk item."); out: btrfs_free_path(path); return ret; @@ -2706,8 +2710,7 @@ out: static int btrfs_del_sys_chunk(struct btrfs_fs_info *fs_info, u64 chunk_objectid, u64 chunk_offset) { - struct btrfs_root *root = fs_info->chunk_root; - struct btrfs_super_block *super_copy = root->fs_info->super_copy; + struct btrfs_super_block *super_copy = fs_info->super_copy; struct btrfs_disk_key *disk_key; struct btrfs_chunk *chunk; u8 *ptr; @@ -2718,7 +2721,7 @@ static int btrfs_del_sys_chunk(struct btrfs_fs_info *fs_info, u32 cur; struct btrfs_key key; - lock_chunks(root->fs_info); + lock_chunks(fs_info); array_size = btrfs_super_sys_array_size(super_copy); ptr = super_copy->sys_chunk_array; @@ -2748,22 +2751,21 @@ static int btrfs_del_sys_chunk(struct btrfs_fs_info *fs_info, cur += len; } } - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); return ret; } int btrfs_remove_chunk(struct btrfs_trans_handle *trans, struct btrfs_fs_info *fs_info, u64 chunk_offset) { - struct btrfs_root *root = fs_info->chunk_root; struct extent_map_tree *em_tree; struct extent_map *em; - struct btrfs_root *extent_root = root->fs_info->extent_root; + struct btrfs_root *extent_root = fs_info->extent_root; struct map_lookup *map; u64 dev_extent_len = 0; u64 chunk_objectid = BTRFS_FIRST_CHUNK_TREE_OBJECTID; int i, ret = 0; - struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices; + struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; /* Just in case */ em_tree = &fs_info->mapping_tree.map_tree; @@ -2807,14 +2809,14 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, } if (device->bytes_used > 0) { - lock_chunks(root->fs_info); + lock_chunks(fs_info); btrfs_device_set_bytes_used(device, device->bytes_used - dev_extent_len); - spin_lock(&root->fs_info->free_chunk_lock); - root->fs_info->free_chunk_space += dev_extent_len; - spin_unlock(&root->fs_info->free_chunk_lock); - btrfs_clear_space_info_full(root->fs_info); - unlock_chunks(root->fs_info); + spin_lock(&fs_info->free_chunk_lock); + fs_info->free_chunk_space += dev_extent_len; + spin_unlock(&fs_info->free_chunk_lock); + btrfs_clear_space_info_full(fs_info); + unlock_chunks(fs_info); } if (map->stripes[i].dev) { @@ -2828,8 +2830,7 @@ int btrfs_remove_chunk(struct btrfs_trans_handle *trans, } mutex_unlock(&fs_devices->device_list_mutex); - ret = btrfs_free_chunk(trans, root->fs_info, chunk_objectid, - chunk_offset); + ret = btrfs_free_chunk(trans, fs_info, chunk_objectid, chunk_offset); if (ret) { btrfs_abort_transaction(trans, ret); goto out; @@ -2861,7 +2862,6 @@ out: static int btrfs_relocate_chunk(struct btrfs_fs_info *fs_info, u64 chunk_offset) { struct btrfs_root *root = fs_info->chunk_root; - struct btrfs_root *extent_root = fs_info->extent_root; struct btrfs_trans_handle *trans; int ret; @@ -2877,24 +2877,23 @@ static int btrfs_relocate_chunk(struct btrfs_fs_info *fs_info, u64 chunk_offset) * we release the path used to search the chunk/dev tree and before * the current task acquires this mutex and calls us. */ - ASSERT(mutex_is_locked(&root->fs_info->delete_unused_bgs_mutex)); + ASSERT(mutex_is_locked(&fs_info->delete_unused_bgs_mutex)); - ret = btrfs_can_relocate(root->fs_info, chunk_offset); + ret = btrfs_can_relocate(fs_info, chunk_offset); if (ret) return -ENOSPC; /* step one, relocate all the extents inside this chunk */ btrfs_scrub_pause(root); - ret = btrfs_relocate_block_group(root->fs_info, chunk_offset); + ret = btrfs_relocate_block_group(fs_info, chunk_offset); btrfs_scrub_continue(root); if (ret) return ret; - trans = btrfs_start_trans_remove_block_group(root->fs_info, - chunk_offset); + trans = btrfs_start_trans_remove_block_group(fs_info, chunk_offset); if (IS_ERR(trans)) { ret = PTR_ERR(trans); - btrfs_handle_fs_error(root->fs_info, ret, NULL); + btrfs_handle_fs_error(fs_info, ret, NULL); return ret; } @@ -2902,14 +2901,15 @@ static int btrfs_relocate_chunk(struct btrfs_fs_info *fs_info, u64 chunk_offset) * step two, delete the device extents and the * chunk tree entries */ - ret = btrfs_remove_chunk(trans, root->fs_info, chunk_offset); - btrfs_end_transaction(trans, extent_root); + ret = btrfs_remove_chunk(trans, fs_info, chunk_offset); + btrfs_end_transaction(trans, fs_info->extent_root); return ret; } static int btrfs_relocate_sys_chunks(struct btrfs_root *root) { - struct btrfs_root *chunk_root = root->fs_info->chunk_root; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_root *chunk_root = fs_info->chunk_root; struct btrfs_path *path; struct extent_buffer *leaf; struct btrfs_chunk *chunk; @@ -2930,10 +2930,10 @@ again: key.type = BTRFS_CHUNK_ITEM_KEY; while (1) { - mutex_lock(&root->fs_info->delete_unused_bgs_mutex); + mutex_lock(&fs_info->delete_unused_bgs_mutex); ret = btrfs_search_slot(NULL, chunk_root, &key, path, 0, 0); if (ret < 0) { - mutex_unlock(&root->fs_info->delete_unused_bgs_mutex); + mutex_unlock(&fs_info->delete_unused_bgs_mutex); goto error; } BUG_ON(ret == 0); /* Corruption */ @@ -2941,7 +2941,7 @@ again: ret = btrfs_previous_item(chunk_root, path, key.objectid, key.type); if (ret) - mutex_unlock(&root->fs_info->delete_unused_bgs_mutex); + mutex_unlock(&fs_info->delete_unused_bgs_mutex); if (ret < 0) goto error; if (ret > 0) @@ -2956,14 +2956,13 @@ again: btrfs_release_path(path); if (chunk_type & BTRFS_BLOCK_GROUP_SYSTEM) { - ret = btrfs_relocate_chunk(root->fs_info, - found_key.offset); + ret = btrfs_relocate_chunk(fs_info, found_key.offset); if (ret == -ENOSPC) failed++; else BUG_ON(ret); } - mutex_unlock(&root->fs_info->delete_unused_bgs_mutex); + mutex_unlock(&fs_info->delete_unused_bgs_mutex); if (found_key.offset == 0) break; @@ -3328,7 +3327,8 @@ static int should_balance_chunk(struct btrfs_root *root, struct extent_buffer *leaf, struct btrfs_chunk *chunk, u64 chunk_offset) { - struct btrfs_balance_control *bctl = root->fs_info->balance_ctl; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_balance_control *bctl = fs_info->balance_ctl; struct btrfs_balance_args *bargs = NULL; u64 chunk_type = btrfs_chunk_type(leaf, chunk); @@ -3353,10 +3353,10 @@ static int should_balance_chunk(struct btrfs_root *root, /* usage filter */ if ((bargs->flags & BTRFS_BALANCE_ARGS_USAGE) && - chunk_usage_filter(bctl->fs_info, chunk_offset, bargs)) { + chunk_usage_filter(fs_info, chunk_offset, bargs)) { return 0; } else if ((bargs->flags & BTRFS_BALANCE_ARGS_USAGE_RANGE) && - chunk_usage_range_filter(bctl->fs_info, chunk_offset, bargs)) { + chunk_usage_range_filter(fs_info, chunk_offset, bargs)) { return 0; } @@ -4288,8 +4288,9 @@ int btrfs_check_uuid_tree(struct btrfs_fs_info *fs_info) */ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size) { + struct btrfs_fs_info *fs_info = device->fs_info; + struct btrfs_root *root = fs_info->dev_root; struct btrfs_trans_handle *trans; - struct btrfs_root *root = device->fs_info->dev_root; struct btrfs_dev_extent *dev_extent = NULL; struct btrfs_path *path; u64 length; @@ -4301,7 +4302,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size) bool checked_pending_chunks = false; struct extent_buffer *l; struct btrfs_key key; - struct btrfs_super_block *super_copy = root->fs_info->super_copy; + struct btrfs_super_block *super_copy = fs_info->super_copy; u64 old_total = btrfs_super_total_bytes(super_copy); u64 old_size = btrfs_device_get_total_bytes(device); u64 diff = old_size - new_size; @@ -4315,16 +4316,16 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size) path->reada = READA_FORWARD; - lock_chunks(root->fs_info); + lock_chunks(fs_info); btrfs_device_set_total_bytes(device, new_size); if (device->writeable) { device->fs_devices->total_rw_bytes -= diff; - spin_lock(&root->fs_info->free_chunk_lock); - root->fs_info->free_chunk_space -= diff; - spin_unlock(&root->fs_info->free_chunk_lock); + spin_lock(&fs_info->free_chunk_lock); + fs_info->free_chunk_space -= diff; + spin_unlock(&fs_info->free_chunk_lock); } - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); again: key.objectid = device->devid; @@ -4332,16 +4333,16 @@ again: key.type = BTRFS_DEV_EXTENT_KEY; do { - mutex_lock(&root->fs_info->delete_unused_bgs_mutex); + mutex_lock(&fs_info->delete_unused_bgs_mutex); ret = btrfs_search_slot(NULL, root, &key, path, 0, 0); if (ret < 0) { - mutex_unlock(&root->fs_info->delete_unused_bgs_mutex); + mutex_unlock(&fs_info->delete_unused_bgs_mutex); goto done; } ret = btrfs_previous_item(root, path, 0, key.type); if (ret) - mutex_unlock(&root->fs_info->delete_unused_bgs_mutex); + mutex_unlock(&fs_info->delete_unused_bgs_mutex); if (ret < 0) goto done; if (ret) { @@ -4355,7 +4356,7 @@ again: btrfs_item_key_to_cpu(l, &key, path->slots[0]); if (key.objectid != device->devid) { - mutex_unlock(&root->fs_info->delete_unused_bgs_mutex); + mutex_unlock(&fs_info->delete_unused_bgs_mutex); btrfs_release_path(path); break; } @@ -4364,7 +4365,7 @@ again: length = btrfs_dev_extent_length(l, dev_extent); if (key.offset + length <= new_size) { - mutex_unlock(&root->fs_info->delete_unused_bgs_mutex); + mutex_unlock(&fs_info->delete_unused_bgs_mutex); btrfs_release_path(path); break; } @@ -4372,8 +4373,8 @@ again: chunk_offset = btrfs_dev_extent_chunk_offset(l, dev_extent); btrfs_release_path(path); - ret = btrfs_relocate_chunk(root->fs_info, chunk_offset); - mutex_unlock(&root->fs_info->delete_unused_bgs_mutex); + ret = btrfs_relocate_chunk(fs_info, chunk_offset); + mutex_unlock(&fs_info->delete_unused_bgs_mutex); if (ret && ret != -ENOSPC) goto done; if (ret == -ENOSPC) @@ -4396,7 +4397,7 @@ again: goto done; } - lock_chunks(root->fs_info); + lock_chunks(fs_info); /* * We checked in the above loop all device extents that were already in @@ -4416,7 +4417,7 @@ again: if (contains_pending_extent(trans->transaction, device, &start, len)) { - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); checked_pending_chunks = true; failed = 0; retried = false; @@ -4430,11 +4431,11 @@ again: btrfs_device_set_disk_total_bytes(device, new_size); if (list_empty(&device->resized_list)) list_add_tail(&device->resized_list, - &root->fs_info->fs_devices->resized_devices); + &fs_info->fs_devices->resized_devices); WARN_ON(diff > old_total); btrfs_set_super_total_bytes(super_copy, old_total - diff); - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); /* Now btrfs_update_device() will change the on-disk size. */ ret = btrfs_update_device(trans, device); @@ -4442,14 +4443,14 @@ again: done: btrfs_free_path(path); if (ret) { - lock_chunks(root->fs_info); + lock_chunks(fs_info); btrfs_device_set_total_bytes(device, old_size); if (device->writeable) device->fs_devices->total_rw_bytes += diff; - spin_lock(&root->fs_info->free_chunk_lock); - root->fs_info->free_chunk_space += diff; - spin_unlock(&root->fs_info->free_chunk_lock); - unlock_chunks(root->fs_info); + spin_lock(&fs_info->free_chunk_lock); + fs_info->free_chunk_space += diff; + spin_unlock(&fs_info->free_chunk_lock); + unlock_chunks(fs_info); } return ret; } @@ -4458,16 +4459,17 @@ static int btrfs_add_system_chunk(struct btrfs_root *root, struct btrfs_key *key, struct btrfs_chunk *chunk, int item_size) { - struct btrfs_super_block *super_copy = root->fs_info->super_copy; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_super_block *super_copy = fs_info->super_copy; struct btrfs_disk_key disk_key; u32 array_size; u8 *ptr; - lock_chunks(root->fs_info); + lock_chunks(fs_info); array_size = btrfs_super_sys_array_size(super_copy); if (array_size + item_size + sizeof(disk_key) > BTRFS_SYSTEM_CHUNK_ARRAY_SIZE) { - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); return -EFBIG; } @@ -4478,7 +4480,7 @@ static int btrfs_add_system_chunk(struct btrfs_root *root, memcpy(ptr, chunk, item_size); item_size += sizeof(disk_key); btrfs_set_super_sys_array_size(super_copy, array_size + item_size); - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); return 0; } @@ -4770,7 +4772,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans, em->block_len = em->len; em->orig_block_len = stripe_size; - em_tree = &extent_root->fs_info->mapping_tree.map_tree; + em_tree = &info->mapping_tree.map_tree; write_lock(&em_tree->lock); ret = add_extent_mapping(em_tree, em, 0); if (!ret) { @@ -4794,13 +4796,12 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans, btrfs_device_set_bytes_used(map->stripes[i].dev, num_bytes); } - spin_lock(&extent_root->fs_info->free_chunk_lock); - extent_root->fs_info->free_chunk_space -= (stripe_size * - map->num_stripes); - spin_unlock(&extent_root->fs_info->free_chunk_lock); + spin_lock(&info->free_chunk_lock); + info->free_chunk_space -= (stripe_size * map->num_stripes); + spin_unlock(&info->free_chunk_lock); free_extent_map(em); - check_raid56_incompat_flag(extent_root->fs_info, type); + check_raid56_incompat_flag(info, type); kfree(devices_info); return 0; @@ -4840,19 +4841,19 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans, int i = 0; int ret = 0; - em_tree = &extent_root->fs_info->mapping_tree.map_tree; + em_tree = &fs_info->mapping_tree.map_tree; read_lock(&em_tree->lock); em = lookup_extent_mapping(em_tree, chunk_offset, chunk_size); read_unlock(&em_tree->lock); if (!em) { - btrfs_crit(extent_root->fs_info, "unable to find logical " + btrfs_crit(fs_info, "unable to find logical " "%Lu len %Lu", chunk_offset, chunk_size); return -EINVAL; } if (em->start != chunk_offset || em->len != chunk_size) { - btrfs_crit(extent_root->fs_info, "found a bad mapping, wanted" + btrfs_crit(fs_info, "found a bad mapping, wanted" " %Lu-%Lu, found %Lu-%Lu", chunk_offset, chunk_size, em->start, em->len); free_extent_map(em); @@ -4876,7 +4877,7 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans, * at any time during that final phase of the device replace operation * (dev-replace.c:btrfs_dev_replace_finishing()). */ - mutex_lock(&chunk_root->fs_info->fs_devices->device_list_mutex); + mutex_lock(&fs_info->fs_devices->device_list_mutex); for (i = 0; i < map->num_stripes; i++) { device = map->stripes[i].dev; dev_offset = map->stripes[i].physical; @@ -4893,7 +4894,7 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans, break; } if (ret) { - mutex_unlock(&chunk_root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); goto out; } @@ -4907,7 +4908,7 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans, memcpy(stripe->dev_uuid, device->uuid, BTRFS_UUID_SIZE); stripe++; } - mutex_unlock(&chunk_root->fs_info->fs_devices->device_list_mutex); + mutex_unlock(&fs_info->fs_devices->device_list_mutex); btrfs_set_stack_chunk_length(chunk, chunk_size); btrfs_set_stack_chunk_owner(chunk, extent_root->root_key.objectid); @@ -4916,8 +4917,7 @@ int btrfs_finish_chunk_alloc(struct btrfs_trans_handle *trans, btrfs_set_stack_chunk_num_stripes(chunk, map->num_stripes); btrfs_set_stack_chunk_io_align(chunk, map->stripe_len); btrfs_set_stack_chunk_io_width(chunk, map->stripe_len); - btrfs_set_stack_chunk_sector_size(chunk, - extent_root->fs_info->sectorsize); + btrfs_set_stack_chunk_sector_size(chunk, fs_info->sectorsize); btrfs_set_stack_chunk_sub_stripes(chunk, map->sub_stripes); key.objectid = BTRFS_FIRST_CHUNK_TREE_OBJECTID; @@ -4950,10 +4950,11 @@ out: int btrfs_alloc_chunk(struct btrfs_trans_handle *trans, struct btrfs_root *extent_root, u64 type) { + struct btrfs_fs_info *fs_info = extent_root->fs_info; u64 chunk_offset; - ASSERT(mutex_is_locked(&extent_root->fs_info->chunk_mutex)); - chunk_offset = find_next_chunk(extent_root->fs_info); + ASSERT(mutex_is_locked(&fs_info->chunk_mutex)); + chunk_offset = find_next_chunk(fs_info); return __btrfs_alloc_chunk(trans, extent_root, chunk_offset, type); } @@ -4975,7 +4976,7 @@ static noinline int init_first_rw_device(struct btrfs_trans_handle *trans, if (ret) return ret; - sys_chunk_offset = find_next_chunk(root->fs_info); + sys_chunk_offset = find_next_chunk(fs_info); alloc_profile = btrfs_get_alloc_profile(fs_info->chunk_root, 0); ret = __btrfs_alloc_chunk(trans, extent_root, sys_chunk_offset, alloc_profile); @@ -5002,9 +5003,10 @@ static inline int btrfs_chunk_max_errors(struct map_lookup *map) int btrfs_chunk_readonly(struct btrfs_root *root, u64 chunk_offset) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_map *em; struct map_lookup *map; - struct btrfs_mapping_tree *map_tree = &root->fs_info->mapping_tree; + struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree; int readonly = 0; int miss_ndevs = 0; int i; @@ -5120,10 +5122,11 @@ unsigned long btrfs_full_stripe_len(struct btrfs_root *root, struct btrfs_mapping_tree *map_tree, u64 logical) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_map *em; struct map_lookup *map; struct extent_map_tree *em_tree = &map_tree->map_tree; - unsigned long len = root->fs_info->sectorsize; + unsigned long len = fs_info->sectorsize; read_lock(&em_tree->lock); em = lookup_extent_mapping(em_tree, logical, len); @@ -6002,6 +6005,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root, struct btrfs_device *device, int rw, struct bio *bio) { + struct btrfs_fs_info *fs_info = device->fs_info; int should_queue = 1; struct btrfs_pending_bios *pending_bios; @@ -6024,7 +6028,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root, * made progress against dirty pages when we've really just put it * on a queue for later */ - atomic_inc(&root->fs_info->nr_async_bios); + atomic_inc(&fs_info->nr_async_bios); WARN_ON(bio->bi_next); bio->bi_next = NULL; bio->bi_rw |= rw; @@ -6047,8 +6051,7 @@ static noinline void btrfs_schedule_bio(struct btrfs_root *root, spin_unlock(&device->io_lock); if (should_queue) - btrfs_queue_work(root->fs_info->submit_workers, - &device->work); + btrfs_queue_work(fs_info->submit_workers, &device->work); } static void submit_stripe_bio(struct btrfs_root *root, struct btrfs_bio *bbio, @@ -6101,6 +6104,7 @@ static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical) int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, int mirror_num, int async_submit) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_device *dev; struct bio *first_bio = bio; u64 logical = (u64)bio->bi_iter.bi_sector << 9; @@ -6114,11 +6118,11 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, length = bio->bi_iter.bi_size; map_length = length; - btrfs_bio_counter_inc_blocked(root->fs_info); - ret = __btrfs_map_block(root->fs_info, rw, logical, &map_length, &bbio, - mirror_num, 1); + btrfs_bio_counter_inc_blocked(fs_info); + ret = __btrfs_map_block(fs_info, rw, logical, &map_length, &bbio, + mirror_num, 1); if (ret) { - btrfs_bio_counter_dec(root->fs_info); + btrfs_bio_counter_dec(fs_info); return ret; } @@ -6126,7 +6130,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, bbio->orig_bio = first_bio; bbio->private = first_bio->bi_private; bbio->end_io = first_bio->bi_end_io; - bbio->fs_info = root->fs_info; + bbio->fs_info = fs_info; atomic_set(&bbio->stripes_pending, bbio->num_stripes); if ((bbio->map_type & BTRFS_BLOCK_GROUP_RAID56_MASK) && @@ -6140,13 +6144,14 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, mirror_num, 1); } - btrfs_bio_counter_dec(root->fs_info); + btrfs_bio_counter_dec(fs_info); return ret; } if (map_length < length) { - btrfs_crit(root->fs_info, "mapping failed logical %llu bio len %llu len %llu", - logical, length, map_length); + btrfs_crit(fs_info, + "mapping failed logical %llu bio len %llu len %llu", + logical, length, map_length); BUG(); } @@ -6167,7 +6172,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio, bbio->stripes[dev_nr].physical, dev_nr, rw, async_submit); } - btrfs_bio_counter_dec(root->fs_info); + btrfs_bio_counter_dec(fs_info); return 0; } @@ -6267,6 +6272,7 @@ static int btrfs_check_chunk_valid(struct btrfs_root *root, struct extent_buffer *leaf, struct btrfs_chunk *chunk, u64 logical) { + struct btrfs_fs_info *fs_info = root->fs_info; u64 length; u64 stripe_len; u16 num_stripes; @@ -6280,33 +6286,31 @@ static int btrfs_check_chunk_valid(struct btrfs_root *root, type = btrfs_chunk_type(leaf, chunk); if (!num_stripes) { - btrfs_err(root->fs_info, "invalid chunk num_stripes: %u", + btrfs_err(fs_info, "invalid chunk num_stripes: %u", num_stripes); return -EIO; } - if (!IS_ALIGNED(logical, root->fs_info->sectorsize)) { - btrfs_err(root->fs_info, - "invalid chunk logical %llu", logical); + if (!IS_ALIGNED(logical, fs_info->sectorsize)) { + btrfs_err(fs_info, "invalid chunk logical %llu", logical); return -EIO; } - if (btrfs_chunk_sector_size(leaf, chunk) != root->fs_info->sectorsize) { - btrfs_err(root->fs_info, "invalid chunk sectorsize %u", + if (btrfs_chunk_sector_size(leaf, chunk) != fs_info->sectorsize) { + btrfs_err(fs_info, "invalid chunk sectorsize %u", btrfs_chunk_sector_size(leaf, chunk)); return -EIO; } - if (!length || !IS_ALIGNED(length, root->fs_info->sectorsize)) { - btrfs_err(root->fs_info, - "invalid chunk length %llu", length); + if (!length || !IS_ALIGNED(length, fs_info->sectorsize)) { + btrfs_err(fs_info, "invalid chunk length %llu", length); return -EIO; } if (!is_power_of_2(stripe_len) || stripe_len != BTRFS_STRIPE_LEN) { - btrfs_err(root->fs_info, "invalid chunk stripe length: %llu", + btrfs_err(fs_info, "invalid chunk stripe length: %llu", stripe_len); return -EIO; } if (~(BTRFS_BLOCK_GROUP_TYPE_MASK | BTRFS_BLOCK_GROUP_PROFILE_MASK) & type) { - btrfs_err(root->fs_info, "unrecognized chunk type: %llu", + btrfs_err(fs_info, "unrecognized chunk type: %llu", ~(BTRFS_BLOCK_GROUP_TYPE_MASK | BTRFS_BLOCK_GROUP_PROFILE_MASK) & btrfs_chunk_type(leaf, chunk)); @@ -6319,7 +6323,7 @@ static int btrfs_check_chunk_valid(struct btrfs_root *root, (type & BTRFS_BLOCK_GROUP_DUP && num_stripes > 2) || ((type & BTRFS_BLOCK_GROUP_PROFILE_MASK) == 0 && num_stripes != 1)) { - btrfs_err(root->fs_info, + btrfs_err(fs_info, "invalid num_stripes:sub_stripes %u:%u for profile %llu", num_stripes, sub_stripes, type & BTRFS_BLOCK_GROUP_PROFILE_MASK); @@ -6333,7 +6337,8 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key, struct extent_buffer *leaf, struct btrfs_chunk *chunk) { - struct btrfs_mapping_tree *map_tree = &root->fs_info->mapping_tree; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree; struct map_lookup *map; struct extent_map *em; u64 logical; @@ -6397,22 +6402,22 @@ static int read_one_chunk(struct btrfs_root *root, struct btrfs_key *key, read_extent_buffer(leaf, uuid, (unsigned long) btrfs_stripe_dev_uuid_nr(chunk, i), BTRFS_UUID_SIZE); - map->stripes[i].dev = btrfs_find_device(root->fs_info, devid, + map->stripes[i].dev = btrfs_find_device(fs_info, devid, uuid, NULL); if (!map->stripes[i].dev && - !btrfs_test_opt(root->fs_info, DEGRADED)) { + !btrfs_test_opt(fs_info, DEGRADED)) { free_extent_map(em); return -EIO; } if (!map->stripes[i].dev) { map->stripes[i].dev = - add_missing_dev(root, root->fs_info->fs_devices, + add_missing_dev(root, fs_info->fs_devices, devid, uuid); if (!map->stripes[i].dev) { free_extent_map(em); return -EIO; } - btrfs_warn(root->fs_info, "devid %llu uuid %pU is missing", + btrfs_warn(fs_info, "devid %llu uuid %pU is missing", devid, uuid); } map->stripes[i].dev->in_fs_metadata = 1; @@ -6453,12 +6458,13 @@ static void fill_device_from_item(struct extent_buffer *leaf, static struct btrfs_fs_devices *open_seed_devices(struct btrfs_root *root, u8 *fsid) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_fs_devices *fs_devices; int ret; BUG_ON(!mutex_is_locked(&uuid_mutex)); - fs_devices = root->fs_info->fs_devices->seed; + fs_devices = fs_info->fs_devices->seed; while (fs_devices) { if (!memcmp(fs_devices->fsid, fsid, BTRFS_UUID_SIZE)) return fs_devices; @@ -6468,7 +6474,7 @@ static struct btrfs_fs_devices *open_seed_devices(struct btrfs_root *root, fs_devices = find_fsid(fsid); if (!fs_devices) { - if (!btrfs_test_opt(root->fs_info, DEGRADED)) + if (!btrfs_test_opt(fs_info, DEGRADED)) return ERR_PTR(-ENOENT); fs_devices = alloc_fs_devices(fsid); @@ -6485,7 +6491,7 @@ static struct btrfs_fs_devices *open_seed_devices(struct btrfs_root *root, return fs_devices; ret = __btrfs_open_devices(fs_devices, FMODE_READ, - root->fs_info->bdev_holder); + fs_info->bdev_holder); if (ret) { free_fs_devices(fs_devices); fs_devices = ERR_PTR(ret); @@ -6499,8 +6505,8 @@ static struct btrfs_fs_devices *open_seed_devices(struct btrfs_root *root, goto out; } - fs_devices->seed = root->fs_info->fs_devices->seed; - root->fs_info->fs_devices->seed = fs_devices; + fs_devices->seed = fs_info->fs_devices->seed; + fs_info->fs_devices->seed = fs_devices; out: return fs_devices; } @@ -6509,7 +6515,8 @@ static int read_one_dev(struct btrfs_root *root, struct extent_buffer *leaf, struct btrfs_dev_item *dev_item) { - struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices; + struct btrfs_fs_info *fs_info = root->fs_info; + struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; struct btrfs_device *device; u64 devid; int ret; @@ -6522,24 +6529,24 @@ static int read_one_dev(struct btrfs_root *root, read_extent_buffer(leaf, fs_uuid, btrfs_device_fsid(dev_item), BTRFS_UUID_SIZE); - if (memcmp(fs_uuid, root->fs_info->fsid, BTRFS_UUID_SIZE)) { + if (memcmp(fs_uuid, fs_info->fsid, BTRFS_UUID_SIZE)) { fs_devices = open_seed_devices(root, fs_uuid); if (IS_ERR(fs_devices)) return PTR_ERR(fs_devices); } - device = btrfs_find_device(root->fs_info, devid, dev_uuid, fs_uuid); + device = btrfs_find_device(fs_info, devid, dev_uuid, fs_uuid); if (!device) { - if (!btrfs_test_opt(root->fs_info, DEGRADED)) + if (!btrfs_test_opt(fs_info, DEGRADED)) return -EIO; device = add_missing_dev(root, fs_devices, devid, dev_uuid); if (!device) return -ENOMEM; - btrfs_warn(root->fs_info, "devid %llu uuid %pU missing", + btrfs_warn(fs_info, "devid %llu uuid %pU missing", devid, dev_uuid); } else { - if (!device->bdev && !btrfs_test_opt(root->fs_info, DEGRADED)) + if (!device->bdev && !btrfs_test_opt(fs_info, DEGRADED)) return -EIO; if(!device->bdev && !device->missing) { @@ -6568,7 +6575,7 @@ static int read_one_dev(struct btrfs_root *root, } } - if (device->fs_devices != root->fs_info->fs_devices) { + if (device->fs_devices != fs_info->fs_devices) { BUG_ON(device->writeable); if (device->generation != btrfs_device_generation(leaf, dev_item)) @@ -6579,10 +6586,10 @@ static int read_one_dev(struct btrfs_root *root, device->in_fs_metadata = 1; if (device->writeable && !device->is_tgtdev_for_dev_replace) { device->fs_devices->total_rw_bytes += device->total_bytes; - spin_lock(&root->fs_info->free_chunk_lock); - root->fs_info->free_chunk_space += device->total_bytes - + spin_lock(&fs_info->free_chunk_lock); + fs_info->free_chunk_space += device->total_bytes - device->bytes_used; - spin_unlock(&root->fs_info->free_chunk_lock); + spin_unlock(&fs_info->free_chunk_lock); } ret = 0; return ret; @@ -6591,7 +6598,7 @@ static int read_one_dev(struct btrfs_root *root, int btrfs_read_sys_array(struct btrfs_fs_info *fs_info) { struct btrfs_root *root = fs_info->tree_root; - struct btrfs_super_block *super_copy = root->fs_info->super_copy; + struct btrfs_super_block *super_copy = fs_info->super_copy; struct extent_buffer *sb; struct btrfs_disk_key *disk_key; struct btrfs_chunk *chunk; @@ -6605,7 +6612,7 @@ int btrfs_read_sys_array(struct btrfs_fs_info *fs_info) u64 type; struct btrfs_key key; - ASSERT(BTRFS_SUPER_INFO_SIZE <= root->fs_info->nodesize); + ASSERT(BTRFS_SUPER_INFO_SIZE <= fs_info->nodesize); /* * This will create extent buffer of nodesize, superblock size is * fixed to BTRFS_SUPER_INFO_SIZE. If nodesize > sb size, this will @@ -6671,7 +6678,7 @@ int btrfs_read_sys_array(struct btrfs_fs_info *fs_info) type = btrfs_chunk_type(sb, chunk); if ((type & BTRFS_BLOCK_GROUP_SYSTEM) == 0) { - btrfs_err(root->fs_info, + btrfs_err(fs_info, "invalid chunk type %llu in sys_array at offset %u", type, cur_offset); ret = -EIO; @@ -6724,7 +6731,7 @@ int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info) return -ENOMEM; mutex_lock(&uuid_mutex); - lock_chunks(root->fs_info); + lock_chunks(fs_info); /* * Read all device items, and then all the chunk items. All @@ -6772,26 +6779,26 @@ int btrfs_read_chunk_tree(struct btrfs_fs_info *fs_info) * After loading chunk tree, we've got all device information, * do another round of validation checks. */ - if (total_dev != root->fs_info->fs_devices->total_devices) { - btrfs_err(root->fs_info, + if (total_dev != fs_info->fs_devices->total_devices) { + btrfs_err(fs_info, "super_num_devices %llu mismatch with num_devices %llu found here", - btrfs_super_num_devices(root->fs_info->super_copy), + btrfs_super_num_devices(fs_info->super_copy), total_dev); ret = -EINVAL; goto error; } - if (btrfs_super_total_bytes(root->fs_info->super_copy) < - root->fs_info->fs_devices->total_rw_bytes) { - btrfs_err(root->fs_info, + if (btrfs_super_total_bytes(fs_info->super_copy) < + fs_info->fs_devices->total_rw_bytes) { + btrfs_err(fs_info, "super_total_bytes %llu mismatch with fs_devices total_rw_bytes %llu", - btrfs_super_total_bytes(root->fs_info->super_copy), - root->fs_info->fs_devices->total_rw_bytes); + btrfs_super_total_bytes(fs_info->super_copy), + fs_info->fs_devices->total_rw_bytes); ret = -EINVAL; goto error; } ret = 0; error: - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); mutex_unlock(&uuid_mutex); btrfs_free_path(path); @@ -6902,7 +6909,7 @@ static int update_dev_stat_item(struct btrfs_trans_handle *trans, BUG_ON(!path); ret = btrfs_search_slot(trans, dev_root, &key, path, -1, 1); if (ret < 0) { - btrfs_warn_in_rcu(dev_root->fs_info, + btrfs_warn_in_rcu(fs_info, "error %d while searching for dev_stats item for device %s", ret, rcu_str_deref(device->name)); goto out; @@ -6913,7 +6920,7 @@ static int update_dev_stat_item(struct btrfs_trans_handle *trans, /* need to delete old one and insert a new one */ ret = btrfs_del_item(trans, dev_root, path); if (ret != 0) { - btrfs_warn_in_rcu(dev_root->fs_info, + btrfs_warn_in_rcu(fs_info, "delete too small dev_stats item for device %s failed %d", rcu_str_deref(device->name), ret); goto out; @@ -6927,7 +6934,7 @@ static int update_dev_stat_item(struct btrfs_trans_handle *trans, ret = btrfs_insert_empty_item(trans, dev_root, path, &key, sizeof(*ptr)); if (ret < 0) { - btrfs_warn_in_rcu(dev_root->fs_info, + btrfs_warn_in_rcu(fs_info, "insert dev_stats item for device %s failed %d", rcu_str_deref(device->name), ret); goto out; @@ -7015,19 +7022,20 @@ static void btrfs_dev_stat_print_on_load(struct btrfs_device *dev) int btrfs_get_dev_stats(struct btrfs_root *root, struct btrfs_ioctl_get_dev_stats *stats) { + struct btrfs_fs_info *fs_info = root->fs_info; struct btrfs_device *dev; - struct btrfs_fs_devices *fs_devices = root->fs_info->fs_devices; + struct btrfs_fs_devices *fs_devices = fs_info->fs_devices; int i; mutex_lock(&fs_devices->device_list_mutex); - dev = btrfs_find_device(root->fs_info, stats->devid, NULL, NULL); + dev = btrfs_find_device(fs_info, stats->devid, NULL, NULL); mutex_unlock(&fs_devices->device_list_mutex); if (!dev) { - btrfs_warn(root->fs_info, "get dev_stats failed, device not found"); + btrfs_warn(fs_info, "get dev_stats failed, device not found"); return -ENODEV; } else if (!dev->dev_stats_valid) { - btrfs_warn(root->fs_info, "get dev_stats failed, not yet valid"); + btrfs_warn(fs_info, "get dev_stats failed, not yet valid"); return -ENODEV; } else if (stats->flags & BTRFS_DEV_STATS_RESET) { for (i = 0; i < BTRFS_DEV_STAT_VALUES_MAX; i++) { @@ -7104,6 +7112,7 @@ void btrfs_update_commit_device_size(struct btrfs_fs_info *fs_info) void btrfs_update_commit_device_bytes_used(struct btrfs_root *root, struct btrfs_transaction *transaction) { + struct btrfs_fs_info *fs_info = root->fs_info; struct extent_map *em; struct map_lookup *map; struct btrfs_device *dev; @@ -7113,7 +7122,7 @@ void btrfs_update_commit_device_bytes_used(struct btrfs_root *root, return; /* In order to kick the device replace finish process */ - lock_chunks(root->fs_info); + lock_chunks(fs_info); list_for_each_entry(em, &transaction->pending_chunks, list) { map = em->map_lookup; @@ -7122,7 +7131,7 @@ void btrfs_update_commit_device_bytes_used(struct btrfs_root *root, dev->commit_bytes_used = dev->bytes_used; } } - unlock_chunks(root->fs_info); + unlock_chunks(fs_info); } void btrfs_set_fs_info_ptr(struct btrfs_fs_info *fs_info) |