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| author | Chao Yu <yuchao0@huawei.com> | 2020-12-09 16:43:26 +0800 |
|---|---|---|
| committer | Jaegeuk Kim <jaegeuk@kernel.org> | 2021-01-11 01:00:39 -0800 |
| commit | ec0d0eb347b05377ad2e03c51cb1d08d6ed35619 (patch) | |
| tree | c5c2f0e25476eeafb1afad2649cc9c60ccab0846 | |
| parent | 0ba061b9e957791e8120b6acb589a26fa7bbbb53 (diff) | |
| download | linux-next-ec0d0eb347b05377ad2e03c51cb1d08d6ed35619.tar.gz | |
f2fs: compress: deny setting unsupported compress algorithm
Notice: this object is not reachable from any branch.
If kernel doesn't support certain kinds of compress algorithm, deny to set
them as compress algorithm of f2fs via 'compress_algorithm=%s' mount option.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Notice: this object is not reachable from any branch.
| -rw-r--r-- | fs/f2fs/super.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index bcad64ff5b647..c39c03ac74684 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -934,9 +934,14 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) if (!name) return -ENOMEM; if (!strcmp(name, "lzo")) { +#ifdef CONFIG_F2FS_FS_LZO F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZO; +#else + f2fs_info(sbi, "kernel doesn't support lzo compression"); +#endif } else if (!strncmp(name, "lz4", 3)) { +#ifdef CONFIG_F2FS_FS_LZ4 ret = f2fs_compress_set_level(sbi, name, COMPRESS_LZ4); if (ret) { @@ -945,7 +950,11 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) } F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4; +#else + f2fs_info(sbi, "kernel doesn't support lz4 compression"); +#endif } else if (!strncmp(name, "zstd", 4)) { +#ifdef CONFIG_F2FS_FS_ZSTD ret = f2fs_compress_set_level(sbi, name, COMPRESS_ZSTD); if (ret) { @@ -954,9 +963,16 @@ static int parse_options(struct super_block *sb, char *options, bool is_remount) } F2FS_OPTION(sbi).compress_algorithm = COMPRESS_ZSTD; +#else + f2fs_info(sbi, "kernel doesn't support zstd compression"); +#endif } else if (!strcmp(name, "lzo-rle")) { +#ifdef CONFIG_F2FS_FS_LZORLE F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZORLE; +#else + f2fs_info(sbi, "kernel doesn't support lzorle compression"); +#endif } else { kfree(name); return -EINVAL; |