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|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2017 Oracle. All Rights Reserved.
#
# FS QA Test 154
#
# Test for reappearing missing device functionality.
# This test will fail without the btrfs kernel patch
# [PATCH] btrfs: handle dynamically reappearing missing device
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
here=`pwd`
tmp=/tmp/$$
status=1 # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15
_cleanup()
{
cd /
rm -f $tmp.*
}
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/module
# remove previous $seqres.full before test
rm -f $seqres.full
# real QA test starts here
_supported_fs btrfs
_supported_os Linux
_require_scratch_dev_pool 2
_require_btrfs_forget_or_module_loadable
_scratch_dev_pool_get 2
DEV1=`echo $SCRATCH_DEV_POOL | awk '{print $1}'`
DEV2=`echo $SCRATCH_DEV_POOL | awk '{print $2}'`
echo DEV1=$DEV1 >> $seqres.full
echo DEV2=$DEV2 >> $seqres.full
# Balance won't be successful if filled too much
DEV1_SZ=`blockdev --getsize64 $DEV1`
DEV2_SZ=`blockdev --getsize64 $DEV2`
# get min
MAX_FS_SZ=`echo -e "$DEV1_SZ\n$DEV2_SZ" | sort -n | head -1`
# Need disks with more than 2G
if [ $MAX_FS_SZ -lt 2000000000 ]; then
_scratch_dev_pool_put
_notrun "Smallest dev size $MAX_FS_SZ, Need at least 2G"
fi
MAX_FS_SZ=100000000
bs="1M"
COUNT=$(($MAX_FS_SZ / 1000000))
CHECKPOINT1=0
CHECKPOINT2=0
setup()
{
echo >> $seqres.full
echo "MAX_FS_SZ=$MAX_FS_SZ COUNT=$COUNT" >> $seqres.full
echo "setup"
echo "-----setup-----" >> $seqres.full
_scratch_pool_mkfs "-mraid1 -draid1" >> $seqres.full 2>&1
_scratch_mount >> $seqres.full 2>&1
dd if=/dev/urandom of="$SCRATCH_MNT"/tf bs=$bs count=1 \
>>$seqres.full 2>&1
_run_btrfs_util_prog filesystem show -m ${SCRATCH_MNT}
_run_btrfs_util_prog filesystem df $SCRATCH_MNT
COUNT=$(( $COUNT - 1 ))
echo "unmount" >> $seqres.full
_scratch_unmount
}
degrade_mount_write()
{
echo >> $seqres.full
echo "--degraded mount: max_fs_sz $max_fs_sz bytes--" >> $seqres.full
echo
echo "degraded mount"
echo "clean btrfs ko" >> $seqres.full
# un-scan the btrfs devices
_btrfs_forget_or_module_reload
_mount -o degraded $DEV1 $SCRATCH_MNT >>$seqres.full 2>&1
cnt=$(( $COUNT/10 ))
dd if=/dev/urandom of="$SCRATCH_MNT"/tf1 bs=$bs count=$cnt \
>>$seqres.full 2>&1
COUNT=$(( $COUNT - $cnt ))
_run_btrfs_util_prog filesystem show -m $SCRATCH_MNT
_run_btrfs_util_prog filesystem df $SCRATCH_MNT
CHECKPOINT1=`md5sum $SCRATCH_MNT/tf1`
echo $SCRATCH_MNT/tf1:$CHECKPOINT1 >> $seqres.full
}
scan_missing_dev_and_write()
{
echo >> $seqres.full
echo "--scan missing $DEV2--" >> $seqres.full
echo
echo "scan missing dev and write"
_run_btrfs_util_prog device scan $DEV2
echo >> $seqres.full
_run_btrfs_util_prog filesystem show -m ${SCRATCH_MNT}
_run_btrfs_util_prog filesystem df ${SCRATCH_MNT}
dd if=/dev/urandom of="$SCRATCH_MNT"/tf2 bs=$bs count=$COUNT \
>>$seqres.full 2>&1
CHECKPOINT2=`md5sum $SCRATCH_MNT/tf2`
echo $SCRATCH_MNT/tf2:$CHECKPOINT2 >> $seqres.full
}
balance_convert()
{
echo >> $seqres.full
echo "----- run balance -----" >> $seqres.full
echo
echo "run balance"
_run_btrfs_balance_start -dconvert=raid1 \
-mconvert=raid1 $SCRATCH_MNT >> $seqres.full
}
verify()
{
echo >> $seqres.full
echo "--mount reconstructed dev only and check md5sum--" >> $seqres.full
echo
echo "mount reconstructed dev only and check md5sum"
echo "unmount" >> $seqres.full
_scratch_unmount
_btrfs_forget_or_module_reload
_mount -o degraded $DEV2 $SCRATCH_MNT >>$seqres.full 2>&1
verify_checkpoint1=`md5sum $SCRATCH_MNT/tf1`
verify_checkpoint2=`md5sum $SCRATCH_MNT/tf2`
if [ "$verify_checkpoint1" != "$CHECKPOINT1" ]; then
echo "checkpoint1 on reappeared disk does not match after balance"
fi
if [ "$verify_checkpoint2" != "$CHECKPOINT2" ]; then
echo "checkpoint2 on reappeared disk does not match after balance"
fi
}
setup
degrade_mount_write
scan_missing_dev_and_write
balance_convert
verify
$UMOUNT_PROG $DEV2
_scratch_dev_pool_put
status=0
exit
|
