2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (C) 2019 SUSE Linux Products GmbH. All Rights Reserved.
7 # Test btrfs consistency after each FUA for a workload with snapshot creation
11 seqres=$RESULT_DIR/$seq
12 echo "QA output created by $seq"
16 status=1 # failure is the default!
17 trap "_cleanup; exit \$status" 0 1 2 3 15
22 kill -q $pid1 &> /dev/null
23 kill -q $pid2 &> /dev/null
24 "$KILLALL_PROG" -q $FSSTRESS_PROG &> /dev/null
26 _log_writes_cleanup &> /dev/null
30 # get standard environment, filters and checks
34 . ./common/dmlogwrites
36 # remove previous $seqres.full before test
39 # real QA test starts here
41 # Modify as appropriate.
44 _require_command "$KILLALL_PROG" killall
45 _require_command "$BLKDISCARD_PROG" blkdiscard
46 _require_btrfs_fs_feature "no_holes"
47 _require_btrfs_mkfs_feature "no-holes"
52 # We require a 4K nodesize to ensure the test isn't too slow
53 if [ $(get_page_size) -ne 4096 ]; then
54 _notrun "This test doesn't support non-4K page size yet"
58 nr_cpus=$("$here/src/feature" -o)
59 # cap nr_cpus to 8 to avoid spending too much time on hosts with many cpus
60 if [ $nr_cpus -gt 8 ]; then
63 fsstress_args=$(_scale_fsstress_args -w -d $SCRATCH_MNT -n 99999 -p $nr_cpus \
65 _log_writes_init $SCRATCH_DEV
67 # Discard the whole devices so when some tree pointer is wrong, it won't point
68 # to some older valid tree blocks, so we can detect it.
69 $BLKDISCARD_PROG $LOGWRITES_DMDEV > /dev/null 2>&1
71 # Use no-holes to avoid warnings of missing file extent items (expected
72 # for holes due to mix of buffered and direct IO writes).
73 # And use 4K nodesize to bump tree height.
74 _log_writes_mkfs -O no-holes -n 4k >> $seqres.full
77 $BTRFS_UTIL_PROG subvolume create $SCRATCH_MNT/src > /dev/null
78 mkdir -p $SCRATCH_MNT/snapshots
79 mkdir -p $SCRATCH_MNT/src/padding
84 echo "$basedir/$(ls $basedir | sort -R | tail -1)"
89 trap "wait; exit" SIGTERM
93 $BTRFS_UTIL_PROG subvolume snapshot \
94 $SCRATCH_MNT/src $SCRATCH_MNT/snapshots/$i \
96 # Do something small to make snapshots different
97 rm -f "$(random_file $SCRATCH_MNT/src/padding)"
98 rm -f "$(random_file $SCRATCH_MNT/src/padding)"
99 touch "$(random_file $SCRATCH_MNT/src/padding)"
100 touch "$SCRATCH_MNT/src/padding/random_$RANDOM"
109 trap "wait; exit" SIGTERM
113 $BTRFS_UTIL_PROG subvolume delete \
114 "$(random_file $SCRATCH_MNT/snapshots)" \
119 # Replay and check each fua/flush (specified by $2) point.
121 # Since dm-log-writes records bio sequentially, even just replaying a range
122 # still needs to iterate all records before the end point.
123 # When number of records grows, it will be unacceptably slow, thus we need
124 # to use relay-log itself to trigger fsck, avoid unnecessary seek.
125 log_writes_fast_replay_check()
129 local fsck_command="$BTRFS_UTIL_PROG check $blkdev"
132 [ -z "$check_point" -o -z "$blkdev" ] && _fail \
133 "check_point and blkdev must be specified for log_writes_fast_replay_check"
135 $here/src/log-writes/replay-log --log $LOGWRITES_DEV \
136 --replay $blkdev --check $check_point --fsck "$fsck_command" \
139 tail -n 150 $tmp.full_fsck > $seqres.full
140 [ $ret -ne 0 ] && _fail "fsck failed during replay"
143 xattr_value=$(printf '%0.sX' $(seq 1 3800))
145 # Bumping tree height to level 2.
146 for ((i = 0; i < 64; i++)); do
147 touch "$SCRATCH_MNT/src/padding/$i"
148 $SETFATTR_PROG -n 'user.x1' -v $xattr_value "$SCRATCH_MNT/src/padding/$i"
151 _log_writes_mark prepare
158 "$FSSTRESS_PROG" $fsstress_args > /dev/null &
161 "$KILLALL_PROG" -q "$FSSTRESS_PROG" &> /dev/null
162 kill $pid1 &> /dev/null
163 kill $pid2 &> /dev/null
168 log_writes_fast_replay_check fua "$SCRATCH_DEV"
170 echo "Silence is golden"