2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2016 Fujitsu. All Rights Reserved.
7 # Test if qgroup can handle extent de-reference during reallocation.
8 # "extent de-reference" means that reducing an extent's reference count
9 # or freeing an extent.
10 # Although current qgroup can handle it, we still need to prevent any
11 # regression which may break current qgroup.
14 _begin_fstest auto qgroup balance
16 # Import common functions.
19 # real QA test starts here
22 _require_btrfs_qgroup_report
24 _scratch_mkfs >/dev/null
27 _run_btrfs_util_prog quota enable $SCRATCH_MNT
28 _run_btrfs_util_prog quota rescan -w $SCRATCH_MNT
30 # Increase the probability of generating de-refer extent, and decrease
32 args=`_scale_fsstress_args -z \
33 -f write=10 -f unlink=10 \
34 -f creat=10 -f fsync=10 \
35 -f fsync=10 -n 100000 -p 2 \
36 -d $SCRATCH_MNT/stress_dir`
37 echo "Run fsstress $args" >>$seqres.full
38 $FSSTRESS_PROG $args >/dev/null 2>&1 &
41 echo "Start balance" >>$seqres.full
42 _btrfs_stress_balance -d $SCRATCH_MNT >/dev/null 2>&1 &
45 # 30s is enough to trigger bug
46 sleep $((30*$TIME_FACTOR))
47 kill $fsstress_pid $balance_pid &> /dev/null
50 # kill _btrfs_stress_balance can't end balance, so call btrfs balance cancel
51 # to cancel running or paused balance.
52 $BTRFS_UTIL_PROG balance cancel $SCRATCH_MNT &> /dev/null
54 _run_btrfs_util_prog filesystem sync $SCRATCH_MNT
58 # qgroup will be checked at _check_scratch_fs() by fstest.
59 echo "Silence is golden"