| #! /bin/bash |
| # FS QA Test 028 |
| # |
| # Test if qgroup can handle extent de-reference during reallocation. |
| # "extent de-reference" means that reducing an extent's reference count |
| # or freeing an extent. |
| # Although current qgroup can handle it, we still need to prevent any |
| # regression which may break current qgroup. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2016 Fujitsu. All Rights Reserved. |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it would be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| #----------------------------------------------------------------------- |
| # |
| |
| 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 |
| |
| # remove previous $seqres.full before test |
| rm -f $seqres.full |
| |
| # real QA test starts here |
| _supported_fs btrfs |
| _supported_os Linux |
| _require_scratch |
| _require_btrfs_qgroup_report |
| |
| _scratch_mkfs >/dev/null |
| _scratch_mount |
| |
| _run_btrfs_util_prog quota enable $SCRATCH_MNT |
| _run_btrfs_util_prog quota rescan -w $SCRATCH_MNT |
| |
| # Increase the probability of generating de-refer extent, and decrease |
| # other. |
| args=`_scale_fsstress_args -z \ |
| -f write=10 -f unlink=10 \ |
| -f creat=10 -f fsync=10 \ |
| -f fsync=10 -n 100000 -p 2 \ |
| -d $SCRATCH_MNT/stress_dir` |
| echo "Run fsstress $args" >>$seqres.full |
| $FSSTRESS_PROG $args >/dev/null 2>&1 & |
| fsstress_pid=$! |
| |
| echo "Start balance" >>$seqres.full |
| _btrfs_stress_balance -d $SCRATCH_MNT >/dev/null 2>&1 & |
| balance_pid=$! |
| |
| # 30s is enough to trigger bug |
| sleep $((30*$TIME_FACTOR)) |
| kill $fsstress_pid $balance_pid |
| wait |
| |
| # kill _btrfs_stress_balance can't end balance, so call btrfs balance cancel |
| # to cancel running or paused balance. |
| $BTRFS_UTIL_PROG balance cancel $SCRATCH_MNT &> /dev/null |
| |
| _run_btrfs_util_prog filesystem sync $SCRATCH_MNT |
| |
| _scratch_unmount |
| |
| # qgroup will be checked at _check_scratch_fs() by fstest. |
| echo "Silence is golden" |
| status=0 |
| |
| exit |