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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
f2d7e7573b
Add three tests to look for quota bugs in xfs reflink. The first test looks for problems when we have speculative cow reservations in memory, we chown the file, but the reservations don't move to the new owner. The second test checks that we remembered to dqattach the inodes before performing reflink operations. The third is a stress test for reflink quota handling near enospc and helped us to find a directio cow write corruption bug when free space is fragmented. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
120 lines
3.7 KiB
Bash
Executable File
120 lines
3.7 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 442
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#
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# Force enable all XFS quotas, run fsstress until the fs runs out of
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# space, and make sure the quotas are still correct when we're done.
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# This is a general regression/stress test for numerous quota bugs with
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# reflink and copy on write.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2018 Oracle, Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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$KILLALL_PROG -9 fsstress > /dev/null 2>&1
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/quota
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. ./common/filter
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. ./common/reflink
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# Modify as appropriate.
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_supported_fs xfs
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_supported_os Linux
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_require_scratch_reflink
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_require_quota
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_require_command "$KILLALL_PROG" "killall"
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rm -f $seqres.full
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report_quota_blocks() {
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$XFS_QUOTA_PROG -x -c "report $1" $SCRATCH_MNT | \
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awk '{x += $2;} END { print(x); }'
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}
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compare_quota_to_du() {
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test $1 -eq $2 || echo "$3 quota $2 blocks does not match du $1 blocks?"
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}
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# Make sure the user/group/project quota block counts match the du output.
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# This ensures that we did the quota accounting correctly and that we're
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# accurately reporting cow preallocation blocks in stat.
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check_quota_du_blocks() {
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sync
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#$XFS_QUOTA_PROG -x -c 'report' $SCRATCH_MNT >> $seqres.full
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du_rep=$(du -ks $SCRATCH_MNT | awk '{print $1}')
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u_rep=$(report_quota_blocks -u)
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g_rep=$(report_quota_blocks -g)
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p_rep=$(report_quota_blocks -p)
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compare_quota_to_du $du_rep $u_rep "user"
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compare_quota_to_du $du_rep $g_rep "group"
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compare_quota_to_du $du_rep $p_rep "project"
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}
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echo "Format and fsstress"
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_qmount_option "usrquota,grpquota,prjquota"
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# We use a small volume so that we hit ENOSPC. This is critical for
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# regression testing a bug in the directio write code that could result in fs
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# corruption ("xfs: check reflink allocation mappings").
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#
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# This started as a test for quota accounting problems ("xfs: treat CoW fork
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# operations as delalloc for quota accounting") and ("xfs: call
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# xfs_qm_dqattach before performing reflink operations") though each of those
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# tests now have separate faster-running regression tests.
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_scratch_mkfs_sized $((1600 * 1048576)) > $seqres.full 2>&1
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_scratch_mount >> $seqres.full 2>&1 || _fail "mount failed..."
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nr_cpus=$((LOAD_FACTOR * 4))
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nr_ops=$((25000 * nr_cpus * TIME_FACTOR))
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$FSSTRESS_PROG $FSSTRESS_AVOID -w -d $SCRATCH_MNT -n $nr_ops -p $nr_cpus >> $seqres.full
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echo "Check quota before remount"
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check_quota_du_blocks
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# Clear out all the preallocations before we quotacheck.
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# The count comparison in _check_quota_usage will be unhappy if we don't
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# manage to clean out all the cow preallocations before the remount.
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_scratch_unmount
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_scratch_mount
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# Make sure the usage doesn't change after quotacheck.
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echo "Check quota after remount"
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_check_quota_usage
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check_quota_du_blocks
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# success, all done
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status=0
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exit
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