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Darrick J. Wong
f6ddaf130d
This is a regression test for a bug in the XFS implementation of FSSETXATTR. When we try to change a file's project id, the quota reservation code will update the incore quota reservations for delayed allocation blocks. Unfortunately, it does this before we finish validating all the FSSETXATTR parameters, which means that if we decide to bail out, we also fail to undo the incore changes. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
72 lines
2.2 KiB
Bash
Executable File
72 lines
2.2 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0-or-later
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# Copyright (c) 2021 Oracle. All Rights Reserved.
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#
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# FS QA Test No. 145
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#
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# Regression test for failing to undo delalloc quota reservations when changing
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# project id but we fail some other part of FSSETXATTR validation. If we fail
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# the test, we trip debugging assertions in dmesg. This is a regression test
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# for commit 1aecf3734a95 ("xfs: fix chown leaking delalloc quota blocks when
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# fssetxattr fails").
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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 $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/quota
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# real QA test starts here
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_supported_fs xfs
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_require_command "$FILEFRAG_PROG" filefrag
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_require_test_program "chprojid_fail"
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_require_quota
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_require_scratch
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rm -f $seqres.full
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echo "Format filesystem" | tee -a $seqres.full
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_scratch_mkfs > $seqres.full
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_qmount_option 'prjquota'
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_qmount
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_require_prjquota $SCRATCH_DEV
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# Make sure that a regular buffered write produces delalloc reservations.
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$XFS_IO_PROG -f -c 'pwrite 0 64k' $SCRATCH_MNT/testy &> /dev/null
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$FILEFRAG_PROG -v $SCRATCH_MNT/testy 2>&1 | grep -q delalloc || \
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_notrun "test requires delayed allocation writes"
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rm -f $SCRATCH_MNT/testy
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echo "Run test program"
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$XFS_QUOTA_PROG -f -x -c 'report -ap' $SCRATCH_MNT >> $seqres.full
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$here/src/chprojid_fail $SCRATCH_MNT/blah
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# The regression we're testing for is an accounting bug involving delalloc
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# reservations. FSSETXATTR does not itself cause dirty data writeback, so we
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# assume that if the file still has delalloc extents, then it must have had
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# them when chprojid_fail was running, and therefore the test was set up
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# correctly. There's a slight chance that background writeback can sneak in
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# and flush the file, but this should be a small enough gap.
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$FILEFRAG_PROG -v $SCRATCH_MNT/blah 2>&1 | grep -q delalloc || \
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echo "file didn't get delalloc extents, test invalid?"
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# Make a note of current quota status for diagnostic purposes
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$XFS_QUOTA_PROG -f -x -c 'report -ap' $SCRATCH_MNT >> $seqres.full
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# success, all done
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status=0
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exit
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