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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Dave Chinner
cac7b427a8
This test exposed a problem with XFS where it failed to write back a partial page correctly during a fcollapse operation. This left a stray dirty buffer on the page, and hence invalidation of the page then failed of the fcollapse returned an EBUSY error. Make this a generic test so that we can ensure that all filesystems handle the case correctly. Test case originally worked out and written by Brian Foster. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
74 lines
1.8 KiB
Bash
74 lines
1.8 KiB
Bash
#! /bin/bash
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# FS QA Test No. generic/031
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#
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# Test non-aligned writes against fcollapse to ensure that partial pages are
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# correctly written and aren't left behind causing invalidation or data
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# corruption issues.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2014 Red Hat, 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 $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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# Modify as appropriate.
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_supported_fs generic
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_supported_os IRIX Linux
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_require_scratch
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_require_xfs_io_command "fcollapse"
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testfile=$SCRATCH_MNT/testfile
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_scratch_mkfs > /dev/null 2>&1
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_scratch_mount
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$XFS_IO_PROG -f \
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-c "pwrite 185332 55756" \
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-c "fcollapse 28672 40960" \
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-c "pwrite 133228 63394" \
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-c "fcollapse 0 4096" \
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$testfile | _filter_xfs_io
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echo "==== Pre-Remount ==="
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hexdump -C $testfile
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_scratch_remount
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echo "==== Post-Remount =="
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hexdump -C $testfile
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status=0
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exit
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