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https://github.com/linux-apfs/apfstests.git
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Darrick J. Wong
a860a167d8
fstests only supports Linux, so get rid of this unnecessary predicate. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
77 lines
2.1 KiB
Bash
Executable File
77 lines
2.1 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2019 SUSE Linux Products GmbH. All Rights Reserved.
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#
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# FSQA Test No. 588
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#
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# Test that if we clone part of an extent from a file to itself at different
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# offset, fsync it, rewrite (COW) part of the extent from the former offset,
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# fsync it again, power fail and then mount the filesystem, we are able to
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# read the whole file and it has the correct data.
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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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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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_cleanup_flakey
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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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. ./common/reflink
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. ./common/dmflakey
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# real QA test starts here
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_supported_fs generic
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_require_scratch_reflink
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_require_dm_target flakey
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rm -f $seqres.full
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_scratch_mkfs >>$seqres.full 2>&1
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_require_metadata_journaling $SCRATCH_DEV
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_init_flakey
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_mount_flakey
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# Create our test file with two 256Kb extents, one at file offset 0 and the
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# other at file offset 256Kb.
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$XFS_IO_PROG -f -c "pwrite -S 0xa3 0 256K" \
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-c "fsync" \
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-c "pwrite -S 0xc7 256K 256K" \
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$SCRATCH_MNT/foobar | _filter_xfs_io
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# Now clone the second 64Kb of data from the second extent into file offset 0.
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# After this we get that extent partially shared. Also fsync the file.
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$XFS_IO_PROG -c "reflink $SCRATCH_MNT/foobar 320K 0K 64K" \
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-c "fsync" \
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$SCRATCH_MNT/foobar | _filter_xfs_io
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# Now COW the first 64Kb of data for that second extent. After this we no longer
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# have the extent fully referenced - its second 64Kb of data are referenced at
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# file offset 0 and its last 192Kb of data are referenced at file offset 320Kb.
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# Fsync the file to make sure everything is durably persisted.
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$XFS_IO_PROG -c "pwrite -S 0xe5 256K 64K" \
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-c "fsync" \
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$SCRATCH_MNT/foobar | _filter_xfs_io
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echo "File digest before power failure:"
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_md5_checksum $SCRATCH_MNT/foobar
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# Simulate a power failure and then check no data loss or corruption happened.
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_flakey_drop_and_remount
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echo "File digest after mount:"
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_md5_checksum $SCRATCH_MNT/foobar
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_unmount_flakey
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status=0
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exit
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