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https://github.com/linux-apfs/apfstests.git
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71 lines
1.8 KiB
Bash
71 lines
1.8 KiB
Bash
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#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2018 SUSE Linux Products GmbH. All Rights Reserved.
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#
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# FS QA Test No. 501
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#
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# Test that if we do a buffered write to a file, fsync it, clone a range from
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# another file into our file that overlaps the previously written range, fsync
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# the file again and then power fail, after we mount again the filesystem, no
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# file data was lost or corrupted.
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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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_supported_os Linux
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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 $SCRATCH_DEV
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_init_flakey
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_mount_flakey
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$XFS_IO_PROG -f -c "pwrite -S 0x18 9000K 6908K" $SCRATCH_MNT/foo >>$seqres.full
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$XFS_IO_PROG -f -c "pwrite -S 0x20 2572K 156K" $SCRATCH_MNT/bar >>$seqres.full
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# We clone from file foo into a range of file bar that overlaps the existing
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# extent at file bar. The destination offset of the reflink operation matches
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# the eof position of file bar minus 4Kb.
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$XFS_IO_PROG -c "fsync" \
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-c "reflink ${SCRATCH_MNT}/foo 0 2724K 15908K" \
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-c "fsync" \
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$SCRATCH_MNT/bar >>$seqres.full
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echo "File bar digest before power failure:"
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md5sum $SCRATCH_MNT/bar | _filter_scratch
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# Simulate a power failure and mount the filesystem to check that no file data
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# was lost or corrupted.
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_flakey_drop_and_remount
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echo "File bar digest after power failure:"
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md5sum $SCRATCH_MNT/bar | _filter_scratch
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_unmount_flakey
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_cleanup_flakey
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status=0
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exit
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