mirror of
https://github.com/linux-apfs/apfstests.git
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Dave Chinner
cf89aed924
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
108 lines
2.8 KiB
Bash
Executable File
108 lines
2.8 KiB
Bash
Executable File
#! /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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# FSQA Test No. 483
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#
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# Test that fsync operations preserve extents allocated with fallocate(2) that
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# are placed beyond a file's size.
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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/dmflakey
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. ./common/punch
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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
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_require_dm_target flakey
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_require_xfs_io_command "falloc" "-k"
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_require_xfs_io_command "fiemap"
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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 $SCRATCH_DEV
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_init_flakey
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_mount_flakey
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# Create our test files.
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$XFS_IO_PROG -f -c "pwrite -S 0xea 0 256K" $SCRATCH_MNT/foo >/dev/null
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# Create a file with many extents. We later want to shrink truncate it and
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# add a prealloc extent beyond its new size.
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for ((i = 1; i <= 500; i++)); do
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offset=$(((i - 1) * 4 * 1024))
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$XFS_IO_PROG -f -s -c "pwrite -S 0xcf $offset 4K" \
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$SCRATCH_MNT/bar >/dev/null
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done
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# A file which already has a prealloc extent beyond its size.
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# The fsync done on it is motivated by differences in the btrfs implementation
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# of fsync (first fsync has different logic from subsequent fsyncs).
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$XFS_IO_PROG -f -c "pwrite -S 0xf1 0 256K" \
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-c "falloc -k 256K 768K" \
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-c "fsync" \
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$SCRATCH_MNT/baz >/dev/null
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# Make sure everything done so far is durably persisted.
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sync
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# Allocate an extent beyond the size of the first test file and fsync it.
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$XFS_IO_PROG -c "falloc -k 256K 1M"\
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-c "fsync" \
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$SCRATCH_MNT/foo
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# Do a shrinking truncate of our test file, add a prealloc extent to it after
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# its new size and fsync it.
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$XFS_IO_PROG -c "truncate 256K" \
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-c "falloc -k 256K 1M"\
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-c "fsync" \
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$SCRATCH_MNT/bar
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# Allocate another extent beyond the size of file baz.
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$XFS_IO_PROG -c "falloc -k 1M 2M"\
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-c "fsync" \
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$SCRATCH_MNT/baz
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# Simulate a power failure and mount the filesystem to check that the extents
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# previously allocated were not lost and the file sizes are correct.
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_flakey_drop_and_remount
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echo "File foo fiemap:"
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$XFS_IO_PROG -c "fiemap -v" $SCRATCH_MNT/foo | _filter_hole_fiemap
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echo "File foo size:"
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stat --format %s $SCRATCH_MNT/foo
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echo "File bar fiemap:"
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$XFS_IO_PROG -c "fiemap -v" $SCRATCH_MNT/bar | _filter_hole_fiemap
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echo "File bar size:"
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stat --format %s $SCRATCH_MNT/bar
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echo "File baz fiemap:"
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$XFS_IO_PROG -c "fiemap -v" $SCRATCH_MNT/baz | _filter_hole_fiemap
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echo "File baz size:"
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stat --format %s $SCRATCH_MNT/baz
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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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