mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Chandan Rajendra
b206b62abc
This commit changes the test to work on file offsets that are aligned with the block size of the underlying filesystem. Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com> Tested-by: Zorro Lang <zlang@redhat.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
93 lines
2.7 KiB
Bash
Executable File
93 lines
2.7 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (C) 2015 SUSE Linux Products GmbH. All Rights Reserved.
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#
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# FSQA Test No. 177
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#
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# Test that a file fsync works after punching a hole for the same file range
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# multiple times and that after log/journal replay the file's content is
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# correct.
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#
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# This test is motivated by a bug found in btrfs.
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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/punch
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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
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_require_xfs_io_command "fpunch"
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_require_xfs_io_command "fiemap"
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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 $SCRATCH_DEV
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_init_flakey
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_mount_flakey
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BLOCK_SIZE=$(_get_file_block_size $SCRATCH_MNT)
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# Create out test file with some data and then fsync it.
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# We do the fsync only to make sure the last fsync we do in this test triggers
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# the fast code path of btrfs' fsync implementation, a condition necessary to
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# trigger the bug btrfs had.
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$XFS_IO_PROG -f -c "pwrite -S 0xaa 0K $(($BLOCK_SIZE * 32))" \
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-c "fsync" \
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$SCRATCH_MNT/foobar | _filter_xfs_io_blocks_modified
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# Now punch a hole against the range [96K, 128K[.
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$XFS_IO_PROG -c "fpunch $(($BLOCK_SIZE * 24)) $(($BLOCK_SIZE * 8))" $SCRATCH_MNT/foobar
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# Punch another hole against a range that overlaps the previous range and ends
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# beyond eof.
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$XFS_IO_PROG -c "fpunch $(($BLOCK_SIZE * 16)) $(($BLOCK_SIZE * 32))" $SCRATCH_MNT/foobar
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# Punch another hole against a range that overlaps the first range ([96K, 128K[)
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# and ends at eof.
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$XFS_IO_PROG -c "fpunch $(($BLOCK_SIZE * 8)) $(($BLOCK_SIZE * 24))" $SCRATCH_MNT/foobar
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# Fsync our file. We want to verify that, after a power failure and mounting the
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# filesystem again, the file content reflects all the hole punch operations.
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$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/foobar
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echo "File digest before power failure:"
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od -t x1 $SCRATCH_MNT/foobar | _filter_od
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echo "Fiemap before power failure:"
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$XFS_IO_PROG -c "fiemap -v" $SCRATCH_MNT/foobar | _filter_fiemap $BLOCK_SIZE
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_flakey_drop_and_remount
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echo "File digest after log replay:"
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# Must match the same digest we got before the power failure.
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od -t x1 $SCRATCH_MNT/foobar | _filter_od
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echo "Fiemap after log replay:"
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# Must match the same extent listing we got before the power failure.
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$XFS_IO_PROG -c "fiemap -v" $SCRATCH_MNT/foobar | _filter_fiemap $BLOCK_SIZE
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_unmount_flakey
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status=0
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exit
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