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https://github.com/linux-apfs/apfstests.git
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Dave Chinner
1ff4192932
Fully scripted conversion, see script in initial SPDX license commit message. Signed-off-by: Dave Chinner <dchinner@redhat.com>
132 lines
4.1 KiB
Bash
Executable File
132 lines
4.1 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2014 Filipe Manana. All Rights Reserved.
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#
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# FS QA Test No. btrfs/056
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#
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# Regression test for btrfs ioctl clone operation + fsync + log recovery.
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# The issue was that doing an fsync after cloning into a file didn't gave any
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# persistence guarantees as it should. What happened was that the in memory
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# metadata (extent maps) weren't updated, which made the fsync code not able
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# to detect that file data has been changed.
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#
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# This issue is fixed by the following linux kernel btrfs patch:
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#
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# Btrfs: make fsync work after cloning into a file
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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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rm -fr $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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# real QA test starts here
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_supported_fs btrfs
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_supported_os Linux
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_require_scratch
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_require_cloner
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_require_btrfs_fs_feature "no_holes"
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_require_btrfs_mkfs_feature "no-holes"
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_require_dm_target flakey
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rm -f $seqres.full
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test_btrfs_clone_fsync_log_recover()
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{
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_scratch_mkfs "$1" >/dev/null 2>&1
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_init_flakey
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SAVE_MOUNT_OPTIONS="$MOUNT_OPTIONS"
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MOUNT_OPTIONS="$MOUNT_OPTIONS $2"
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_mount_flakey
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BLOCK_SIZE=$(_get_block_size $SCRATCH_MNT)
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EXTENT_SIZE=$((2 * $BLOCK_SIZE))
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# Create a file with 4 extents and 1 hole, all with a size of
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# 2 blocks each.
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# The hole is in the block range [4, 5].
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$XFS_IO_PROG -s -f -c "pwrite -S 0x01 -b $EXTENT_SIZE 0 $EXTENT_SIZE" \
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-c "pwrite -S 0x02 -b $EXTENT_SIZE $((2 * $BLOCK_SIZE)) $EXTENT_SIZE" \
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-c "pwrite -S 0x04 -b $EXTENT_SIZE $((6 * $BLOCK_SIZE)) $EXTENT_SIZE" \
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-c "pwrite -S 0x05 -b $EXTENT_SIZE $((8 * $BLOCK_SIZE)) $EXTENT_SIZE" \
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$SCRATCH_MNT/foo | _filter_xfs_io_blocks_modified
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# Clone destination file, 1 extent of 24 blocks.
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$XFS_IO_PROG -f -c "pwrite -S 0xff -b $((24 * $BLOCK_SIZE)) 0 $((24 * $BLOCK_SIZE))" \
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-c "fsync" $SCRATCH_MNT/bar | _filter_xfs_io_blocks_modified
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# Clone second half of the 2nd extent, the 2 block hole, the 3rd extent
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# and the first half of the 4th extent into file bar.
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$CLONER_PROG -s $((3 * $BLOCK_SIZE)) -d 0 -l $((6 * $BLOCK_SIZE)) \
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$SCRATCH_MNT/foo $SCRATCH_MNT/bar
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$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/bar
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# Test small files too consisting of 1 inline extent
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EXTENT_SIZE=$(($BLOCK_SIZE - 48))
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$XFS_IO_PROG -f -c "pwrite -S 0x00 -b $EXTENT_SIZE 0 $EXTENT_SIZE" -c "fsync" \
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$SCRATCH_MNT/foo2 | _filter_xfs_io_blocks_modified
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EXTENT_SIZE=$(($BLOCK_SIZE - 1048))
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$XFS_IO_PROG -f -c "pwrite -S 0xcc -b $EXTENT_SIZE 0 $EXTENT_SIZE" -c "fsync" \
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$SCRATCH_MNT/bar2 | _filter_xfs_io_blocks_modified
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# Clone the entire foo2 file into bar2, overwriting all data in bar2
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# and increasing its size.
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EXTENT_SIZE=$(($BLOCK_SIZE - 48))
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$CLONER_PROG -s 0 -d 0 -l $EXTENT_SIZE $SCRATCH_MNT/foo2 $SCRATCH_MNT/bar2
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$XFS_IO_PROG -c "fsync" $SCRATCH_MNT/bar2
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_flakey_drop_and_remount yes
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# Verify the cloned range was persisted by fsync and the log recovery
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# code did its work well.
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echo "Verifying file bar content"
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od -t x1 $SCRATCH_MNT/bar | _filter_od
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echo "Verifying file bar2 content"
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od -t x1 $SCRATCH_MNT/bar2 | _filter_od
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_unmount_flakey
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# Verify that there are no consistency errors.
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_check_scratch_fs $FLAKEY_DEV
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_cleanup_flakey
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MOUNT_OPTIONS="$SAVE_MOUNT_OPTIONS"
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}
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# Regardless of the NO_HOLES feature being enabled or not, the test results
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# should be exactly the same for both cases.
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echo "Testing without the NO_HOLES feature"
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# As of btrfs-progs 3.14.x, the no-holes feature isn't enabled by default.
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# But explicitly disable it at mkfs time as it might be enabled by default
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# in future versions.
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test_btrfs_clone_fsync_log_recover "-O ^no-holes"
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echo "Testing without the NO_HOLES feature and compression (lzo)"
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test_btrfs_clone_fsync_log_recover "-O ^no-holes" "-o compress-force=lzo"
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echo "Testing with the NO_HOLES feature enabled"
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test_btrfs_clone_fsync_log_recover "-O no-holes"
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echo "Testing with the NO_HOLES feature enabled and compression (lzo)"
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test_btrfs_clone_fsync_log_recover "-O no-holes" "-o compress-force=lzo"
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status=0
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exit
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