mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
7e98d41a6e
Refactor every test in the entire test suite to use the new boilerplate functions. This also migrates all the test group information into the test files. This patch has been autogenerated via the command: ./tools/convert-group btrfs ceph cifs ext4 f2fs generic nfs ocfs2 overlay perf shared udf xfs Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Allison Henderson <allison.henderson@oracle.com> Reviewed-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
90 lines
3.1 KiB
Bash
Executable File
90 lines
3.1 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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# FS QA Test No. btrfs/093
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#
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# Test btrfs file range cloning with the same file as a source and destination.
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#
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# This tests a specific scenario where the extent layout of the file confused
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# the clone ioctl implementation making it return -EEXIST to userspace.
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# This issue was fixed by the following linux kernel patch:
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#
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# Btrfs: fix range cloning when same inode used as source and destination
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#
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. ./common/preamble
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_begin_fstest auto quick clone
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# Import common functions.
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. ./common/filter
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# real QA test starts here
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_supported_fs btrfs
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_require_scratch
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_require_cloner
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# Create a file with an extent layout that confused the btrfs clone ioctl
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# implementation. The first extent item that is cloned by the second call
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# to the cloner program will have only a trailing part of it referenced by
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# a new extent item, since the source offset starts in the middle of that
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# extent. This confused the clone ioctl because after inserting this new
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# extent item it would immediately after process it again thinking it
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# corresponded to an extent that existed before - this made it attempt to
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# insert a duplicated extent item pointing to the same extent again, which
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# made it return an -EEXIST error to userspace and turn the filesystem to
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# readonly mode (since the current transaction got aborted).
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test_clone()
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{
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local bs=$1
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$XFS_IO_PROG -f -c "pwrite -S 0xaa $((2 * $bs)) $((2 * $bs))" \
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$SCRATCH_MNT/foo | _filter_xfs_io
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$CLONER_PROG -s $((3 * $bs)) -d $((267 * $bs)) -l 0 $SCRATCH_MNT/foo \
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$SCRATCH_MNT/foo
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$CLONER_PROG -s $((217 * $bs)) -d $((95 * $bs)) -l 0 $SCRATCH_MNT/foo \
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$SCRATCH_MNT/foo
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echo "File digest after clone operations using same file as source and destination"
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md5sum $SCRATCH_MNT/foo | _filter_scratch
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# Test cloning using different source and destination files for the
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# same exact data - it must produce the exact same result as the case
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# before.
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$XFS_IO_PROG -f -c "pwrite -S 0xaa $((2 * $bs)) $((2 * $bs))" \
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$SCRATCH_MNT/a | _filter_xfs_io
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cp $SCRATCH_MNT/a $SCRATCH_MNT/b
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$CLONER_PROG -s $((3 * $bs)) -d $((267 * $bs)) -l 0 $SCRATCH_MNT/a \
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$SCRATCH_MNT/b
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cp $SCRATCH_MNT/b $SCRATCH_MNT/foo2
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$CLONER_PROG -s $((217 * $bs)) -d $((95 * $bs)) -l 0 $SCRATCH_MNT/b \
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$SCRATCH_MNT/foo2
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echo "File digest after clone operations using different files as source and destination"
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md5sum $SCRATCH_MNT/foo2 | _filter_scratch
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}
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# Make sure the test passes offsets and lengths to the btrfs clone ioctl that
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# are multiples of the fs block size. Currently the block size on btrfs must
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# be a multiple of the page size, so use a 64Kb fs block size in order to be
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# able to test on every platform supported by linux.
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bs=$((64 * 1024))
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echo "Testing without the no-holes feature"
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_scratch_mkfs "-O ^no-holes -n $bs" >>$seqres.full 2>&1
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_scratch_mount
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test_clone $bs
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_check_scratch_fs
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echo -e "\nTesting with the no-holes feature"
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_scratch_unmount
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_scratch_mkfs "-O no-holes -n $bs" >>$seqres.full 2>&1
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_scratch_mount
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test_clone $bs
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status=0
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exit
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