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>
78 lines
2.2 KiB
Bash
Executable File
78 lines
2.2 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
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#
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# FS QA Test No. 211
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#
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# Test fragmentation in a big file after a lot of random CoW:
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# - Create two reflinked files. Set extsz hint on second file.
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# - Directio write to random offsets to scatter CoW reservations.
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# - Rewrite the whole file to use up reservations.
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# - Check the number of extents.
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#
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. ./common/preamble
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_begin_fstest clone_stress
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# Import common functions.
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. ./common/filter
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. ./common/reflink
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# real QA test starts here
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_supported_fs xfs
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_require_scratch_reflink
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_require_cp_reflink
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_require_xfs_io_command "fiemap"
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_require_xfs_io_command "cowextsize"
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_require_odirect
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echo "Format and mount"
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_scratch_mkfs > $seqres.full 2>&1
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_scratch_mount >> $seqres.full 2>&1
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testdir=$SCRATCH_MNT/test-$seq
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mkdir $testdir
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blksz=65536
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nr=50000
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filesize=$((blksz * nr))
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bufnr=16
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bufsize=$((blksz * bufnr))
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_require_fs_space $SCRATCH_MNT $((filesize / 1024 * 2 * 5 / 4))
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real_blksz=$(_get_block_size $testdir)
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internal_blks=$((filesize / real_blksz))
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echo "Create the original files"
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$XFS_IO_PROG -f -c "pwrite -S 0x61 -b $bufsize 0 $((filesize + 1))" $testdir/file1 >> $seqres.full
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$XFS_IO_PROG -f -c "cowextsize $bufsize" $testdir/file2
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_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
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_scratch_cycle_mount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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md5sum $testdir/file2 | _filter_scratch
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echo "CoW and unmount"
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$XFS_IO_PROG -f -c "cowextsize" $testdir/file2 >> $seqres.full
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$XFS_IO_PROG -d -f -c "pwrite -R -S 0x63 -b $real_blksz 0 $((filesize + 1))" $testdir/file2 >> $seqres.full
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$XFS_IO_PROG -d -f -c "pwrite -S 0x63 -b 8388608 0 $filesize" $testdir/file2 >> $seqres.full
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_scratch_cycle_mount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_scratch
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md5sum $testdir/file2 | _filter_scratch
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echo "Check extent counts"
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old_extents=$(_count_extents $testdir/file1)
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new_extents=$(_count_extents $testdir/file2)
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echo "old extents: $old_extents" >> $seqres.full
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echo "new extents: $new_extents" >> $seqres.full
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echo "maximum extents: $internal_blks" >> $seqres.full
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test $new_extents -lt $((internal_blks / 20)) || test $new_extents -lt 15 \
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|| echo "file2 badly fragmented"
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# success, all done
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status=0
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exit
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