mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
b951bb5cef
The _get_file_block_size helper was added so that tests could find out the size of a fundamental unit of allocation for a given file, which is necessary for certain fallocate and clonerange tests. On certain filesystem configurations (ocfs2 with clusters, xfs with a large rt extent size), this is /not/ the same as the filesystem block size, and these tests will fail. Fix them to use the correct helper. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
96 lines
2.7 KiB
Bash
Executable File
96 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) 2016, Oracle and/or its affiliates. All Rights Reserved.
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#
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# FS QA Test No. 328
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#
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# See how well xfs_fsr handles "defragging" a file with a hojillion extents.
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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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here=`pwd`
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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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cd /
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rm -rf "$tmp".*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/attr
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. ./common/reflink
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# real QA test starts here
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_supported_fs xfs
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_require_scratch_reflink
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_require_cp_reflink
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_require_test_program "punch-alternating"
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_require_xfs_io_command "falloc" # used in FSR
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_require_command "$XFS_FSR_PROG" "xfs_fsr"
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rm -f "$seqres.full"
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echo "Format and mount"
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_scratch_mkfs > "$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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# Setup for 16000 blocks, but we'll accept stress testing down to
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# 2^10 blocks... that should be plenty for anyone.
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fnr=$((12 + LOAD_FACTOR))
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free_blocks=$(stat -f -c '%a' "$testdir")
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blksz=$(_get_file_block_size $testdir)
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space_avail=$((free_blocks * blksz))
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calc_space()
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{
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blocks_needed=$(( 2 ** (fnr + 1) ))
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space_needed=$((blocks_needed * blksz * 5 / 4))
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}
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calc_space
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while test $space_needed -gt $space_avail; do
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fnr=$((fnr - 1))
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calc_space
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done
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test $fnr -lt 10 && _notrun "Insufficient space for stress test; would only create $blocks_needed extents."
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bytes=$((blocks_needed * blksz))
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echo "Create a many-block file"
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echo "creating $blocks_needed blocks..." >> "$seqres.full"
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_pwrite_byte 0x62 0 $blksz $testdir/file0 >> $seqres.full
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$XFS_IO_PROG -f -c "pwrite -S 0x61 -b 4194304 0 $bytes" "$testdir/file1" >> "$seqres.full"
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echo "punching..." >> "$seqres.full"
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"$here/src/punch-alternating" "$testdir/file1" >> "$seqres.full"
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seq 0 2 $((2 ** (fnr + 1) )) | while read lblk; do
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_reflink_range $testdir/file0 0 $testdir/file1 $((lblk * blksz)) $blksz >> $seqres.full
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done
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echo "...done" >> "$seqres.full"
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_scratch_cycle_mount
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echo "Reflink the big file"
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echo "reflinking $((blocks_needed / 2)) blocks, $((bytes / 2)) bytes" >> "$seqres.full"
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_reflink_range "$testdir/file1" 0 "$testdir/file2" 0 $bytes >> "$seqres.full"
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echo "Defrag the big file"
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old_nextents=$(_count_extents $testdir/file1)
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$XFS_FSR_PROG -v -d $testdir/file1 >> $seqres.full
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new_nextents=$(_count_extents $testdir/file1)
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echo "Check extent count"
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$XFS_IO_PROG -c 'stat -v' $testdir/file1 >> $seqres.full
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$XFS_IO_PROG -c 'stat -v' $testdir/file2 >> $seqres.full
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echo "extents: $old_nextents -> $new_nextents" >> $seqres.full
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test $old_nextents -gt $new_nextents || echo "FAIL: $old_nextents -> $new_nextents"
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# success, all done
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status=0
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exit
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