mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Chandan Rajendra
743bd85bfe
This commit replaces the hard coded bsize variable with the block size obtained from 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>
86 lines
2.1 KiB
Bash
Executable File
86 lines
2.1 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2009 Eric Sandeen. All Rights Reserved.
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#
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# FS QA Test No. generic/018
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#
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# Basic defragmentation sanity tests
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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/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/defrag
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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# We require scratch so that we'll have free contiguous space
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_require_scratch
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_scratch_mkfs >/dev/null 2>&1
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_scratch_mount
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_require_defrag
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fragfile=$SCRATCH_MNT/fragfile.$$
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rm -f $fragfile
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# Craft some fragmented files, defrag them, check the result.
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bsize=$(_get_file_block_size $SCRATCH_MNT)
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echo "zero-length file:" | tee -a $seqres.full
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touch $fragfile
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_defrag --before 0 --after 0 $fragfile
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echo "Sparse file (no blocks):" | tee -a $seqres.full
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$XFS_IO_PROG -f -c "truncate 1m" $fragfile
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_defrag --before 0 --after 0 $fragfile
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echo "Contiguous file:" | tee -a $seqres.full
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$XFS_IO_PROG -f -c "pwrite -b $((4 * bsize)) 0 $((4 * bsize))" $fragfile \
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> /dev/null
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_defrag --before 1 --after 1 $fragfile
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echo "Write backwards sync, but contiguous - should defrag to 1 extent" | tee -a $seqres.full
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for i in `seq 9 -1 0`; do
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$XFS_IO_PROG -fs -c "pwrite -b $bsize $((i * bsize)) $bsize" $fragfile \
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> /dev/null
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done
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# Accept fewer fragments than we might expect; we don't have perfect control.
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_defrag --max_before 10 --min_before 5 --after 1 $fragfile
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echo "Write backwards sync leaving holes - defrag should do nothing" | tee -a $seqres.full
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for i in `seq 31 -2 0`; do
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$XFS_IO_PROG -fs -c "pwrite -b $bsize $((i * bsize)) $bsize" $fragfile \
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> /dev/null
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done
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_defrag --before 16 --after 16 $fragfile
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echo "Write forwards sync leaving holes - defrag should do nothing" | tee -a $seqres.full
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for i in `seq 0 2 31`; do
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$XFS_IO_PROG -fs -c "pwrite -b $bsize $((i * bsize)) $bsize" $fragfile \
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> /dev/null
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done
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_defrag --before 16 --after 16 $fragfile
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rm -f $seqres.full
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status=0
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exit
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