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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Christoph Hellwig
09e94f84d9
The always_cow mode can't usefull preallocate space gіven that it always has to write out of place, and thus will reject falloc or ioctl calls to preallocate space in a file. Add explicit checks for preallocation support in various XFS-specific tests to support this. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Eryu Guan <guaneryu@gmail.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
80 lines
1.8 KiB
Bash
Executable File
80 lines
1.8 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2016 Oracle, Inc. All Rights Reserved.
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#
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# FS QA Test No. 280
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#
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# Check that GETBMAPX accurately report shared 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 7 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/reflink
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# real QA test starts here
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_supported_os Linux
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_supported_fs xfs
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_require_scratch_reflink
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_require_xfs_io_command "bmap"
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_require_xfs_io_command "falloc"
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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 $testdir
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blocks=5
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blksz=65536
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sz=$((blocks * blksz))
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echo "Create the original files"
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$XFS_IO_PROG -f -c "falloc 0 $sz" $testdir/file1 >> $seqres.full
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_pwrite_byte 0x61 0 $sz $testdir/file1 >> $seqres.full
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_scratch_cycle_mount
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bmap() {
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$XFS_IO_PROG -c 'bmap -v' $1 | grep '^[[:space:]]*[0-9]*:'
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}
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echo "file1 extents and holes"
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bmap $testdir/file1 | grep -v -c hole
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bmap $testdir/file1 | grep -c hole
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_reflink_range $testdir/file1 $blksz $testdir/file2 $((blksz * 3)) $blksz >> $seqres.full
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_reflink_range $testdir/file1 $((blksz * 3)) $testdir/file2 $blksz $blksz >> $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 "file1 extents and holes"
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bmap $testdir/file1 | grep -v -c hole
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bmap $testdir/file1 | grep -c hole
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echo "file2 extents and holes"
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bmap $testdir/file2 | grep -v -c hole
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bmap $testdir/file2 | grep -c hole
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echo "file1 shared extents"
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bmap $testdir/file1 | grep -c '1.....$'
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# success, all done
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status=0
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exit
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