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Qu Wenruo
083ff5827b
For fs support reflink, some of them (OK, btrfs again) doesn't split
SHARED flag for extent fiemap reporting.
For example:
0 4K 8K
/ File1: Extent 0 \
/ \
|<- On disk Extent-->|
| /
| File2 /
Extent: 0
Fs supports explicit SHARED extent reporting should report fiemap like:
File1: 2 extents
Extent 0-4K: SHARED
Extent 4-8K:
File2: 1 extents
Extent 0-4K: SHARED
Fs doesn't support explicit reporting will report fiemap like:
File1: 1 extent
Extent 0-8K: SHARED
File2: 1 extent
Extent 0-4K: SHARED
Test case like generic/372 require explicit reporting will cause
false alert on btrfs.
Add such runtime check for that requirememt.
Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Reviewed-by: Eryu Guan <eguan@redhat.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
92 lines
2.4 KiB
Bash
Executable File
92 lines
2.4 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 372
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#
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# Check that bmap/fiemap accurately report shared extents.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2016 Oracle, Inc. All Rights Reserved.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation.
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#
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# This program is distributed in the hope that it would be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write the Free Software Foundation,
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# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#-----------------------------------------------------------------------
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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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wait
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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 generic
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_require_scratch_reflink
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_require_fiemap
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_require_scratch_explicit_shared_extents
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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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echo "file1 extents and holes"
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_count_extents $testdir/file1
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_count_holes $testdir/file1
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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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_count_extents $testdir/file1
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_count_holes $testdir/file1
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echo "file2 extents and holes"
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_count_extents $testdir/file2
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_count_holes $testdir/file2
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echo "file1 shared extents"
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$XFS_IO_PROG -c 'fiemap -v' $testdir/file1 | awk '{print $5}' | grep -c '0x.*[2367aAbBfF]...$'
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# success, all done
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status=0
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exit
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