mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Liu Bo
d943515bbc
This is to test whether snapshot-aware defrag can work well on partial extents. Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: Rich Johnston <rjohnston@sgi.com>
94 lines
2.5 KiB
Bash
Executable File
94 lines
2.5 KiB
Bash
Executable File
#! /bin/bash
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# BTRFS QA Test No. 010
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#
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# Test if snapshot-aware defrag can work well on partial extents, ie.
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# extent_offset is not zero.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2013 Oracle. 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 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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# real QA test starts here
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# Modify as appropriate.
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_supported_fs btrfs
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_supported_os Linux
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_require_scratch
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_require_command "/usr/sbin/filefrag"
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rm -f $seqres.full
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_scratch_mkfs > /dev/null 2>&1
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_scratch_mount
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subvol=$SCRATCH_MNT/subvol
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$BTRFS_UTIL_PROG subvolume create $subvol >> $seqres.full
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for i in `seq 5 -1 1`
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do
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dd if=/dev/zero of=$subvol/foobar bs=6k count=1 seek=$i conv=notrunc oflag=dsync 2>> $seqres.full
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done
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sync
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for i in `seq 2 -1 1`
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do
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$BTRFS_UTIL_PROG subvolume snapshot $subvol $SCRATCH_MNT/snap-$i >> $seqres.full
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done
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$BTRFS_UTIL_PROG filesystem defrag $subvol/foobar && sync
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num_extent_orig=`filefrag $subvol/foobar | awk -F ' ' '{print $2}'`
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num_extent_snap1=`filefrag $SCRATCH_MNT/snap-1/foobar | awk -F ' ' '{print $2}'`
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num_extent_snap2=`filefrag $SCRATCH_MNT/snap-2/foobar | awk -F ' ' '{print $2}'`
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echo "$num_extent_orig $num_extent_snap1 $num_extent_snap2" >> $seqres.full
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# if error
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if [ "x$num_extent_snap1" != "x$num_extent_orig" -o "x$num_extent_snap2" != "x$num_extent_orig" ]; then
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echo "number of extents mis-match!"
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exit
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fi
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# optional stuff if your test has verbose output to help resolve problems
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#echo
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#echo "If failure, check $seqres.full (this) and $seqres.full.ok (reference)"
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# success, all done
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echo "done"
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status=0
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exit
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