mirror of
https://github.com/linux-apfs/apfstests.git
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Dmitry Monakhov
2f87a77e0f
Sometimes it is not easy to know number of expected extents in advance. In that case it is reasonable to provide sane MIN and MAX values. Also helper will check that number of extents before defragmentaion is not greather than after. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
94 lines
2.7 KiB
Bash
Executable File
94 lines
2.7 KiB
Bash
Executable File
#! /bin/bash
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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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#-----------------------------------------------------------------------
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# Copyright (c) 2009 Eric Sandeen. 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/$$
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status=1 # failure is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/defrag
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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# We require scratch so that we'll have free contiguous space
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_require_scratch
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_scratch_mkfs >/dev/null 2>&1
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_scratch_mount
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_require_defrag
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fragfile=$SCRATCH_MNT/fragfile.$$
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rm -f $fragfile
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# Craft some fragmented files, defrag them, check the result.
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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 $seqres.full
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dd if=/dev/zero of=$fragfile bs=4k count=4 &>/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 $seqres.full
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for I in `seq 9 -1 0`; do
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dd if=/dev/zero of=$fragfile bs=4k count=1 conv=notrunc seek=$I oflag=sync &>/dev/null
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done
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_defrag --before 10 --after 1 $fragfile
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echo "Write backwards sync leaving holes - defrag should do nothing" | tee -a $seqres.full
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for I in `seq 31 -2 0`; do
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dd if=/dev/zero of=$fragfile bs=4k count=1 conv=notrunc seek=$I oflag=sync &>/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 $seqres.full
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for I in `seq 0 2 31`; do
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dd if=/dev/zero of=$fragfile bs=4k count=1 conv=notrunc seek=$I oflag=sync &>/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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