mirror of
https://github.com/linux-apfs/apfstests.git
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Darrick J. Wong
2616587012
Fix style problems such as unnecessary use of quotes, add helper variables to reduce visual clutter, and other minor fixes to make the first batch of tests more closely resemble the second round tests. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
105 lines
3.0 KiB
Bash
Executable File
105 lines
3.0 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 152
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#
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# Ensure that punching all copies of a file reflinked N times releases the blocks
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# - Record fs block usage (0)
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# - Create a file and some reflink copies
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# - Record fs block usage (1)
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# - Punch some blocks of the copies
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# - Record fs block usage (2)
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# - Punch all blocks of the copies
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# - Compare fs block usage to (2), (1), and (0)
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2015, Oracle and/or its affiliates. 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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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 -rf $tmp.* $testdir
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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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_require_test_reflink
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_require_cp_reflink
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_require_xfs_io_command "fpunch"
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rm -f $seqres.full
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testdir=$TEST_DIR/test-$seq
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rm -rf $testdir
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mkdir $testdir
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echo "Create the original file blocks"
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blksz="$(stat -f $testdir -c '%S')"
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blks=2000
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margin='15%'
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sz=$((blksz * blks))
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free_blocks0=$(stat -f $testdir -c '%f')
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nr=4
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filesize=$((blksz * nr))
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_pwrite_byte 0x61 0 $sz $testdir/file1 >> $seqres.full
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sync
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echo "Create the reflink copies"
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for i in `seq 2 $nr`; do
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_cp_reflink $testdir/file1 $testdir/file$i
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done
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_test_remount
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free_blocks1=$(stat -f $testdir -c '%f')
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echo "Punch most of the blocks"
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$XFS_IO_PROG -f -c "fpunch 0 $sz" $testdir/file2
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$XFS_IO_PROG -f -c "fpunch 0 $((sz / 2))" $testdir/file3
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$XFS_IO_PROG -f -c "fpunch $((sz / 2)) $((sz / 2))" $testdir/file4
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_test_remount
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free_blocks2=$(stat -f $testdir -c '%f')
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echo "Punch all the files"
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for i in `seq 2 $nr`; do
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$XFS_IO_PROG -f -c "fpunch 0 $sz" $testdir/file$i
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done
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$XFS_IO_PROG -f -c "fpunch 0 $sz" $testdir/file1
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_test_remount
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free_blocks3=$(stat -f $testdir -c '%f')
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#echo $free_blocks0 $free_blocks1 $free_blocks2 $free_blocks3
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_within_tolerance "free blocks after reflink" $free_blocks1 $((free_blocks0 - blks)) $margin -v
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_within_tolerance "free blocks after punching some reflink copies" $free_blocks2 $free_blocks1 $margin -v
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_within_tolerance "free blocks after punching all copies" $free_blocks3 $free_blocks0 $margin -v
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# success, all done
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status=0
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exit
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