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https://github.com/linux-apfs/apfstests.git
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Calvin Owens
9d0c046534
Verify that punching holes at ends of files does not alter st_size if we pass FALLOC_FL_KEEP_SIZE to fallocate(). [eguan: add comment about xfs_io's fpunch KEEP_SIZE flag] Signed-off-by: Calvin Owens <calvinowens@fb.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
66 lines
1.8 KiB
Bash
Executable File
66 lines
1.8 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test 420
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#
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# Verify fallocate(mode=FALLOC_FL_KEEP_SIZE|FALLOC_FL_PUNCH_HOLE) does
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# not alter the file size.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2017 Calvin Owens. 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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# remove previous $seqres.full before test
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rm -f $seqres.full
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# real QA test starts here
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# Modify as appropriate.
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_supported_fs generic
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_supported_os Linux
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_require_test
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_require_xfs_io_command fpunch
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testfile="${TEST_DIR}/testfile"
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echo "Testing fallocate(mode=FALLOC_FL_KEEP_SIZE|FALLOC_FL_PUNCH_HOLE)"
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$XFS_IO_PROG -fc "pwrite -b 2048 0 2048" $testfile | head -n1
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# fpunch from xfs_io has KEEP_SIZE flag set
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$XFS_IO_PROG -c "fpunch 2048 2048" $testfile
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$XFS_IO_PROG -c "stat" $testfile | grep -F 'stat.size'
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# success, all done
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status=0
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exit
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