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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Darrick J. Wong
58ac6c6424
Ensure that we correctly handle a CoW operation immediately followed by a truncate, falloc, fpunch, fzero, fcollapse, and finsert operation in the middle of the CoW'd region before any flush can occur. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
91 lines
2.6 KiB
Bash
Executable File
91 lines
2.6 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 261
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#
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# fcollapse a file at midway through a CoW region.
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#
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# This test is dependent on the system page size, so we cannot use md5 in
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# the golden output; we can only compare to a check file.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2016, 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.*
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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_scratch_reflink
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_require_cp_reflink
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_require_xfs_io_command "fcollapse"
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rm -f $seqres.full
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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 $testdir
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blksz=65536
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nr=5
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filesize=$((blksz * nr))
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echo "Create the original files"
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_pwrite_byte 0x61 0 $filesize $testdir/file1 >> $seqres.full
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_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
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_pwrite_byte 0x61 0 $filesize $testdir/file2.chk >> $seqres.full
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_scratch_remount
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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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md5sum $testdir/file2.chk | _filter_scratch
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echo "CoW and unmount"
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$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 3)) $blksz $((blksz * 3))" -c "fcollapse $((blksz * 2)) $blksz" $testdir/file2 >> $seqres.full
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_scratch_remount
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$XFS_IO_PROG -f -c "pwrite -S 0x62 -b $((blksz * 2)) $blksz $((blksz * 2))" -c "truncate $((blksz * (nr - 1)))" $testdir/file2.chk >> $seqres.full
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_scratch_remount
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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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md5sum $testdir/file2.chk | _filter_scratch
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# success, all done
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status=0
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exit
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