mirror of
https://github.com/linux-apfs/apfstests.git
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96 lines
2.3 KiB
Bash
96 lines
2.3 KiB
Bash
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#! /bin/bash
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# FS QA Test No. 163
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#
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# Test for race between dedupe and writing the source file
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2015 Oracle, Inc. 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 7 15
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_cleanup()
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{
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cd /
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rm -rf "$tmp".*
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wait
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/reflink
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# real QA test starts here
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_supported_os Linux
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_require_scratch_dedupe
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echo "Format and mount"
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_scratch_mkfs > "$seqres.full" 2>&1
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_scratch_mount >> "$seqres.full" 2>&1
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TESTDIR="$SCRATCH_MNT/test-$seq"
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rm -rf "$TESTDIR"
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mkdir "$TESTDIR"
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loops=512
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nr_loops=$((loops - 1))
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BLKSZ=65536
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echo "Initialize files"
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echo > "$seqres.full"
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_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file1" >> "$seqres.full"
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_pwrite_byte 0x61 0 $((loops * BLKSZ)) "$TESTDIR/file2" >> "$seqres.full"
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_scratch_remount
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overwrite() {
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while [ ! -e "$TESTDIR/finished" ]; do
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seq $nr_loops -1 0 | while read i; do
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_pwrite_byte 0x61 $((i * BLKSZ)) $BLKSZ "$TESTDIR/file1" >> "$seqres.full"
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done
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done
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}
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echo "Dedupe and rewrite the file!"
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overwrite &
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for i in `seq 1 2`; do
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seq $nr_loops -1 0 | while read i; do
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_dedupe_range "$TESTDIR/file1" $((i * BLKSZ)) \
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"$TESTDIR/file2" $((i * BLKSZ)) $BLKSZ >> "$seqres.full"
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[ $? -ne 0 ] && break
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done
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done
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echo "Finished dedupeing"
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touch "$TESTDIR/finished"
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wait
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echo "Check fs"
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umount "$SCRATCH_MNT"
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_check_scratch_fs
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echo "Done"
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# success, all done
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status=0
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exit
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