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https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Jan Kara
9e8b4e2755
Add test which spawns two threads both writing one file via mmap which has been previously prefaulted by reading. Do the same test when one thread accesses the file via mmap and the other one via normal write. This is mainly interesting to uncover races in DAX fault handling and between DAX fault handling and write path. Signed-off-by: Jan Kara <jack@suse.cz> Acked-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
61 lines
1.7 KiB
Bash
61 lines
1.7 KiB
Bash
#! /bin/bash
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# FSQA Test No. 344
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#
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# Test races between mmap from racing threads when pages are prefaulted,
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# Test races between mmap and buffered writes when pages are prefaulted.
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#
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#-----------------------------------------------------------------------
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#
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# Copyright (C) 2016 SUSE Linux Products GmbH. All Rights Reserved.
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# Author: Jan Kara <jack@suse.cz>
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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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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 and checks
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. ./common/rc
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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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_require_scratch
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_require_test_program "holetest"
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rm -f $seqres.full
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_scratch_mkfs >>$seqres.full 2>&1
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_scratch_mount
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src/holetest -f -r $SCRATCH_MNT/testfile 16
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src/holetest -f -r $SCRATCH_MNT/testfile 256
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src/holetest -f -r -w $SCRATCH_MNT/testfile 16
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src/holetest -f -r -w $SCRATCH_MNT/testfile 256
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status=0
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exit
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