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https://github.com/linux-apfs/apfstests.git
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Eric Sandeen
cef2e7a583
This tests Brian Foster's fix for xfs: xfs: always drain dio before extending aio write submission It launches four adjacent 1k IOs past EOF, then reads back to see if we have 4k worth of the data we wrote, or something else - possibly zeros from sub-block zeroing and eof racing. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.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 No. 114
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#
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# Test races while extending past EOF via sub-block AIO writes
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2015 Red Hat, 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 15
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_cleanup()
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{
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cd /
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rm -f $TEST_DIR/tst-aio-dio-eof-race
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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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_supported_fs generic
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_supported_os Linux
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_require_test
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_require_sparse_files
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_require_aiodio aio-dio-eof-race
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# Test does 512 byte DIO, so make sure that'll work
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logical_block_size=`_min_dio_alignment $TEST_DEV`
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if [ "$logical_block_size" -gt "512" ]; then
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_notrun "device block size: $logical_block_size greater than 512"
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fi
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# We don't mind 512-byte fs blocks; the IOs won't be sub-block,
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# but the test should still pass, even if it doesn't stress the code
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# we're targeting.
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# Note, this test does several extending loops internally
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$AIO_TEST $TEST_DIR/tst-aio-dio-eof-race
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status=$?
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exit
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