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Theodore Ts'o
76c21d6815
This makes it clear when we are using "mount ; umount" versus "mount
-o remount" for most file systems. The reason for this distinction is
(a) tests may want to test the difference between what happens on the
remount versus the munt paths, (b) with tmpfs, "mount ; umount" will
cause the contents of all of the files to disappear which makes many
tests sad, and (c) some mount options may not be changed using "mount
-o remount".
Currently _scratch_mount performs "_scratch_mount ; _scratch_umount"
so mechnically rename this function to _scratch_cycle_mount. This was
done mechnically using the script fragment:
git grep "_scratch_remount" | \
awk -F: '{print $1}' | sort -u | \
xargs sed -i 's/_scratch_remount/_scratch_cycle_mount/g'
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
124 lines
4.3 KiB
Bash
Executable File
124 lines
4.3 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. generic/029
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#
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# Test mapped writes against truncate down/up to ensure we get the data
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# correctly written. This can expose data corruption bugs on filesystems where
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# the block size is smaller than the page size.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2014 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 $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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# Modify as appropriate.
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_supported_fs generic
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_supported_os IRIX Linux
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_require_scratch
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testfile=$SCRATCH_MNT/testfile
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_scratch_mkfs > /dev/null 2>&1
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_scratch_mount
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# first case is just truncate down/truncate up to check that the mapped
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# write after the truncate up is correctly handled.
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$XFS_IO_PROG -t -f \
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-c "truncate 5120" `# truncate | |` \
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-c "pwrite -S 0x58 0 5120" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \
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-c "mmap -rw 0 5120" `# mmap | |` \
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-c "mwrite -S 0x5a 2048 3072" `# mwrite | ZZZZZZZZZZZZZZ|` \
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-c "truncate 2048" `# truncate dn | |` \
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-c "truncate 5120" `# truncate up | |` \
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-c "mwrite -S 0x59 2048 3072" `# mwrite | YYYYYYYYYYYYYY|` \
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-c "close" \
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$testfile | _filter_xfs_io
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echo "==== Pre-Remount ==="
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hexdump -C $testfile
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_scratch_cycle_mount
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echo "==== Post-Remount =="
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hexdump -C $testfile
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rm -f $testfile
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sync
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# second case is to do a mwrite between the truncate to a block on the
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# same page we are truncating within the EOF. This checks that a mapped
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# write between truncate down and truncate up a further mapped
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# write to the same page into the new space doesn't result in data being lost.
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$XFS_IO_PROG -t -f \
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-c "truncate 5120" `# truncate | |` \
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-c "pwrite -S 0x58 0 5120" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \
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-c "mmap -rw 0 5120" `# mmap | |` \
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-c "mwrite -S 0x5a 2048 3072" `# mwrite | ZZZZZZZZZZZZZZ|` \
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-c "truncate 2048" `# truncate dn | |` \
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-c "mwrite -S 0x57 1024 1024" `# mwrite | WWWWW |` \
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-c "truncate 5120" `# truncate up | |` \
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-c "mwrite -S 0x59 2048 3072" `# mwrite | YYYYYYYYYYYYYY|` \
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-c "close" \
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$testfile | _filter_xfs_io
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echo "==== Pre-Remount ==="
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hexdump -C $testfile
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_scratch_cycle_mount
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echo "==== Post-Remount =="
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hexdump -C $testfile
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# third case is the same as second case, just with non-1k aligned offsets and
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# sizes.
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$XFS_IO_PROG -t -f \
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-c "truncate 5121" `# truncate | |` \
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-c "pwrite -S 0x58 0 5121" `# write |XXXXXXXXXXXXXXXXXXXXXXXX|` \
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-c "mmap -rw 0 5121" `# mmap | |` \
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-c "mwrite -S 0x5a 2047 3071" `# mwrite | ZZZZZZZZZZZZZZ|` \
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-c "truncate 2047" `# truncate dn | |` \
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-c "mwrite -S 0x57 513 1025" `# mwrite | WWWWW |` \
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-c "truncate 5121" `# truncate up | |` \
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-c "mwrite -S 0x59 2047 3071" `# mwrite | YYYYYYYYYYYYYY|` \
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-c "close" \
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$testfile | _filter_xfs_io
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echo "==== Pre-Remount ==="
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hexdump -C $testfile
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_scratch_cycle_mount
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echo "==== Post-Remount =="
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hexdump -C $testfile
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status=0
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exit
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