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Theodore Ts'o
dddae984bc
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 _test_mount performs "_test_mount ; _test_umount"
so mechnically rename this function to _test_cycle_mount. This was
done mechnically using the script fragment:
git grep -E "_test_remount" | \
awk -F: '{print $1}' | sort -u | grep -v tests/xfs/189 \
xargs sed -i 's/_test_remount/_test_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>
153 lines
5.2 KiB
Bash
Executable File
153 lines
5.2 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 140
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#
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# Ensuring that mmap copy on write through the page cache works:
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# - Reflink two files together
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# - Write to the beginning, middle, and end
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# - Check that the files are now different where we say they're different.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2015, 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.* $testdir
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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_test_reflink
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_require_cp_reflink
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rm -f $seqres.full
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testdir=$TEST_DIR/test-$seq
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rm -rf $testdir
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mkdir $testdir
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echo "Create the original files"
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blksz=65536
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_pwrite_byte 0x61 0 $((blksz * 48 - 3)) $testdir/file1 >> $seqres.full
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_cp_reflink $testdir/file1 $testdir/file2 >> $seqres.full
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_pwrite_byte 0x61 0 $((blksz * 48 - 3)) $testdir/file3 >> $seqres.full
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_test_cycle_mount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_test_dir
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md5sum $testdir/file2 | _filter_test_dir
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md5sum $testdir/file3 | _filter_test_dir
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cmp -s $testdir/file1 $testdir/file2 || echo "Files 1-2 do not match"
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cmp -s $testdir/file1 $testdir/file3 || echo "Files 1-3 do not match"
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cmp -s $testdir/file2 $testdir/file3 || echo "Files 2-3 do not match"
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echo "mmap CoW the second file"
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_mwrite_byte 0x62 0 17 $((blksz * 48 - 3)) $testdir/file2 >> $seqres.full
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_mwrite_byte 0x62 0 17 $((blksz * 48 - 3)) $testdir/file3 >> $seqres.full
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_mwrite_byte 0x62 $((blksz * 16 - 34)) 17 $((blksz * 48 - 3)) $testdir/file2 >> $seqres.full
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_mwrite_byte 0x62 $((blksz * 16 - 34)) 17 $((blksz * 48 - 3)) $testdir/file3 >> $seqres.full
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_mwrite_byte 0x62 $((blksz * 48 - 20)) 17 $((blksz * 48 - 3)) $testdir/file2 >> $seqres.full
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_mwrite_byte 0x62 $((blksz * 48 - 20)) 17 $((blksz * 48 - 3)) $testdir/file3 >> $seqres.full
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_test_cycle_mount
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echo "Compare files"
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md5sum $testdir/file1 | _filter_test_dir
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md5sum $testdir/file2 | _filter_test_dir
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md5sum $testdir/file3 | _filter_test_dir
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cmp -s $testdir/file1 $testdir/file2 || echo "Files 1-2 do not match (intentional)"
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cmp -s $testdir/file1 $testdir/file3 || echo "Files 1-3 do not match (intentional)"
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cmp -s $testdir/file2 $testdir/file3 || echo "Files 2-3 do not match"
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echo "Compare the CoW'd section to the before file"
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_compare_range $testdir/file1 0 $testdir/file2 0 17 \
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|| echo "Start sections do not match (intentional)"
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_compare_range $testdir/file1 $((blksz * 16 - 34)) \
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$testdir/file2 $((blksz * 16 - 34)) 17 \
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|| echo "Middle sections do not match (intentional)"
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_compare_range $testdir/file1 $((blksz * 48 - 20)) \
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$testdir/file2 $((blksz * 48 - 20)) 17 \
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|| echo "End sections do not match (intentional)"
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echo "Compare the CoW'd section to the after file"
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_compare_range $testdir/file2 0 $testdir/file3 0 17 \
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|| echo "Start sections do not match"
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_compare_range $testdir/file2 $((blksz * 16 - 34)) \
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$testdir/file3 $((blksz * 16 - 34)) 17 \
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|| echo "Middle sections do not match"
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_compare_range $testdir/file2 $((blksz * 48 - 20)) \
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$testdir/file3 $((blksz * 48 - 20)) 17 \
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|| echo "End sections do not match"
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echo "Compare the not CoW'd sections"
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_compare_range $testdir/file1 18 $testdir/file2 18 17 \
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|| echo "Start sections of 1-2 do not match"
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_compare_range $testdir/file2 18 $testdir/file3 18 17 \
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|| echo "Start sections of 2-3 do not match"
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_compare_range $testdir/file1 $((blksz * 16 - 17)) \
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$testdir/file2 $((blksz * 16 - 17)) 82 \
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|| echo "Middle sections of 1-2 do not match"
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_compare_range $testdir/file2 $((blksz * 16 - 17)) \
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$testdir/file3 $((blksz * 16 - 17)) 82 \
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|| echo "Middle sections of 2-3 do not match"
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_compare_range $testdir/file1 $((blksz * 48 - 120)) \
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$testdir/file2 $((blksz * 48 - 120)) 100 \
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|| echo "End sections of 1-2 do not match"
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_compare_range $testdir/file2 $((blksz * 48 - 120)) \
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$testdir/file3 $((blksz * 48 - 120)) 100 \
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|| echo "End sections of 2-3 do not match"
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_compare_range $testdir/file1 $((blksz * 14)) \
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$testdir/file2 $((blksz * 14)) $blksz \
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|| echo "Untouched sections of 1-2 do not match"
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_compare_range $testdir/file2 $((blksz * 14)) \
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$testdir/file3 $((blksz * 14)) $blksz \
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|| echo "Untouched sections of 2-3 do not match"
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# success, all done
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status=0
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exit
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