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reflink: test the various fallocate modes
Check that the variants of fallocate (allocate, punch, zero range, collapse range, insert range) do the right thing when they're run against a range of reflinked blocks. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Darrick J. Wong
committed by
Dave Chinner
Dave Chinner
parent
6a4e8b81d9
commit
c84e01bac3
Executable
+142
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#! /bin/bash
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# FS QA Test No. 144
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#
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# Ensure that fallocate steps around reflinked ranges:
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# - Reflink parts of two files together
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# - Fallocate all the other sparse space.
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# - Check that the reflinked areas are still there.
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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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_require_xfs_io_command "falloc"
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_require_xfs_io_command "truncate"
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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 $((BLKSZ * 5 + 37)) "$TESTDIR/file1" >> "$seqres.full"
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_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ \
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$((BLKSZ * 4 + 37)) >> "$seqres.full"
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"$XFS_IO_PROG" -f -c "truncate $((BLKSZ * 5 + 37))" "$TESTDIR/file3" >> "$seqres.full"
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_reflink_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $BLKSZ >> "$seqres.full"
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"$XFS_IO_PROG" -f -c "truncate $((BLKSZ * 5 + 37))" "$TESTDIR/file4" >> "$seqres.full"
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_reflink_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ $BLKSZ >> "$seqres.full"
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_reflink_range "$TESTDIR/file1" $((BLKSZ * 3)) "$TESTDIR/file4" $((BLKSZ * 3)) \
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$BLKSZ >> "$seqres.full"
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_cp_reflink "$TESTDIR/file1" "$TESTDIR/file5"
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_test_remount
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echo "Compare sections"
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md5sum "$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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md5sum "$TESTDIR/file4" | _filter_test_dir
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md5sum "$TESTDIR/file5" | _filter_test_dir
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_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ \
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$((BLKSZ * 4 + 37)) \
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|| echo "shared parts of files 1-2 changed"
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_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file3" 0 $BLKSZ \
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|| echo "shared parts of files 1-3 changed"
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_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ $BLKSZ \
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|| echo "shared parts of files 1-4 changed"
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_compare_range "$TESTDIR/file1" 0 "$TESTDIR/file5" 0 $((BLKSZ * 5 + 37)) \
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|| echo "shared parts of files 1-5 changed"
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echo "Compare files"
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C1="$(_md5_checksum "$TESTDIR/file1")"
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C2="$(_md5_checksum "$TESTDIR/file2")"
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C3="$(_md5_checksum "$TESTDIR/file3")"
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C4="$(_md5_checksum "$TESTDIR/file4")"
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C5="$(_md5_checksum "$TESTDIR/file5")"
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test "${C1}" != "${C2}" || echo "file1 and file2 should not match"
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test "${C1}" != "${C3}" || echo "file1 and file3 should not match"
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test "${C1}" != "${C4}" || echo "file1 and file4 should not match"
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test "${C1}" = "${C5}" || echo "file1 and file5 should match"
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test "${C2}" != "${C3}" || echo "file2 and file3 should not match"
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test "${C2}" != "${C4}" || echo "file2 and file4 should not match"
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test "${C2}" != "${C5}" || echo "file2 and file5 should not match"
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test "${C3}" != "${C4}" || echo "file3 and file4 should not match"
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test "${C3}" != "${C5}" || echo "file3 and file5 should not match"
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test "${C4}" != "${C5}" || echo "file4 and file5 should not match"
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echo "falloc everything"
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"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 5))" "$TESTDIR/file2" >> "$seqres.full"
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"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 5))" "$TESTDIR/file3" >> "$seqres.full"
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"$XFS_IO_PROG" -f -c "falloc 0 $((BLKSZ * 5))" "$TESTDIR/file4" >> "$seqres.full"
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_test_remount
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echo "Compare files"
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md5sum "$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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md5sum "$TESTDIR/file4" | _filter_test_dir
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md5sum "$TESTDIR/file5" | _filter_test_dir
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D1="$(_md5_checksum "$TESTDIR/file1")"
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D2="$(_md5_checksum "$TESTDIR/file2")"
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D3="$(_md5_checksum "$TESTDIR/file3")"
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D4="$(_md5_checksum "$TESTDIR/file4")"
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D5="$(_md5_checksum "$TESTDIR/file5")"
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test "${C1}" = "${D1}" || echo "file1 should not change"
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test "${C2}" = "${D2}" || echo "file2 should not change"
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test "${C3}" = "${D3}" || echo "file3 should not change"
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test "${C4}" = "${D4}" || echo "file4 should not change"
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test "${C5}" = "${D5}" || echo "file2 should not change"
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# success, all done
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status=0
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exit
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