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reflink: basic tests of the reflink and dedupe ioctls
Test the operation of the btrfs (and now xfs) reflink and dedupe ioctls at various file offsets and with matching and nonmatching files. 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
20d7bfad2d
commit
cc8e860cc9
Executable
+128
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#! /bin/bash
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# FS QA Test No. 136
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#
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# Ensure that we can dedupe the last block of a file whose size isn't
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# block-aligned.
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# - Create two 'a' files file whose size isn't block-aligned.
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# - Create two 'b' files file whose size isn't block-aligned.
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# - Dedupe the last block of file1 to the last block in file2 and file3.
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# - Check that files 1-2 match, and that 3-4 match.
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# - Check that the ends of 1-2 and 3-4 match, and that 1-3 don't match.
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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_dedupe
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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 $((BLKSZ + 37)) "$TESTDIR/file1" >> "$seqres.full"
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_pwrite_byte 0x61 0 $((BLKSZ + 37)) "$TESTDIR/file2" >> "$seqres.full"
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_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file3" >> "$seqres.full"
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_pwrite_byte 0x62 0 $((BLKSZ + 37)) "$TESTDIR/file4" >> "$seqres.full"
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_test_remount
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md5sum "$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 "$TESTDIR/file4" | _filter_test_dir
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C1="$(_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 $TESTDIR/file4)"
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test "${C1}" = "${C2}" || echo "file1 and file2 should match"
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test "${C1}" != "${C3}" || echo "file1 and file3 should not match"
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test "${C1}" != "${C4}" || echo "file1 and file4 should not match"
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test "${C2}" != "${C3}" || echo "file2 and file3 should not match"
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test "${C2}" != "${C4}" || echo "file2 and file4 should not match"
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test "${C3}" = "${C4}" || echo "file3 and file4 should match"
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echo "Dedupe the last blocks together"
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_dedupe_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 >> "$seqres.full"
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_dedupe_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 >> "$seqres.full"
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_test_remount
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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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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 $TESTDIR/file4)"
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echo "Compare files"
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test "${C1}" = "${C2}" || echo "file1 and file2 should match"
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test "${C1}" != "${C3}" || echo "file1 and file3 should not match"
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test "${C1}" != "${C4}" || echo "file1 and file4 should not match"
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test "${C2}" != "${C3}" || echo "file2 and file3 should not match"
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test "${C2}" != "${C4}" || echo "file2 and file4 should not match"
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test "${C3}" = "${C4}" || echo "file3 and file4 should match"
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echo "Compare sections"
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_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file2" $BLKSZ 37 \
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|| echo "End sections of files 1-2 do not match"
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_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \
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|| echo "End sections of files 1-3 do not match (intentional)"
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_compare_range "$TESTDIR/file1" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \
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|| echo "End sections of files 1-4 do not match (intentional)"
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_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file3" $BLKSZ 37 \
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|| echo "End sections of files 2-3 do not match (intentional)"
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_compare_range "$TESTDIR/file2" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \
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|| echo "End sections of files 2-4 do not match (intentional)"
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_compare_range "$TESTDIR/file3" $BLKSZ "$TESTDIR/file4" $BLKSZ 37 \
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|| echo "End sections of files 3-4 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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