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Darrick J. Wong
a738e04549
Commit 1ddae54555 ("common/rc: add missing 'local' keywords") exposed
a long-hidden bug in generic/304 -- previously we'd set len to 8EiB, but
_pwrite_byte reset it to 1 because the helper clumsily polluted the
caller's variable namespace. Now that's fixed, but we send an 8EiB
dedupe request to the kernel, which on XFS locks up the kernel while
doing this. The point of this test is to demonstrate that one cannot
dedupe the last byte of a (2^63-1) byte file (that's the way the
interface has behaved historically), so start at 64k below that instead
of offset zero.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
107 lines
3.3 KiB
Bash
Executable File
107 lines
3.3 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 304
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#
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# Check that high-offset dedupes work.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2016, 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/attr
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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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_require_cp_reflink
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rm -f $seqres.full
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echo "Format and mount"
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testdir=$TEST_DIR/test-$seq
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mkdir $testdir
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echo "Create the original files"
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bigoff=9223372036854775806
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len=9223372036854775807
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bigoff_64k=9223372036854710272 # bigoff rounded down to 64k
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$XFS_IO_PROG -f -c "truncate $len" $testdir/file0 >> $seqres.full
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test -s $testdir/file0 || _notrun "High offset ftruncate failed"
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_pwrite_byte 0x61 $bigoff 1 $testdir/file1 >> $seqres.full
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_pwrite_byte 0x61 $bigoff 1 $testdir/file3 >> $seqres.full
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_pwrite_byte 0x61 1048575 1 $testdir/file2 >> $seqres.full
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echo "Dedupe large single byte file"
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_dedupe_range $testdir/file1 $bigoff_64k $testdir/file3 $bigoff_64k 65536 \
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2>&1 >> $seqres.full | _filter_dedupe_error
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echo "Dedupe large empty file"
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_dedupe_range $testdir/file0 0 $testdir/file4 0 $len \
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2>&1 >> $seqres.full | _filter_dedupe_error
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echo "Dedupe past maximum file size in dest file (should fail)"
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_dedupe_range $testdir/file1 0 $testdir/file5 4611686018427322368 $len \
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2>&1 >> $seqres.full | _filter_dedupe_error
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echo "Dedupe high offset to low offset"
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_dedupe_range $testdir/file1 $bigoff_64k $testdir/file6 1048576 65535 \
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2>&1 >> $seqres.full | _filter_dedupe_error
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echo "Dedupe past source file EOF (should fail)"
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_dedupe_range $testdir/file2 524288 $testdir/file7 0 1048576 \
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2>&1 >> $seqres.full | _filter_dedupe_error
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echo "Dedupe max size at nonzero offset (should fail)"
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_dedupe_range $testdir/file2 524288 $testdir/file8 0 $len \
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2>&1 >> $seqres.full | _filter_dedupe_error
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echo "Dedupe with huge off/len (should fail)"
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_dedupe_range $testdir/file2 $bigoff_64k $testdir/file9 0 $bigoff_64k \
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2>&1 >> $seqres.full | _filter_dedupe_error
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echo "Check file creation"
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_test_cycle_mount
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echo "file3"
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$XFS_IO_PROG -c "pread -v -q $bigoff 1" $testdir/file3
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echo "file4"
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$XFS_IO_PROG -c "pread -v -q $bigoff 1" $testdir/file4
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# file5 should fail above
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echo "file6"
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$XFS_IO_PROG -c "pread -v -q 1114110 1" $testdir/file6
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# file7 should fail above
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# success, all done
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status=0
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exit
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