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generic: test reflink side effects
Test that ctime gets updated and suid is cleared when we reflink. Ensure we can't reflink about RLIMIT_FSIZE. Ensure that we can't expose stale preallocation block data when reflinking above EOF. Make sure dedupe actually catches a single different byte. 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>
This commit is contained in:
Darrick J. Wong
committed by
Eryu Guan
Eryu Guan
parent
da8ac46681
commit
298be055a0
Executable
+62
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#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2018 Oracle, Inc. All Rights Reserved.
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#
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# FS QA Test No. 513
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#
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# Ensure that ctime is updated and capabilities are cleared when reflinking.
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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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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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. ./common/reflink
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_scratch_reflink
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_require_command "$GETCAP_PROG" getcap
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_require_command "$SETCAP_PROG" setcap
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rm -f $seqres.full
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_scratch_mkfs >>$seqres.full 2>&1
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_scratch_mount
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$XFS_IO_PROG -f -c "pwrite -S 0x18 0 1m" $SCRATCH_MNT/foo >>$seqres.full
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$XFS_IO_PROG -f -c "pwrite -S 0x20 0 1m" $SCRATCH_MNT/bar >>$seqres.full
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$SETCAP_PROG cap_setgid,cap_setuid+ep $SCRATCH_MNT/bar
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before_cap="$($GETCAP_PROG -v $SCRATCH_MNT/bar)"
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before_ctime="$(stat -c '%z' $SCRATCH_MNT/bar)"
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sleep 1
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$XFS_IO_PROG -c "reflink $SCRATCH_MNT/foo" $SCRATCH_MNT/bar >> $seqres.full 2>&1
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after_cap="$($GETCAP_PROG -v $SCRATCH_MNT/bar)"
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after_ctime="$(stat -c '%z' $SCRATCH_MNT/bar)"
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echo "$before_cap $before_ctime" >> $seqres.full
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echo "$after_cap $after_ctime" >> $seqres.full
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test "$before_cap" != "$after_cap" || echo "Expected capabilities to drop."
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test "$before_ctime" != "$after_ctime" || echo "Expected ctime to change."
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echo Silence is golden.
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status=0
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exit
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@@ -0,0 +1,2 @@
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QA output created by 513
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Silence is golden.
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Executable
+49
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#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2018 Oracle, Inc. All Rights Reserved.
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#
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# FS QA Test No. 514
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#
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# Ensure that file size resource limits are respected when reflinking.
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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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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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. ./common/reflink
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_scratch_reflink
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_require_user
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rm -f $seqres.full
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_scratch_mkfs >>$seqres.full 2>&1
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_scratch_mount
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chmod a+rwx $SCRATCH_MNT
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$XFS_IO_PROG -f -c "pwrite -S 0x18 0 1m" $SCRATCH_MNT/foo >>$seqres.full
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su -s/bin/bash - $qa_user -c "ulimit -f 64 ; $XFS_IO_PROG -f -c \"reflink $SCRATCH_MNT/foo\" $SCRATCH_MNT/bar" >> $seqres.full 2>&1
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sz="$(stat -c '%s' $SCRATCH_MNT/bar)"
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if [ "$sz" -ne 0 ] && [ "$sz" -ne 65536 ]; then
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echo "Oddball file size $sz??"
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fi
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echo Silence is golden.
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status=0
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exit
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@@ -0,0 +1,2 @@
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QA output created by 514
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Silence is golden.
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Executable
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#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2018 Oracle, Inc. All Rights Reserved.
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#
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# FS QA Test No. 515
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#
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# Ensure that reflinking into a file well beyond EOF zeroes everything between
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# the old EOF and the start of the newly linked chunk. This is an adaptation
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# of a reproducer script that Eric Sandeen formulated from a stale data
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# exposure bug uncovered by shared/010.
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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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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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. ./common/reflink
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# real QA test starts here
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_supported_fs generic
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_supported_os Linux
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_require_scratch_reflink
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rm -f $seqres.full
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# Fill disk with a well known pattern so that stale data exposure becomes much
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# more obvious.
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$XFS_IO_PROG -c "pwrite -S 0x58 -b 1m 0 300m" $SCRATCH_DEV >> $seqres.full
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_scratch_mkfs_sized $((300 * 1048576)) >>$seqres.full 2>&1
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_scratch_mount
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DONOR1=$SCRATCH_MNT/a
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TARGET=$SCRATCH_MNT/b
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blksz=65536
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$XFS_IO_PROG -f -c "pwrite -S 0x72 0 $blksz" $DONOR1 >> $seqres.full
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$XFS_IO_PROG -f \
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-c "falloc -k $((blksz*2)) $blksz" \
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-c "pwrite -S 0x57 $((blksz*16)) 8192" \
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-c "fdatasync" \
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-c 'stat' \
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-c "reflink $DONOR1 0 $((blksz*17)) $blksz" \
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$TARGET >> $seqres.full
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od -tx1 -Ad -c $TARGET >> $seqres.full
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md5sum $DONOR1 | _filter_scratch
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md5sum $TARGET | _filter_scratch
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_scratch_cycle_mount
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od -tx1 -Ad -c $TARGET >> $seqres.full
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md5sum $DONOR1 | _filter_scratch
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md5sum $TARGET | _filter_scratch
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status=0
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exit
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@@ -0,0 +1,5 @@
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QA output created by 515
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34a4daf52c562253a2f6108c5123605a SCRATCH_MNT/a
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4fe4dfe3d2244bd380adcefdc5006e37 SCRATCH_MNT/b
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34a4daf52c562253a2f6108c5123605a SCRATCH_MNT/a
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4fe4dfe3d2244bd380adcefdc5006e37 SCRATCH_MNT/b
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Executable
+81
@@ -0,0 +1,81 @@
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#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2018, Oracle and/or its affiliates. All Rights Reserved.
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#
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# FS QA Test No. 516
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#
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# Ensuring that we cannot dedupe non-matching parts of files:
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# - Fail to dedupe non-identical parts of two different files
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# - Check that nothing changes in either file
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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 $((blksz * 2)) $((blksz * 6)) $testdir/file1 >> $seqres.full
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_pwrite_byte 0x61 $((blksz * 2)) $((blksz * 6)) $testdir/file2 >> $seqres.full
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_pwrite_byte 0x62 $(((blksz * 6) - 33)) 1 $testdir/file2 >> $seqres.full
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_test_cycle_mount
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md5sum $testdir/file1 | _filter_test_dir
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md5sum $testdir/file2 | _filter_test_dir
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_compare_range $testdir/file1 0 $testdir/file2 0 "$((blksz * 8))" \
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|| echo "Files 1-2 do not match (intentional)"
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echo "(partial) dedupe the middle blocks together"
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free_before=$(stat -f -c '%a' $testdir)
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_dedupe_range $testdir/file1 $((blksz * 4)) $testdir/file2 \
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$((blksz * 4)) $((blksz * 2)) 2>&1 | _filter_xfs_io_numbers | _filter_dedupe_error
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_test_cycle_mount
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${FILEFRAG_PROG} -v $testdir/file1 >> $seqres.full
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${FILEFRAG_PROG} -v $testdir/file2 >> $seqres.full
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free_after=$(stat -f -c '%a' $testdir)
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echo "freesp changed by $free_before -> $free_after" >> $seqres.full
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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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_compare_range $testdir/file1 0 $testdir/file2 0 $((blksz * 4)) \
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|| echo "Start sections do not match (error)"
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_compare_range $testdir/file1 $((blksz * 4)) $testdir/file2 \
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$((blksz * 4)) $((blksz * 2)) \
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|| echo "Middle sections do not match (intentional)"
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_compare_range $testdir/file1 $((blksz * 6)) $testdir/file2 \
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$((blksz * 6)) $((blksz * 2)) \
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|| echo "End sections do not match (error)"
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# success, all done
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status=0
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exit
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@@ -0,0 +1,11 @@
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QA output created by 516
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Create the original files
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35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-516/file1
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39578c21e2cb9f6049b1cf7fc7be12a6 TEST_DIR/test-516/file2
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Files 1-2 do not match (intentional)
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(partial) dedupe the middle blocks together
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XFS_IOC_FILE_EXTENT_SAME: Extents did not match.
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Compare sections
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35ac8d7917305c385c30f3d82c30a8f6 TEST_DIR/test-516/file1
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39578c21e2cb9f6049b1cf7fc7be12a6 TEST_DIR/test-516/file2
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Middle sections do not match (intentional)
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@@ -515,3 +515,7 @@
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510 auto quick log
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511 auto quick rw zero
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512 auto quick log prealloc
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513 auto quick clone
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514 auto quick clone
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515 auto quick clone
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516 auto quick dedupe clone
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