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btrfs: add regression test for incremental send
Test for a btrfs incremental send issue where we end up sending a wrong section of data from a file extent if the corresponding file extent is compressed and the respective file extent item has a non zero data offset. Fixed by the following linux kernel btrfs patch: Btrfs: use right clone root offset for compressed extents Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Filipe David Borba Manana
committed by
Dave Chinner
Dave Chinner
parent
8350a0bb05
commit
4eb876c371
@@ -2207,6 +2207,11 @@ run_check()
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"$@" >> $seqres.full 2>&1 || _fail "failed: '$@'"
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}
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_run_btrfs_util_prog()
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{
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run_check $BTRFS_UTIL_PROG $*
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}
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init_rc()
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{
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if [ "$iam" == new ]
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Executable
+119
@@ -0,0 +1,119 @@
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#! /bin/bash
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# FS QA Test No. btrfs/038
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#
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# Test for a btrfs incremental send issue where we end up sending a
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# wrong section of data from a file extent if the corresponding file
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# extent is compressed and the respective file extent item has a non
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# zero data offset.
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#
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# Fixed by the following linux kernel btrfs patch:
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#
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# Btrfs: use right clone root offset for compressed extents
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2014 Filipe Manana. 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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#
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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=`mktemp -d`
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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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rm -fr $tmp
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs btrfs
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_supported_os Linux
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_require_scratch
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_need_to_be_root
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FSSUM_PROG=$here/src/fssum
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[ -x $FSSUM_PROG ] || _notrun "fssum not built"
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rm -f $seqres.full
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_scratch_mkfs >/dev/null 2>&1
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_scratch_mount "-o compress-force=lzo"
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$XFS_IO_PROG -f -c "truncate 118811" $SCRATCH_MNT/foo
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$XFS_IO_PROG -c "pwrite -S 0x0d -b 39987 92267 39987" \
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$SCRATCH_MNT/foo | _filter_xfs_io
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_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT \
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$SCRATCH_MNT/mysnap1
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$XFS_IO_PROG -c "pwrite -S 0x3e -b 80000 200000 80000" \
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$SCRATCH_MNT/foo | _filter_xfs_io
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# Sync to avoid btrfs merging file extent items, which would make the test
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# succeed when it should fail.
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_run_btrfs_util_prog filesystem sync $SCRATCH_MNT
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$XFS_IO_PROG -c "pwrite -S 0xdc -b 10000 250000 10000" \
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$SCRATCH_MNT/foo | _filter_xfs_io
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$XFS_IO_PROG -c "pwrite -S 0xff -b 10000 300000 10000" \
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$SCRATCH_MNT/foo | _filter_xfs_io
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# will be used for incremental send to be able to issue clone operations
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_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT \
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$SCRATCH_MNT/clones_snap
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_run_btrfs_util_prog subvolume snapshot -r $SCRATCH_MNT \
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$SCRATCH_MNT/mysnap2
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run_check $FSSUM_PROG -A -f -w $tmp/1.fssum $SCRATCH_MNT/mysnap1
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run_check $FSSUM_PROG -A -f -w $tmp/2.fssum -x $SCRATCH_MNT/mysnap2/mysnap1 \
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-x $SCRATCH_MNT/mysnap2/clones_snap $SCRATCH_MNT/mysnap2
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run_check $FSSUM_PROG -A -f -w $tmp/clones.fssum $SCRATCH_MNT/clones_snap \
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-x $SCRATCH_MNT/clones_snap/mysnap1 -x $SCRATCH_MNT/clones_snap/mysnap2
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_run_btrfs_util_prog send $SCRATCH_MNT/mysnap1 -f $tmp/1.snap
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_run_btrfs_util_prog send $SCRATCH_MNT/clones_snap -f $tmp/clones.snap
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_run_btrfs_util_prog send -p $SCRATCH_MNT/mysnap1 \
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-c $SCRATCH_MNT/clones_snap $SCRATCH_MNT/mysnap2 -f $tmp/2.snap
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_scratch_unmount
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_check_btrfs_filesystem $SCRATCH_DEV
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_scratch_mkfs >/dev/null 2>&1
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_scratch_mount
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_run_btrfs_util_prog receive $SCRATCH_MNT -f $tmp/1.snap
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run_check $FSSUM_PROG -r $tmp/1.fssum $SCRATCH_MNT/mysnap1 2>> $seqres.full
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_run_btrfs_util_prog receive $SCRATCH_MNT -f $tmp/clones.snap
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run_check $FSSUM_PROG -r $tmp/clones.fssum $SCRATCH_MNT/clones_snap 2>> $seqres.full
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_run_btrfs_util_prog receive $SCRATCH_MNT -f $tmp/2.snap
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run_check $FSSUM_PROG -r $tmp/2.fssum $SCRATCH_MNT/mysnap2 2>> $seqres.full
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_scratch_unmount
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_check_btrfs_filesystem $SCRATCH_DEV
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status=0
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exit
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@@ -0,0 +1,9 @@
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QA output created by 038
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wrote 39987/39987 bytes at offset 92267
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XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 80000/80000 bytes at offset 200000
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XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 10000/10000 bytes at offset 250000
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XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 10000/10000 bytes at offset 300000
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XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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@@ -40,3 +40,4 @@
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035 auto quick
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036 auto quick
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037 auto quick
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038 auto quick
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