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xfstests: btrfs: cross-subvolume sparse copy
This testscript creates reflinks to files on different subvolumes, overwrites the original files and reflinks, and moves reflinked files between subvolumes. Signed-off-by: Koen De Wit <koen.de.wit@oracle.com> Reviewed-by: David Sterba <dsterba@suse.cz> Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Koen De Wit
committed by
Dave Chinner
Dave Chinner
parent
1ed9046c3f
commit
0c58766aac
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#! /bin/bash
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# FS QA Test No. 031
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#
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# Testing cross-subvolume sparse copy on btrfs
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# - Create two subvolumes, mount one of them
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# - Create a file on each (sub/root)volume,
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# reflink them on the other volumes
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# - Change one original and two reflinked files
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# - Move reflinked files between subvolumes
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2014, 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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umount $SCRATCH_MNT
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rm -rf $TESTDIR1
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rm -rf $TESTDIR2
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$BTRFS_UTIL_PROG subvolume delete $SUBVOL1 >> $seqres.full
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$BTRFS_UTIL_PROG subvolume delete $SUBVOL2 >> $seqres.full
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cd /
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rm -f $tmp.*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs btrfs
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_supported_os Linux
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_require_scratch
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_require_cp_reflink
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_checksum_files() {
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for F in file1 file2 file3
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do
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echo "$F:"
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for D in $TESTDIR1 $SCRATCH_MNT $SUBVOL2
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do
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_md5_checksum $D/$F
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done
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done
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}
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TESTDIR1=$TEST_DIR/test-$seq-1
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TESTDIR2=$TEST_DIR/test-$seq-2
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SUBVOL1=$TEST_DIR/subvol-$seq-1
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SUBVOL2=$TEST_DIR/subvol-$seq-2
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_scratch_unmount 2>/dev/null
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rm -rf $seqres.full
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rm -rf $TESTDIR1 $TESTDIR2
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$BTRFS_UTIL_PROG subvolume delete $SUBVOL1 >/dev/null 2>&1
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$BTRFS_UTIL_PROG subvolume delete $SUBVOL2 >/dev/null 2>&1
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mkdir $TESTDIR1
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mkdir $TESTDIR2
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$BTRFS_UTIL_PROG subvolume create $SUBVOL1 >> $seqres.full
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$BTRFS_UTIL_PROG subvolume create $SUBVOL2 >> $seqres.full
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_mount -t btrfs -o subvol=subvol-$seq-1 $TEST_DEV $SCRATCH_MNT
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echo "Create initial files"
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# TESTDIR1/file1 is very small and will be inlined
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$XFS_IO_PROG -f -c 'pwrite -S 0x61 0 10' $TESTDIR1/file1 \
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>> $seqres.full
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$XFS_IO_PROG -f -c 'pwrite -S 0x62 0 13000' $SCRATCH_MNT/file2 \
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>> $seqres.full
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$XFS_IO_PROG -f -c 'pwrite -S 0x63 0 17000' $SUBVOL2/file3 \
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>> $seqres.full
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echo "Create reflinks to the initial files on other subvolumes"
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cp --reflink=always $TESTDIR1/file1 $SUBVOL1
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cp --reflink=always $TESTDIR1/file1 $SUBVOL2
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cp --reflink=always $SUBVOL1/file2 $TESTDIR1/
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cp --reflink=always $SUBVOL1/file2 $SUBVOL2
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cp --reflink=always $SUBVOL2/file3 $TESTDIR1/
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cp --reflink=always $SUBVOL2/file3 $SUBVOL1
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echo "Verify the reflinks"
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_verify_reflink $SCRATCH_MNT/file2 $TESTDIR1/file2
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_verify_reflink $SCRATCH_MNT/file2 $SUBVOL2/file2
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_verify_reflink $SUBVOL2/file3 $TESTDIR1/file3
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_verify_reflink $SUBVOL2/file3 $SCRATCH_MNT/file3
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echo "Verify the file contents:"
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_checksum_files
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echo -e "---\nOverwrite some files with new content"
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$XFS_IO_PROG -c 'pwrite -S 0x64 0 20' $TESTDIR1/file1 >> $seqres.full
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$XFS_IO_PROG -c 'pwrite -S 0x66 0 21000' $SUBVOL2/file2 >> $seqres.full
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$XFS_IO_PROG -c 'pwrite -S 0x65 5000 5000' $SCRATCH_MNT/file3 \
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>> $seqres.full
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echo -n "Verify that non-overwritten reflinks "
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echo "still have the same data blocks"
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_verify_reflink $TESTDIR1/file2 $SCRATCH_MNT/file2
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_verify_reflink $TESTDIR1/file3 $SUBVOL2/file3
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echo "Verify the file contents:"
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_checksum_files
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echo -e "---\nShuffle files between directories"
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mv $TESTDIR1/file* $TESTDIR2
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mv $SCRATCH_MNT/file* $TESTDIR1/
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mv $SUBVOL2/file* $SCRATCH_MNT/
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mv $TESTDIR2/file* $SUBVOL2/
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# No _verify_reflink here as data is copied when moving files
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# between subvols
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echo "Verify the file contents:"
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_checksum_files
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# success, all done
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status=0
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exit
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@@ -0,0 +1,48 @@
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QA output created by 031
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Create initial files
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Create reflinks to the initial files on other subvolumes
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Verify the reflinks
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Verify the file contents:
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file1:
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e09c80c42fda55f9d992e59ca6b3307d
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e09c80c42fda55f9d992e59ca6b3307d
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e09c80c42fda55f9d992e59ca6b3307d
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file2:
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d7402b46310fbbfbc5e466b1dccb043b
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d7402b46310fbbfbc5e466b1dccb043b
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d7402b46310fbbfbc5e466b1dccb043b
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file3:
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5a95800e4c04b11117aa4e4de057721f
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5a95800e4c04b11117aa4e4de057721f
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5a95800e4c04b11117aa4e4de057721f
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---
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Overwrite some files with new content
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Verify that non-overwritten reflinks still have the same data blocks
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Verify the file contents:
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file1:
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00d620f69f30327f0f8946b95c12de44
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e09c80c42fda55f9d992e59ca6b3307d
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e09c80c42fda55f9d992e59ca6b3307d
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file2:
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d7402b46310fbbfbc5e466b1dccb043b
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d7402b46310fbbfbc5e466b1dccb043b
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917619ae44b38bb9968af261c3c45440
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file3:
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5a95800e4c04b11117aa4e4de057721f
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b9f275cd638cb784c9e61def94c622a8
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5a95800e4c04b11117aa4e4de057721f
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---
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Shuffle files between directories
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Verify the file contents:
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file1:
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e09c80c42fda55f9d992e59ca6b3307d
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e09c80c42fda55f9d992e59ca6b3307d
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00d620f69f30327f0f8946b95c12de44
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file2:
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d7402b46310fbbfbc5e466b1dccb043b
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917619ae44b38bb9968af261c3c45440
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d7402b46310fbbfbc5e466b1dccb043b
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file3:
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b9f275cd638cb784c9e61def94c622a8
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5a95800e4c04b11117aa4e4de057721f
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5a95800e4c04b11117aa4e4de057721f
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@@ -33,3 +33,4 @@
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028 auto quick
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029 auto quick
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030 auto quick
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031 auto quick
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