2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2014, Oracle and/or its affiliates. All Rights Reserved.
7 # Testing cross-subvolume sparse copy on btrfs
8 # - Create two subvolumes, mount one of them
9 # - Create a file on each (sub/root)volume,
10 # reflink them on the other volumes
11 # - Change one original and two reflinked files
12 # - Move reflinked files between subvolumes
15 seqres=$RESULT_DIR/$seq
16 echo "QA output created by $seq"
20 status=1 # failure is the default!
21 trap "_cleanup; exit \$status" 0 1 2 3 15
29 # get standard environment, filters and checks
34 # real QA test starts here
43 for f in file1 file2 file3; do
45 for d in $testdir1 $cross_mount_test_dir $subvol2; do
51 testdir1=$SCRATCH_MNT/test-$seq-1
52 testdir2=$SCRATCH_MNT/test-$seq-2
53 subvol1=$SCRATCH_MNT/subvol-$seq-1
54 subvol2=$SCRATCH_MNT/subvol-$seq-2
55 cross_mount_test_dir=$TEST_DIR/test-$seq
59 _scratch_mkfs > /dev/null 2>&1
64 $BTRFS_UTIL_PROG subvolume create $subvol1 >> $seqres.full
65 $BTRFS_UTIL_PROG subvolume create $subvol2 >> $seqres.full
66 rm -rf $cross_mount_test_dir
67 mkdir $cross_mount_test_dir
69 _mount -t btrfs -o subvol=subvol-$seq-1 $SCRATCH_DEV $cross_mount_test_dir
71 echo "Create initial files"
72 # #testdir1/file1 is very small and will be inlined
73 $XFS_IO_PROG -f -c 'pwrite -S 0x61 0 10' $testdir1/file1 \
75 $XFS_IO_PROG -f -c 'pwrite -S 0x62 0 13000' $cross_mount_test_dir/file2 \
77 $XFS_IO_PROG -f -c 'pwrite -S 0x63 0 17000' $subvol2/file3 \
80 echo "Create reflinks to the initial files on other subvolumes"
81 cp --reflink=always $testdir1/file1 $subvol1
82 cp --reflink=always $testdir1/file1 $subvol2
83 cp --reflink=always $subvol1/file2 $testdir1/
84 cp --reflink=always $subvol1/file2 $subvol2
85 cp --reflink=always $subvol2/file3 $testdir1/
86 cp --reflink=always $subvol2/file3 $subvol1
88 echo "Verify the reflinks"
89 _verify_reflink $cross_mount_test_dir/file2 $testdir1/file2
90 _verify_reflink $cross_mount_test_dir/file2 $subvol2/file2
91 _verify_reflink $subvol2/file3 $testdir1/file3
92 _verify_reflink $subvol2/file3 $cross_mount_test_dir/file3
93 echo "Verify the file contents:"
96 echo -e "---\nOverwrite some files with new content"
97 $XFS_IO_PROG -c 'pwrite -S 0x64 0 20' $testdir1/file1 >> $seqres.full
98 $XFS_IO_PROG -c 'pwrite -S 0x66 0 21000' $subvol2/file2 >> $seqres.full
99 $XFS_IO_PROG -c 'pwrite -S 0x65 5000 5000' $cross_mount_test_dir/file3 \
102 echo -n "Verify that non-overwritten reflinks "
103 echo "still have the same data blocks"
104 _verify_reflink $testdir1/file2 $cross_mount_test_dir/file2
105 _verify_reflink $testdir1/file3 $subvol2/file3
106 echo "Verify the file contents:"
109 echo -e "---\nShuffle files between directories"
110 mv $testdir1/file* $testdir2
111 mv $cross_mount_test_dir/file* $testdir1/
112 mv $subvol2/file* $cross_mount_test_dir/
113 mv $testdir2/file* $subvol2/
115 # No _verify_reflink here as data is copied when moving files
117 echo "Verify the file contents:"
120 $UMOUNT_PROG $cross_mount_test_dir