2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
7 # Exercise metadump on realtime rmapbt preservation.
10 _begin_fstest auto rmap realtime
12 # Override the default cleanup function.
16 rm -rf "$tmp".* $metadump_file
19 # Import common functions.
22 # real QA test starts here
25 _require_xfs_scratch_rmapbt
26 _require_test_program "punch-alternating"
27 _require_xfs_io_command "falloc"
31 echo "Format and mount"
32 _scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
34 cat $tmp.mkfs > "$seqres.full" 2>&1
36 blksz="$(_get_file_block_size $SCRATCH_MNT)"
38 metadump_file=$TEST_DIR/${seq}_metadump
41 echo "Create a three-level rtrmapbt"
42 # inode core size is at least 176 bytes; btree header is 56 bytes;
43 # rtrmap record is 32 bytes; and rtrmap key/pointer are 56 bytes.
44 i_ptrs=$(( (isize - 176) / 56 ))
45 bt_ptrs=$(( (blksz - 56) / 56 ))
46 bt_recs=$(( (blksz - 56) / 32 ))
48 blocks=$((i_ptrs * bt_ptrs * bt_recs))
49 _require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 ))
50 len=$((blocks * rtextsz))
52 echo "Create big file"
53 $XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full
54 $XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full
56 echo "Explode the rtrmapbt"
57 $here/src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full"
58 $here/src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full"
61 echo "Create metadump file"
63 _scratch_xfs_metadump $metadump_file
65 # Now restore the obfuscated one back and take a look around
66 echo "Restore metadump"
67 xfs_mdrestore $metadump_file $TEST_DIR/image
68 SCRATCH_DEV=$TEST_DIR/image _scratch_mount
69 SCRATCH_DEV=$TEST_DIR/image _scratch_unmount
71 echo "Check restored fs"
72 _check_scratch_fs $TEST_DIR/image