| #! /bin/bash |
| # FS QA Test No. 336 |
| # |
| # Exercise metadump on realtime rmapbt preservation. |
| # |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it would be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| #----------------------------------------------------------------------- |
| |
| seq=`basename "$0"` |
| seqres="$RESULT_DIR/$seq" |
| echo "QA output created by $seq" |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| _cleanup() |
| { |
| cd / |
| rm -rf "$tmp".* $metadump_file |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_os Linux |
| _supported_fs xfs |
| _require_realtime |
| _require_xfs_scratch_rmapbt |
| _require_test_program "punch-alternating" |
| _require_xfs_io_command "falloc" |
| |
| rm -f "$seqres.full" |
| |
| echo "Format and mount" |
| _scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null |
| . $tmp.mkfs |
| cat $tmp.mkfs > "$seqres.full" 2>&1 |
| _scratch_mount |
| blksz="$(_get_block_size $SCRATCH_MNT)" |
| |
| metadump_file=$TEST_DIR/${seq}_metadump |
| rm -rf $metadump_file |
| |
| echo "Create a three-level rtrmapbt" |
| # inode core size is at least 176 bytes; btree header is 56 bytes; |
| # rtrmap record is 32 bytes; and rtrmap key/pointer are 56 bytes. |
| i_ptrs=$(( (isize - 176) / 56 )) |
| bt_ptrs=$(( (blksz - 56) / 56 )) |
| bt_recs=$(( (blksz - 56) / 32 )) |
| |
| blocks=$((i_ptrs * bt_ptrs * bt_recs)) |
| _require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 )) |
| len=$((blocks * rtextsz)) |
| |
| echo "Create big file" |
| $XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full |
| $XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full |
| |
| echo "Explode the rtrmapbt" |
| ./src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full" |
| ./src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full" |
| _scratch_cycle_mount |
| |
| echo "Create metadump file" |
| _scratch_unmount |
| _scratch_metadump $metadump_file |
| |
| # Now restore the obfuscated one back and take a look around |
| echo "Restore metadump" |
| xfs_mdrestore $metadump_file $TEST_DIR/image |
| SCRATCH_DEV=$TEST_DIR/image _scratch_mount |
| SCRATCH_DEV=$TEST_DIR/image _scratch_unmount |
| |
| echo "Check restored fs" |
| _check_scratch_fs $TEST_DIR/image |
| |
| # success, all done |
| status=0 |
| exit |