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https://github.com/linux-apfs/apfstests.git
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Darrick J. Wong
0bfb84110b
Add a leading underscore to the get_block_size helper since it's a common function. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eryu Guan <eguan@redhat.com> Signed-off-by: Eryu Guan <eguan@redhat.com>
98 lines
2.8 KiB
Bash
Executable File
98 lines
2.8 KiB
Bash
Executable File
#! /bin/bash
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# FS QA Test No. 336
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#
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# Exercise metadump on realtime rmapbt preservation.
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2016, 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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cd /
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rm -rf "$tmp".* $metadump_file
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_os Linux
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_supported_fs xfs
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_require_realtime
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_require_xfs_scratch_rmapbt
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_require_test_program "punch-alternating"
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_require_xfs_io_command "falloc"
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rm -f "$seqres.full"
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echo "Format and mount"
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_scratch_mkfs | _filter_mkfs 2>$tmp.mkfs >/dev/null
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. $tmp.mkfs
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cat $tmp.mkfs > "$seqres.full" 2>&1
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_scratch_mount
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blksz="$(_get_block_size $SCRATCH_MNT)"
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metadump_file=$TEST_DIR/${seq}_metadump
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rm -rf $metadump_file
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echo "Create a three-level rtrmapbt"
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# inode core size is at least 176 bytes; btree header is 56 bytes;
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# rtrmap record is 32 bytes; and rtrmap key/pointer are 56 bytes.
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i_ptrs=$(( (isize - 176) / 56 ))
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bt_ptrs=$(( (blksz - 56) / 56 ))
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bt_recs=$(( (blksz - 56) / 32 ))
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blocks=$((i_ptrs * bt_ptrs * bt_recs))
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_require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 ))
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len=$((blocks * rtextsz))
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echo "Create big file"
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$XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full
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$XFS_IO_PROG -f -R -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full
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echo "Explode the rtrmapbt"
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./src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full"
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./src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full"
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_scratch_cycle_mount
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echo "Create metadump file"
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_scratch_unmount
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_scratch_metadump $metadump_file
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# Now restore the obfuscated one back and take a look around
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echo "Restore metadump"
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xfs_mdrestore $metadump_file $TEST_DIR/image
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SCRATCH_DEV=$TEST_DIR/image _scratch_mount
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SCRATCH_DEV=$TEST_DIR/image _scratch_unmount
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echo "Check restored fs"
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_check_scratch_fs $TEST_DIR/image
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# success, all done
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status=0
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exit
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