2016-09-29 19:23:47 -07:00
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#! /bin/bash
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2016-10-08 14:02:04 +08:00
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# FS QA Test No. 331
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2016-09-29 19:23:47 -07:00
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#
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# Create a big enough rmapbt that we tickle a fdblocks accounting bug.
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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 "$tmp".*
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}
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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. ./common/reflink
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# real QA test starts here
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_supported_os Linux
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_supported_fs xfs
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_require_scratch
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_require_xfs_scratch_rmapbt
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_require_scratch_reflink
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_require_test_program "punch-alternating"
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rm -f "$seqres.full"
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echo "+ create scratch fs"
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_scratch_mkfs > "$seqres.full" 2>&1
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echo "+ mount fs image"
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_scratch_mount
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2017-01-04 17:04:48 -08:00
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blksz="$(_get_block_size $SCRATCH_MNT)"
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2016-09-29 19:23:47 -07:00
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# btree header is 56 bytes; an rmapbt record is 24 bytes; and
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# a rmapbt key/pointer pair is 44 bytes.
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bt_ptrs=$(( (blksz - 56) / 44 ))
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bt_recs=$(( (blksz - 56) / 24 ))
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blocks=$((bt_ptrs * bt_recs + 1))
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# Need (2 * blocks * blksz) bytes for files, and 20% for metadata
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_require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 ))
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len=$((blocks * blksz))
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echo "+ make some files"
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$XFS_IO_PROG -f -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 -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full
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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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# success, all done
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status=0
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exit
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