4 # Create a big enough rmapbt that we tickle a fdblocks accounting bug.
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9 # This program is free software; you can redistribute it and/or
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 #-----------------------------------------------------------------------
24 seqres="$RESULT_DIR/$seq"
25 echo "QA output created by $seq"
29 status=1 # failure is the default!
30 trap "_cleanup; exit \$status" 0 1 2 3 15
38 # get standard environment, filters and checks
43 # real QA test starts here
47 _require_xfs_scratch_rmapbt
48 _require_scratch_reflink
49 _require_test_program "punch-alternating"
53 echo "+ create scratch fs"
54 _scratch_mkfs > "$seqres.full" 2>&1
56 echo "+ mount fs image"
58 blksz="$(_get_block_size $SCRATCH_MNT)"
60 # btree header is 56 bytes; an rmapbt record is 24 bytes; and
61 # a rmapbt key/pointer pair is 44 bytes.
62 bt_ptrs=$(( (blksz - 56) / 44 ))
63 bt_recs=$(( (blksz - 56) / 24 ))
65 blocks=$((bt_ptrs * bt_recs + 1))
66 # Need (2 * blocks * blksz) bytes for files, and 20% for metadata
67 _require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 ))
68 len=$((blocks * blksz))
70 echo "+ make some files"
71 $XFS_IO_PROG -f -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full
72 $XFS_IO_PROG -f -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full
73 ./src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full"
74 ./src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full"