2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2016, Oracle and/or its affiliates. All Rights Reserved.
7 # Create a big enough rmapbt that we tickle a fdblocks accounting bug.
10 seqres="$RESULT_DIR/$seq"
11 echo "QA output created by $seq"
15 status=1 # failure is the default!
16 trap "_cleanup; exit \$status" 0 1 2 3 15
24 # get standard environment, filters and checks
29 # real QA test starts here
33 _require_xfs_scratch_rmapbt
34 _require_scratch_reflink
35 _require_test_program "punch-alternating"
39 echo "+ create scratch fs"
40 _scratch_mkfs > "$seqres.full" 2>&1
42 echo "+ mount fs image"
44 blksz="$(_get_block_size $SCRATCH_MNT)"
46 # btree header is 56 bytes; an rmapbt record is 24 bytes; and
47 # a rmapbt key/pointer pair is 44 bytes.
48 bt_ptrs=$(( (blksz - 56) / 44 ))
49 bt_recs=$(( (blksz - 56) / 24 ))
51 blocks=$((bt_ptrs * bt_recs + 1))
52 # Need (2 * blocks * blksz) bytes for files, and 20% for metadata
53 _require_fs_space $SCRATCH_MNT $(( (2 * blocks * blksz) * 5 / 4096 ))
54 len=$((blocks * blksz))
56 echo "+ make some files"
57 $XFS_IO_PROG -f -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f1 >> $seqres.full
58 $XFS_IO_PROG -f -c "falloc 0 $len" -c "pwrite -S 0x68 -b 1048576 0 $len" $SCRATCH_MNT/f2 >> $seqres.full
59 $here/src/punch-alternating $SCRATCH_MNT/f1 >> "$seqres.full"
60 $here/src/punch-alternating $SCRATCH_MNT/f2 >> "$seqres.full"