| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2021 Chandan Babu R. All Rights Reserved. |
| # |
| # FS QA Test 531 |
| # |
| # Verify that XFS does not cause inode fork's extent count to overflow when |
| # punching out an extent. |
| 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 -f $tmp.* |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/inject |
| |
| # remove previous $seqres.full before test |
| rm -f $seqres.full |
| |
| # real QA test starts here |
| |
| _supported_fs xfs |
| _require_scratch |
| _require_xfs_debug |
| _require_xfs_io_command "fpunch" |
| _require_xfs_io_command "finsert" |
| _require_xfs_io_command "fcollapse" |
| _require_xfs_io_command "fzero" |
| _require_xfs_io_error_injection "reduce_max_iextents" |
| |
| echo "Format and mount fs" |
| _scratch_mkfs >> $seqres.full |
| _scratch_mount >> $seqres.full |
| |
| bsize=$(_get_file_block_size $SCRATCH_MNT) |
| nr_blks=30 |
| |
| testfile=$SCRATCH_MNT/testfile |
| |
| for op in fpunch finsert fcollapse fzero; do |
| echo "* $op regular file" |
| |
| echo "Create \$testfile" |
| touch $testfile |
| |
| echo "Inject reduce_max_iextents error tag" |
| _scratch_inject_error reduce_max_iextents 1 |
| |
| $XFS_IO_PROG -f -s \ |
| -c "pwrite -b $((nr_blks * bsize)) 0 $((nr_blks * bsize))" \ |
| $testfile >> $seqres.full |
| |
| echo "$op alternating blocks" |
| for i in $(seq 1 2 $((nr_blks - 1))); do |
| $XFS_IO_PROG -f -c "$op $((i * bsize)) $bsize" $testfile \ |
| >> $seqres.full 2>&1 |
| [[ $? != 0 ]] && break |
| done |
| |
| echo "Verify \$testfile's extent count" |
| |
| nextents=$(_xfs_get_fsxattr nextents $testfile) |
| if (( $nextents > 10 )); then |
| echo "Extent count overflow check failed: nextents = $nextents" |
| exit 1 |
| fi |
| |
| echo "Disable reduce_max_iextents error tag" |
| _scratch_inject_error reduce_max_iextents 0 |
| |
| rm $testfile |
| done |
| |
| # success, all done |
| status=0 |
| exit |