| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (C) 2020 SUSE Linux Products GmbH. All Rights Reserved. |
| # |
| # FS QA Test No. 614 |
| # |
| # Test that after doing a memory mapped write to an empty file, a call to |
| # stat(2) reports a non-zero number of used blocks. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick rw |
| |
| # Import common functions. |
| . ./common/filter |
| |
| _require_scratch |
| _require_scratch_delalloc |
| |
| _scratch_mkfs >>$seqres.full 2>&1 |
| _scratch_mount |
| |
| $XFS_IO_PROG -f -c "truncate 64K" \ |
| -c "mmap -w 0 64K" \ |
| -c "mwrite -S 0xab 0 64K" \ |
| -c "munmap" \ |
| $SCRATCH_MNT/foobar | _filter_xfs_io |
| |
| blocks_used=$(stat -c %b $SCRATCH_MNT/foobar) |
| if [ $blocks_used -eq 0 ]; then |
| echo "error: stat(2) reported 0 used blocks" |
| fi |
| |
| echo "Silence is golden" |
| |
| status=0 |
| exit |
