| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (C) 2017 SUSE Linux Products GmbH. All Rights Reserved. |
| # |
| # FS QA Test No. generic/422 |
| # |
| # Test that a filesystem's implementation of the stat(2) system call reports |
| # correct values for the number of blocks allocated for a file when there are |
| # delayed allocations. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick |
| |
| # Import common functions. |
| . ./common/filter |
| |
| # real QA test starts here |
| _supported_fs generic |
| _require_test |
| _require_scratch |
| _require_xfs_io_command "falloc" "-k" |
| _require_odirect |
| |
| _scratch_mkfs >>$seqres.full 2>&1 |
| _scratch_mount |
| |
| $XFS_IO_PROG -f -c "pwrite -S 0xaa 0 64K" $SCRATCH_MNT/foo1 | _filter_xfs_io |
| $XFS_IO_PROG -f \ |
| -c "pwrite -S 0xaa 0 64K" \ |
| -c "truncate 128K" \ |
| $SCRATCH_MNT/foo2 | _filter_xfs_io |
| $XFS_IO_PROG -f \ |
| -c "falloc -k 0 128K" \ |
| -c "pwrite -S 0xaa 0 64K" \ |
| $SCRATCH_MNT/foo3 | _filter_xfs_io |
| touch $SCRATCH_MNT/foo4 |
| |
| # Make sure everything done so far is durably persisted. |
| sync |
| |
| # Now overwrite the extent of the first file. |
| $XFS_IO_PROG -c "pwrite -S 0xff 0 64K" $SCRATCH_MNT/foo1 | _filter_xfs_io |
| |
| # Write to a hole of the second file. |
| $XFS_IO_PROG -c "pwrite -S 0xff 64K 64K" $SCRATCH_MNT/foo2 | _filter_xfs_io |
| # Write again to the same location, just to test that the fs will not account |
| # the same write twice. |
| $XFS_IO_PROG -c "pwrite -S 0x20 64K 64K" $SCRATCH_MNT/foo2 | _filter_xfs_io |
| |
| # Write beyond eof of the third file into the pre-allocated extent. |
| $XFS_IO_PROG -c "pwrite -S 0xff 64K 64K" $SCRATCH_MNT/foo3 | _filter_xfs_io |
| |
| # Do a buffered write immediately followed by a direct IO write, without a |
| # fsync in between, just to test that page invalidation does not lead to an |
| # incorrect number of file blocks reported. |
| $XFS_IO_PROG -c "pwrite -S 0xab 0 64K" $SCRATCH_MNT/foo4 | _filter_xfs_io |
| $XFS_IO_PROG -d -c "pwrite -S 0xef 0 64K" $SCRATCH_MNT/foo4 | _filter_xfs_io |
| |
| space_used() { |
| echo "Space used by file foo1:" |
| du -h $SCRATCH_MNT/foo1 | _filter_scratch |
| |
| echo "Space used by file foo2:" |
| du -h $SCRATCH_MNT/foo2 | _filter_scratch |
| |
| echo "Space used by file foo3:" |
| du -h $SCRATCH_MNT/foo3 | _filter_scratch |
| |
| echo "Space used by file foo4:" |
| du -h $SCRATCH_MNT/foo4 | _filter_scratch |
| } |
| |
| space_used > $SCRATCH_MNT/$seq.before |
| ( |
| echo |
| echo "Before writeback" |
| echo |
| |
| cat $SCRATCH_MNT/$seq.before |
| ) >> $seqres.full |
| |
| sync |
| |
| # We expect the same file sizes reported by 'du' after writeback finishes. |
| |
| space_used > $SCRATCH_MNT/$seq.after |
| ( |
| echo |
| echo "After writeback" |
| echo |
| |
| cat $SCRATCH_MNT/$seq.after |
| ) >> $seqres.full |
| |
| if diff -q $SCRATCH_MNT/$seq.before $SCRATCH_MNT/$seq.after; then |
| echo "Space used before and after writeback is equal" |
| fi |
| |
| status=0 |
| exit |