| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (C) 2015 SUSE Linux Products GmbH. All Rights Reserved. |
| # |
| # FS QA Test No. 071 |
| # |
| # Test extent pre-allocation (using fallocate) into a region that already has a |
| # pre-allocated extent that ends beyond the file's size. Verify that if the fs |
| # is unmounted immediately after, the file's size and content are not lost. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick prealloc |
| |
| # Import common functions. |
| . ./common/filter |
| |
| _require_scratch |
| _require_xfs_io_command "falloc" "-k" |
| |
| _scratch_mkfs >> $seqres.full 2>&1 |
| _scratch_mount |
| |
| # Create our test file with a pre-allocated extent that doesn't increase the |
| # file's size. |
| $XFS_IO_PROG -f -c "falloc -k 0 1M" $SCRATCH_MNT/foo |
| |
| # Write some data to our file. |
| $XFS_IO_PROG -c "pwrite -S 0xaa 0 256K" $SCRATCH_MNT/foo | _filter_xfs_io |
| |
| # Now call fallocate again, but allowing it to increase the file's size and |
| # cover a range that is entirely covered by the extent that we previously |
| # pre-allocated. |
| $XFS_IO_PROG -c "falloc 0 512K" $SCRATCH_MNT/foo |
| |
| # Now ummount and mount again the fs. After this we expect the file's size to |
| # be 512Kb. |
| _scratch_cycle_mount |
| |
| # Now check that all data we wrote before are available and the file size is |
| # 512Kb. |
| echo "File content after remount:" |
| od -t x1 $SCRATCH_MNT/foo |
| |
| status=0 |
| exit |
