| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2018 Intel Corporation. All Rights Reserved. |
| # |
| # FS QA Test No. 503 |
| # |
| # This is a regression test for kernel patch: |
| # ext4: handle layout changes to pinned DAX mapping |
| # |
| # This test exercises each of the DAX paths in ext4 which remove blocks from |
| # an inode's block map. This includes things like hole punch, truncate down, |
| # etc. This test was written to regression test errors seen with an ext4 + |
| # DAX setup, but the test runs fine with or without DAX and with XFS so we |
| # don't require the DAX mount option or a specific filesystem for the test. |
| |
| . ./common/preamble |
| _begin_fstest auto quick dax punch collapse zero |
| |
| # Import common functions. |
| . ./common/filter |
| |
| # Modify as appropriate. |
| _supported_fs generic |
| _require_test |
| _require_scratch |
| _require_test_program "t_mmap_collision" |
| _require_xfs_io_command "falloc" |
| _require_xfs_io_command "fpunch" |
| _require_xfs_io_command "fcollapse" |
| _require_xfs_io_command "fzero" |
| |
| _scratch_mkfs >> $seqres.full 2>&1 |
| # To get the failure we turn off DAX on our SCRATCH_MNT so we can get O_DIRECT |
| # behavior. We will continue to use unmodified mount options for the test |
| # TEST_DIR. The failures fixed by the above mentioned kernel patch trigger |
| # when those mount options include "-o dax", but the test runs fine without |
| # that option so we don't require it. |
| export MOUNT_OPTIONS="" |
| _scratch_mount >> $seqres.full 2>&1 |
| |
| blksize=$(_get_file_block_size $SCRATCH_MNT) |
| test $blksize -eq $(getconf PAGE_SIZE) || \ |
| _notrun "file block size must match page size" |
| |
| # real QA test starts here |
| $here/src/t_mmap_collision $TEST_DIR/testfile $SCRATCH_MNT/testfile |
| |
| # success, all done |
| echo "Silence is golden" |
| status=0 |
| exit |
