| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2017 Chengguang Xu <cgxu519@icloud.com> |
| # |
| # FS QA Test 474 |
| # |
| # Inspired by syncfs bug of overlayfs which does not sync dirty inodes in |
| # underlying filesystem. |
| # |
| # Create a small file then run syncfs and shutdown filesystem(or underlying |
| # filesystem of overlayfs) to check syncfs result. |
| # |
| # Test will be skipped if filesystem(or underlying filesystem of overlayfs) |
| # does not support shutdown. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick shutdown metadata |
| |
| status=0 |
| |
| # Import common functions. |
| . ./common/filter |
| |
| # real QA test starts here |
| |
| _supported_fs generic |
| _require_fssum |
| _require_scratch |
| _require_scratch_shutdown |
| _require_xfs_io_command "syncfs" |
| |
| _scratch_mkfs >/dev/null 2>&1 |
| _scratch_mount |
| |
| # Background writeback will flush dirty inode by dirty ratio and dirty time |
| # period(default 30 seconds), in order to avoid interference from it, |
| # run sync before test to make all dirty inodes clean, and it also |
| # accelerates syncfs on testing filesystem so that test case can finish |
| # in 30 seconds. |
| |
| sync |
| |
| # Large fs has a huge size .use_space file, will take long time on running |
| # fssum $SCRATCH_MNT. So change the target path to a sub-dir of $SCRATCH_MNT. |
| localdir=$SCRATCH_MNT/dir |
| mkdir $localdir |
| $XFS_IO_PROG -f -c "pwrite 0 4K" $localdir/testfile >/dev/null 2>&1 |
| |
| # fssum used for comparing checksum of test file(data & metedata), |
| # exclude checking about atime, block structure, open error. |
| $FSSUM_PROG -ugomAcdES -f -w $tmp.fssum $localdir |
| $XFS_IO_PROG -c "syncfs" $localdir/testfile >/dev/null 2>&1 |
| _scratch_shutdown |
| _scratch_cycle_mount |
| $FSSUM_PROG -r $tmp.fssum $localdir |
| |
| exit |
