| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2020 Facebook All Rights Reserved. |
| # |
| # FS QA Test 604 |
| # |
| # Evicting dirty inodes can take a long time during umount. |
| # Check that a new mount racing with such a delayed umount succeeds. |
| # |
| . ./common/preamble |
| _begin_fstest auto quick mount |
| |
| # Import common functions. |
| . ./common/filter |
| |
| # Overlayfs does not allow mounting over again with the same layers |
| # until umount is fully completed, so is not appropriate for this test. |
| _exclude_fs overlay |
| |
| # Modify as appropriate. |
| _require_scratch |
| |
| _scratch_mkfs > /dev/null 2>&1 |
| _scratch_mount |
| for i in $(seq 0 500); do |
| $XFS_IO_PROG -f -c "pwrite 0 4K" $SCRATCH_MNT/$i >/dev/null |
| done |
| # Delay the mount attempt by a small amount in the hope that the mount() call |
| # will try to lock s_umount /after/ umount has already taken it. |
| _scratch_unmount & |
| sleep 0.01s ; _scratch_mount |
| wait |
| |
| echo "Silence is golden" |
| |
| # success, all done |
| status=0 |
| exit |
