#! /bin/bash
# SPDX-License-Identifier: GPL-2.0-only
# Copyright 2021 Red Hat, Inc.
#
# FS QA Test No. 623
#
# Test a write fault scenario on a shutdown fs.
#
. ./common/preamble
_begin_fstest auto quick shutdown

. ./common/filter

_supported_fs generic
_fixed_by_kernel_commit e4826691cc7e \
	"xfs: restore shutdown check in mapped write fault path"

_require_scratch_nocheck
_require_scratch_shutdown

_scratch_mkfs &>> $seqres.full
_scratch_mount

# XFS had a regression where it failed to check shutdown status in the fault
# path. This produced an iomap warning because writeback failure clears Uptodate
# status on the page.
file=$SCRATCH_MNT/file
$XFS_IO_PROG -fc "pwrite 0 4k" -c fsync $file | _filter_xfs_io
ulimit -c 0
$XFS_IO_PROG -x -c "mmap 0 4k" -c "mwrite 0 4k" -c shutdown -c fsync \
	-c "mwrite 0 4k" $file | _filter_xfs_io

# success, all done
status=0
exit