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apfstests/tests/generic/470
T
Brian Foster de928c8e88 common/dmlogwrites: genericize log writes target device
The dm-log-writes infrastructure is currently implemented to use
SCRATCH_DEV as a hardcoded data device. In preparation to allow use
of specialized devices in certain circumstances, genericize the code
to allow an arbitrary data device. This requires passing the target
device as a parameter to several helper functions from various
tests. No functional changes.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
2019-03-02 19:39:00 +08:00

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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2017 Intel Corporation. All Rights Reserved.
#
# FS QA Test No. 470
#
# Use dm-log-writes to verify that MAP_SYNC actually syncs metadata during
# page faults.
#
seq=`basename $0`
seqres=$RESULT_DIR/$seq
echo "QA output created by $seq"
tmp=/tmp/$$
here=`pwd`
status=1 # failure is the default!
trap "_cleanup; exit \$status" 0 1 2 3 15
_cleanup()
{
cd /
_log_writes_cleanup
rm -f $tmp.*
}
# get standard environment, filters and checks
. ./common/rc
. ./common/filter
. ./common/dmlogwrites
# remove previous $seqres.full before test
rm -f $seqres.full
# real QA test starts here
_supported_fs generic
_supported_os Linux
_require_scratch
_require_log_writes_dax
_require_xfs_io_command "mmap" "-S"
_require_xfs_io_command "log_writes"
_log_writes_init $SCRATCH_DEV
_log_writes_mkfs >> $seqres.full 2>&1
_log_writes_mount -o dax
LEN=$((1024 * 1024)) # 1 MiB
$XFS_IO_PROG -t -c "truncate $LEN" -c "mmap -S 0 $LEN" -c "mwrite 0 $LEN" \
-c "log_writes -d $LOGWRITES_NAME -m preunmap" \
-f $SCRATCH_MNT/test
# Unmount the scratch dir and tear down the log writes target
_log_writes_unmount
_log_writes_remove
_check_scratch_fs
# destroy previous filesystem so we can be sure our rebuild works
_scratch_mkfs >> $seqres.full 2>&1
# check pre-unmap state
_log_writes_replay_log preunmap $SCRATCH_DEV
_scratch_mount
# We should see $SCRATCH_MNT/test as having 1 MiB in block allocations
du -sh $SCRATCH_MNT/test | _filter_scratch | _filter_spaces
status=0
exit