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|
#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2017 Red Hat Inc. All Rights Reserved.
#
# FS QA Test 605
#
# Test per-inode DAX flag by mmap direct/buffered IO.
#
. ./common/preamble
_begin_fstest auto attr quick dax prealloc
# Import common functions.
. ./common/filter
_supported_fs generic
_require_hugepages
_require_scratch_dax_mountopt "dax=always"
_require_test_program "feature"
_require_test_program "t_mmap_dio"
_require_dax_iflag
_require_xfs_io_command "falloc"
SRC_DIR=$SCRATCH_MNT/src
SRC_FILE=$SRC_DIR/tf_s
DST_DIR=$SCRATCH_MNT/dst
DST_FILE=$DST_DIR/tf_d
prep_directories()
{
mkdir -p $SRC_DIR $DST_DIR
}
prep_files()
{
rm -f $SRC_FILE $DST_FILE
$XFS_IO_PROG -f -c "falloc 0 $tsize" \
$SRC_FILE $DST_FILE >> $seqres.full 2>&1
}
t_both_dax()
{
$XFS_IO_PROG -c "chattr +x" $SRC_DIR $DST_DIR
prep_files
# with O_DIRECT first
$here/src/t_mmap_dio $SRC_FILE $DST_FILE \
$1 "dio both dax"
prep_files
# again with buffered IO
$here/src/t_mmap_dio -b $SRC_FILE $DST_FILE \
$1 "buffered both dax"
}
t_nondax_to_dax()
{
$XFS_IO_PROG -c "chattr -x" $SRC_DIR
$XFS_IO_PROG -c "chattr +x" $DST_DIR
prep_files
$here/src/t_mmap_dio $SRC_FILE $DST_FILE \
$1 "dio nondax to dax"
prep_files
$here/src/t_mmap_dio -b $SRC_FILE $DST_FILE \
$1 "buffered nondax to dax"
}
t_dax_to_nondax()
{
$XFS_IO_PROG -c "chattr +x" $SRC_DIR
$XFS_IO_PROG -c "chattr -x" $DST_DIR
prep_files
$here/src/t_mmap_dio $SRC_FILE $DST_FILE \
$1 "dio dax to nondax"
prep_files
$here/src/t_mmap_dio -b $SRC_FILE $DST_FILE \
$1 "buffered dax to nondax"
}
t_both_nondax()
{
$XFS_IO_PROG -c "chattr -x" $SRC_DIR $DST_DIR
prep_files
$here/src/t_mmap_dio $SRC_FILE $DST_FILE \
$1 "dio both nondax"
prep_files
$here/src/t_mmap_dio -b $SRC_FILE $DST_FILE \
$1 "buffered both nondax"
}
# $1 mmap read/write size
t_dax_flag_mmap_dio()
{
t_both_dax $1
t_dax_to_nondax $1
t_nondax_to_dax $1
t_both_nondax $1
}
do_tests()
{
local mount_option=$1
_scratch_mount "$mount_option"
prep_directories
# less than page size
t_dax_flag_mmap_dio 1024
# page size
t_dax_flag_mmap_dio `$here/src/feature -s`
# bigger sizes, for PMD faults
t_dax_flag_mmap_dio $((16 * 1024 * 1024))
t_dax_flag_mmap_dio $((64 * 1024 * 1024))
_scratch_unmount
}
# make xfs aligned for PMD fault testing
_scratch_mkfs_geom $(_get_hugepagesize) 1 >> $seqres.full 2>&1
tsize=$((128 * 1024 * 1024))
# mount with dax=inode option
do_tests "-o dax=inode"
# mount without dax option
export MOUNT_OPTIONS=""
do_tests
# success, all done
echo "Silence is golden"
status=0
exit
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