[v4,2/4] generic: test mmap io fom DAX to non-DAX

Message ID	1492413255-11146-3-git-send-email-xzhou@redhat.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <fstests-owner@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 2D47ED1FF9 From: Xiong Zhou <xzhou@redhat.com> To: fstests@vger.kernel.org Cc: ross.zwisler@linux.intel.com, dan.j.williams@intel.com, jmoyer@redhat.com, eguan@redhat.com, Xiong Zhou <xzhou@redhat.com> Subject: [PATCH v4 2/4] generic: test mmap io fom DAX to non-DAX Date: Mon, 17 Apr 2017 15:14:13 +0800 Message-Id: <1492413255-11146-3-git-send-email-xzhou@redhat.com> In-Reply-To: <1492413255-11146-1-git-send-email-xzhou@redhat.com> References: <1492008380-29164-1-git-send-email-xzhou@redhat.com> <1492413255-11146-1-git-send-email-xzhou@redhat.com> Sender: fstests-owner@vger.kernel.org Precedence: bulk

diff --git a/common/rc b/common/rc index 78a2101..73ac79c 100644 --- a/common/rc +++ b/common/rc @@ -3151,6 +3151,51 @@ _require_chattr() rm -f $TEST_DIR/syscalltest.out } +# Require test/scratch device nvdimm and having specific +# arttibute key/value we need. +# +# This is designed to get attr values of nvdimm persistent +# memory device, by searching sysfs. +# +# Other non-nvdimm or non-persistent-memory devices would +# fail this helper anyway. +# +# So, ONLY use this helper when you REALLY need nvdimm and +# specific attr on it. +# +_require_pmem_key_value() +{ + local dev=${1#/dev/} + local key=$2 + local value=$3 + local region index keyfile dev_value + + # find a filename string contains the region of dev, eg: + # /sys/devices/platform/e820_pmem/ndbus0/region1/\ + # namespace1.0/block/pmem1 + # + region=$(find /sys/ | grep $dev | grep region | head -1) + [ -z "$region" ] && \ + _notrun "requires persistent memory $dev $key $value" + + # get region number index + index=$(expr $region : .*region) + + # find the file for the key, eg: + # /sys/devices/platform/e820_pmem/ndbus0/region1/\ + # namespace1.0/mode + # + keyfile=$(find /sys/ | grep region${region:$index:2} \ + | grep namespace | grep $key) + [ -z "$keyfile" ] && \ + _notrun "requires persistent memory $dev $key $value" + + # get the value and test + dev_value=$(cat $keyfile) + [ "$dev_value" != "$value" ] && \ + _notrun "requires $dev $key $value" +} + _get_total_inode() { if [ -z "$1" ]; then diff --git a/tests/generic/423 b/tests/generic/423 new file mode 100755 index 0000000..73c0b53 --- /dev/null +++ b/tests/generic/423 @@ -0,0 +1,113 @@ +#! /bin/bash +# FS QA Test 423 +# +# mmap direct/buffered io from DAX to non-DAX mountpoints. +# Split from generic/413, only do the DAX to non-DAX part. +# +#----------------------------------------------------------------------- +# Copyright (c) 2017 Red Hat Inc. All Rights Reserved. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write the Free Software Foundation, +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +#----------------------------------------------------------------------- +# + +seq=`basename $0` +seqres=$RESULT_DIR/$seq +echo "QA output created by $seq" + +here=`pwd` +tmp=/tmp/$$ +status=1 # failure is the default! +trap "_cleanup; exit \$status" 0 1 2 3 15 + +_cleanup() +{ + cd / + rm -f $tmp.* +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter + +# remove previous $seqres.full before test +rm -f $seqres.full + +_supported_fs generic +_supported_os Linux +_require_test +_require_scratch_dax +_require_test_program "feature" +_require_test_program "t_mmap_dio" +_require_xfs_io_command "falloc" +_require_pmem_key_value $SCRATCH_DEV "mode" "memory" + +prep_files() +{ + rm -f $SCRATCH_MNT/tf_{s,d} + rm -f $TEST_DIR/tf_{s,d} + + $XFS_IO_PROG -f -c "falloc 0 $tsize" \ + $SCRATCH_MNT/tf_{s,d} >> $seqres.full 2>&1 + $XFS_IO_PROG -f -c "falloc 0 $tsize" \ + $TEST_DIR/tf_{s,d} >> $seqres.full 2>&1 +} + +t_dax_to_nondax() +{ + prep_files + src/t_mmap_dio $SCRATCH_MNT/tf_s \ + $TEST_DIR/tf_d $1 "dio dax to nondax" + + prep_files + src/t_mmap_dio -b $SCRATCH_MNT/tf_s \ + $TEST_DIR/tf_d $1 "buffered dax to nondax" +} + +do_tests() +{ + # less than page size + t_dax_to_nondax 1024 + # page size + t_dax_to_nondax `src/feature -s` + # bigger sizes, for PMD faults + t_dax_to_nondax $((16 * 1024 * 1024)) + t_dax_to_nondax $((64 * 1024 * 1024)) +} + +# make fs 2Mb aligned for PMD fault testing +mkfs_opts="" +if [ "$FSTYP" == "ext4" ]; then + mkfs_opts="-E stride=512,stripe_width=1" +elif [ "$FSTYP" == "xfs" ]; then + mkfs_opts="-d su=2m,sw=1" +fi +_scratch_mkfs "$mkfs_opts" > /dev/null 2>&1 + +# mount SCRATCH_DEV with dax option, TEST_DEV not +export MOUNT_OPTIONS="" +export TEST_FS_MOUNT_OPTS="" +_test_cycle_mount +_fs_options $TEST_DEV | grep -qw "dax" && \ + _notrun "we need $TEST_DEV mount without dax" +_scratch_mount "-o dax" + +tsize=$((128 * 1024 * 1024)) + +do_tests + +# success, all done +echo "Silence is golden" +status=0 +exit diff --git a/tests/generic/423.out b/tests/generic/423.out new file mode 100644 index 0000000..22c4029 --- /dev/null +++ b/tests/generic/423.out @@ -0,0 +1,2 @@ +QA output created by 423 +Silence is golden diff --git a/tests/generic/group b/tests/generic/group index d747385..52553fa 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -425,3 +425,4 @@ 420 auto quick punch 421 auto quick encrypt dangerous 422 auto quick +423 auto quick

[v4,2/4] generic: test mmap io fom DAX to non-DAX

Commit Message

Comments

Patch