From f438604bd954457805cc2aeaa015c00d5dbabc71 Mon Sep 17 00:00:00 2001 From: Xiong Zhou Date: Wed, 8 Feb 2017 12:11:18 +0800 Subject: [PATCH] generic: test mmap io through DAX and non-DAX Mount TEST_DEV as non-DAX, SCRATCH_DEV as DAX, then do some IO between them. In this case we use mmap and dio/buffered IO read/write test programme. Signed-off-by: Ross Zwisler Signed-off-by: Xiong Zhou Reviewed-by: Eryu Guan Signed-off-by: Eryu Guan --- tests/generic/413 | 153 ++++++++++++++++++++++++++++++++++++++++++ tests/generic/413.out | 2 + tests/generic/group | 1 + 3 files changed, 156 insertions(+) create mode 100755 tests/generic/413 create mode 100644 tests/generic/413.out diff --git a/tests/generic/413 b/tests/generic/413 new file mode 100755 index 00000000..a1cc5144 --- /dev/null +++ b/tests/generic/413 @@ -0,0 +1,153 @@ +#! /bin/bash +# FS QA Test 413 +# +# mmap direct/buffered io between DAX and non-DAX mountpoints. +# +#----------------------------------------------------------------------- +# 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" + +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_both_dax() +{ + prep_files + # with O_DIRECT first + src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} $1 "dio both dax" + + prep_files + # again with buffered IO + src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \ + $1 "buffered both dax" +} + +t_nondax_to_dax() +{ + prep_files + src/t_mmap_dio $TEST_DIR/tf_s \ + $SCRATCH_MNT/tf_d $1 "dio nondax to dax" + + prep_files + src/t_mmap_dio -b $TEST_DIR/tf_s \ + $SCRATCH_MNT/tf_d $1 "buffered nondax to dax" +} + +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" +} + +t_both_nondax() +{ + prep_files + src/t_mmap_dio $TEST_DIR/tf_{s,d} $1 "dio both nondax" + + prep_files + src/t_mmap_dio -b $TEST_DIR/tf_{s,d} \ + $1 "buffered both nondax" +} + +# $1 mmap read/write size +t_mmap_dio_dax() +{ + t_both_dax $1 + t_dax_to_nondax $1 + t_nondax_to_dax $1 + t_both_nondax $1 +} + +do_tests() +{ + # less than page size + t_mmap_dio_dax 1024 + # page size + t_mmap_dio_dax `src/feature -s` + # bigger sizes, for PMD faults + t_mmap_dio_dax $((16 * 1024 * 1024)) + t_mmap_dio_dax $((64 * 1024 * 1024)) +} + +# make fs 2Mb aligned for PMD fault testing +mkfs_opts="" +if [ "$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/413.out b/tests/generic/413.out new file mode 100644 index 00000000..098c3e87 --- /dev/null +++ b/tests/generic/413.out @@ -0,0 +1,2 @@ +QA output created by 413 +Silence is golden diff --git a/tests/generic/group b/tests/generic/group index f868ea87..6fd5bcd2 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -415,3 +415,4 @@ 410 auto quick mount 411 auto quick mount 412 auto quick metadata +413 auto quick -- 2.39.5