| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2017 Red Hat Inc. All Rights Reserved. |
| # |
| # FS QA Test 413 |
| # |
| # mmap direct/buffered io between DAX and non-DAX mountpoints. |
| # |
| 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_mountopt "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 |
| $here/src/t_mmap_dio $SCRATCH_MNT/tf_{s,d} $1 "dio both dax" |
| |
| prep_files |
| # again with buffered IO |
| $here/src/t_mmap_dio -b $SCRATCH_MNT/tf_{s,d} \ |
| $1 "buffered both dax" |
| } |
| |
| t_nondax_to_dax() |
| { |
| prep_files |
| $here/src/t_mmap_dio $TEST_DIR/tf_s \ |
| $SCRATCH_MNT/tf_d $1 "dio nondax to dax" |
| |
| prep_files |
| $here/src/t_mmap_dio -b $TEST_DIR/tf_s \ |
| $SCRATCH_MNT/tf_d $1 "buffered nondax to dax" |
| } |
| |
| t_dax_to_nondax() |
| { |
| prep_files |
| $here/src/t_mmap_dio $SCRATCH_MNT/tf_s \ |
| $TEST_DIR/tf_d $1 "dio dax to nondax" |
| |
| prep_files |
| $here/src/t_mmap_dio -b $SCRATCH_MNT/tf_s \ |
| $TEST_DIR/tf_d $1 "buffered dax to nondax" |
| } |
| |
| t_both_nondax() |
| { |
| prep_files |
| $here/src/t_mmap_dio $TEST_DIR/tf_{s,d} $1 "dio both nondax" |
| |
| prep_files |
| $here/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 $1 |
| } |
| |
| do_tests() |
| { |
| # less than page size |
| t_mmap_dio_dax 1024 |
| # page size |
| t_mmap_dio_dax `$here/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 |