With new kernel(e.g. v5.8-rc1), statx() can be used to qurey S_DAX flag on regular file, so add a test to verify the feature. Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=712b2698e4c024b561694cbcc1abba13eb0fd9ce Signed-off-by: Xiao Yang <yangx.jy@xxxxxxxxxxxxxx> Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx> Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> --- tests/generic/604 | 100 ++++++++++++++++++++++++++++++++++++++++++ tests/generic/604.out | 2 + tests/generic/group | 1 + 3 files changed, 103 insertions(+) create mode 100644 tests/generic/604 create mode 100644 tests/generic/604.out diff --git a/tests/generic/604 b/tests/generic/604 new file mode 100644 index 00000000..22779f76 --- /dev/null +++ b/tests/generic/604 @@ -0,0 +1,100 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2020 Fujitsu. All Rights Reserved. +# +# FS QA Test 604 +# +# By the following cases, verify if statx() can query S_DAX flag +# on regular file correctly. +# 1) With dax=always option, FS_XFLAG_DAX is ignored and S_DAX flag +# always exists on regular file. +# 2) With dax=inode option, setting/clearing FS_XFLAG_DAX can change +# S_DAX flag on regular file. +# 3) With dax=never option, FS_XFLAG_DAX is ignored and S_DAX flag +# never exists on regular file. +# +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 $seqres.full + +_supported_fs generic +_supported_os Linux +_require_scratch_dax_mountopt "dax=always" +_require_dax_iflag +_require_xfs_io_command "statx" "-r" + +PARENT_DIR=$SCRATCH_MNT/testdir +TEST_FILE=$PARENT_DIR/testfile + +check_s_dax() +{ + local exp_s_dax=$1 + + local attributes=$($XFS_IO_PROG -c 'statx -r' $TEST_FILE | awk '/stat.attributes / { print $3 }') + if [ $exp_s_dax -eq 0 ]; then + (( attributes & 0x2000 )) && echo "$TEST_FILE has unexpected S_DAX flag" + else + (( attributes & 0x2000 )) || echo "$TEST_FILE doen't have expected S_DAX flag" + fi +} + +test_s_dax() +{ + local dax_option=$1 + local exp_s_dax1=$2 + local exp_s_dax2=$3 + + # Mount with specified dax option + _scratch_mount "-o $dax_option" + + # Prepare directory + mkdir -p $PARENT_DIR + + rm -f $TEST_FILE + $XFS_IO_PROG -c "chattr +x" $PARENT_DIR + touch $TEST_FILE + # Check if setting FS_XFLAG_DAX changes S_DAX flag + check_s_dax $exp_s_dax1 + + rm -f $TEST_FILE + $XFS_IO_PROG -c "chattr -x" $PARENT_DIR + touch $TEST_FILE + # Check if clearing FS_XFLAG_DAX changes S_DAX flag + check_s_dax $exp_s_dax2 + + _scratch_unmount +} + +do_tests() +{ + _scratch_mkfs >> $seqres.full 2>&1 + + test_s_dax "dax=always" 1 1 + test_s_dax "dax=inode" 1 0 + test_s_dax "dax=never" 0 0 +} + +do_tests + +# success, all done +echo "Silence is golden" +status=0 +exit diff --git a/tests/generic/604.out b/tests/generic/604.out new file mode 100644 index 00000000..c06a1c7f --- /dev/null +++ b/tests/generic/604.out @@ -0,0 +1,2 @@ +QA output created by 604 +Silence is golden diff --git a/tests/generic/group b/tests/generic/group index 1d0d5606..676e0d2e 100644 --- a/tests/generic/group +++ b/tests/generic/group @@ -606,3 +606,4 @@ 601 auto quick quota 602 auto quick encrypt 603 auto attr quick dax +604 auto attr quick dax -- 2.21.0
