[PATCH v7 4/7] generic/413, xfs/260: Improve format operation for PMD fault testing

[Xiao Yang <yangx.jy@cn.fujitsu.com>]

1) Simple code and fix the wrong value of stripe_width by _scratch_mkfs_geom().
2) Get hugepage size by _get_hugepagesize() and replace fixed 2M with
   hugepage size because hugepage size/PMD_SIZE is not 2M on some
   arches(e.g. hugepage size/PMD_SIZE is 512M on arm64).
3) For debugging, redirect the output of mkfs to $seqres.full.

Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 common/rc         | 10 ++++++++++
 tests/generic/413 | 10 ++--------
 tests/xfs/260     |  4 ++--
 3 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/common/rc b/common/rc
index 1e037b4b..856a7ac8 100644
--- a/common/rc
+++ b/common/rc
@@ -170,6 +170,16 @@ _get_filesize()
     stat -c %s "$1"
 }
 
+# Get hugepagesize in bytes
+_get_hugepagesize()
+{
+	local hugepgsz=$(awk '/Hugepagesize/ {print $2}' /proc/meminfo)
+	# Call _notrun if $hugepgsz is not a number
+	echo "$hugepgsz" | egrep -q ^[0-9]+$ || \
+		_notrun "Cannot get the value of Hugepagesize"
+	echo $((hugepgsz * 1024))
+}
+
 _mount()
 {
     $MOUNT_PROG `_mount_ops_filter $*`
diff --git a/tests/generic/413 b/tests/generic/413
index 19e1b926..dfe2912b 100755
--- a/tests/generic/413
+++ b/tests/generic/413
@@ -111,14 +111,8 @@ do_tests()
 	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
+# make fs aligned for PMD fault testing
+_scratch_mkfs_geom $(_get_hugepagesize) 1 >> $seqres.full 2>&1
 
 # mount SCRATCH_DEV with dax option, TEST_DEV not
 export MOUNT_OPTIONS=""
diff --git a/tests/xfs/260 b/tests/xfs/260
index bcdc6041..81b42f01 100755
--- a/tests/xfs/260
+++ b/tests/xfs/260
@@ -121,8 +121,8 @@ do_tests()
 	t_dax_flag_mmap_dio $((64 * 1024 * 1024))
 }
 
-# make xfs 2Mb aligned for PMD fault testing
-_scratch_mkfs "-d su=2m,sw=1" > /dev/null 2>&1
+# make xfs aligned for PMD fault testing
+_scratch_mkfs_geom $(_get_hugepagesize) 1 >> $seqres.full 2>&1
 
 # mount with dax option
 _scratch_mount "-o dax"
-- 
2.21.0