check: Remount file system if MOUNT_OPTIONS changed

When MOUNT_OPTIONS change we should remount TEST_DEV to put the changes
in effect. This will allow us to have different MOUNT_OPTIONS in sections
in configuration file.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

README.config-sections

@@ -36,6 +36,14 @@ For every section xfstests will run with specified options and will produce
 separate results in the '$RESULT_BASE/$section_name' directory.
 
 
+Different mount options
+-----------------------
+
+Specifying different mount options in difference config sections is allowed.
+When MOUNT_OPTIONS differs in the following section TEST_DEV will be remounted
+with new MOUNT_OPTIONS automatically before running the test.
+
+
 Multiple file systems
 ---------------------
 

check

@@ -394,6 +394,7 @@ fi
 
 for section in $HOST_OPTIONS_SECTIONS; do
 	OLD_FSTYP=$FSTYP
+	OLD_MOUNT_OPTIONS=$MOUNT_OPTIONS
 	get_next_config $section
 
 	mkdir -p $RESULT_BASE
@@ -422,6 +423,13 @@ for section in $HOST_OPTIONS_SECTIONS; do
 			exit 1
 		fi
 		_prepare_test_list
+	elif [ "$OLD_MOUNT_OPTIONS" != "$MOUNT_OPTIONS" ]; then
+		umount $TEST_DEV 2> /dev/null
+		out=`_mount_or_remount_rw "$MOUNT_OPTIONS" $TEST_DEV $TEST_DIR`
+		if [ $? -ne 1 ]; then
+			echo $out
+			exit 1
+		fi
 	fi
 
 	init_rc