_require_scratch
_require_no_large_scratch_dev
+# mkfs cannot create a filesystem with protofiles if realtime is enabled, so
+# don't run this test if the rtinherit is anywhere in the mkfs options.
+echo "$MKFS_OPTIONS" | grep -q "rtinherit" && \
+ _notrun "Cannot mkfs with a protofile and -d rtinherit."
+
# sanity test - default + one root directory entry
# Note: must do this proto/mkfs now for later inode size calcs
_create_proto 0