diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index b31d3f3312ce..d73a1c08c3e3 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -51,9 +51,9 @@
 #define _LINUX_PERCPU_REFCOUNT_H
 
 #include <linux/atomic.h>
-#include <linux/kernel.h>
 #include <linux/percpu.h>
 #include <linux/rcupdate.h>
+#include <linux/types.h>
 #include <linux/gfp.h>
 
 struct percpu_ref;
diff --git a/mm/Kconfig b/mm/Kconfig
index 28edafc820ad..356f4f2c779e 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -428,7 +428,7 @@ config THP_SWAP
 # UP and nommu archs use km based percpu allocator
 #
 config NEED_PER_CPU_KM
-	depends on !SMP
+	depends on !SMP || !MMU
 	bool
 	default y