mm: mlock: add mlock flags to enable VM_LOCKONFAULT usage

[firefly-linux-kernel-4.4.55.git] / arch / xtensa / include / uapi / asm / mman.h

diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0e0446e84d2ee27d1f8bcd5a050c42344c..360944e1da52a0f31572a423a72a16a33fc86537 100644 (file)
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -74,6 +74,12 @@
  */
 #define MCL_CURRENT    1               /* lock all current mappings */
 #define MCL_FUTURE     2               /* lock all future mappings */
+#define MCL_ONFAULT    4               /* lock all pages that are faulted in */
+
+/*
+ * Flags for mlock
+ */
+#define MLOCK_ONFAULT  0x01            /* Lock pages in range after they are faulted in, do not prefault */
 
 #define MADV_NORMAL    0               /* no further special treatment */
 #define MADV_RANDOM    1               /* expect random page references */