add MCL_ONFAULT and MLOCK_ONFAULT mlockall and mlock2 flags

they lock faulted pages into memory (useful when a small part of a
large mapped file needs efficient access), new in linux v4.4, commit
b0f205c2a3082dd9081f9a94e50658c5fa906ff1

MLOCK_* is not in the POSIX reserved namespace for sys/mman.h

arch/aarch64/bits/mman.h

@@ -36,6 +36,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

arch/arm/bits/mman.h

@@ -37,6 +37,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

arch/i386/bits/mman.h

@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

arch/microblaze/bits/mman.h

@@ -37,6 +37,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

arch/mips/bits/mman.h

@@ -37,6 +37,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

arch/or1k/bits/mman.h

@@ -37,6 +37,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

arch/powerpc/bits/mman.h

@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT     0x2000
 #define MCL_FUTURE      0x4000
+#define MCL_ONFAULT     0x8000
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

arch/sh/bits/mman.h

@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

arch/x32/bits/mman.h

@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

arch/x86_64/bits/mman.h

@@ -38,6 +38,7 @@
 
 #define MCL_CURRENT     1
 #define MCL_FUTURE      2
+#define MCL_ONFAULT     4
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
 #define MADV_NORMAL      0

include/sys/mman.h

@@ -39,6 +39,7 @@ int remap_file_pages (void *, size_t, int, size_t, int);
 #endif
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define MLOCK_ONFAULT   0x01
 int madvise (void *, size_t, int);
 int mincore (void *, size_t, unsigned char *);
 #endif