diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index a56e608..1d09392 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -3,7 +3,7 @@
 
 #include <uapi/asm/unistd.h>
 
-#define NR_SYSCALLS			514
+#define NR_SYSCALLS			517
 
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_STAT64
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 0086b47..ec72436 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -38,6 +38,8 @@
 #define MCL_CURRENT	 8192		/* lock all currently mapped pages */
 #define MCL_FUTURE	16384		/* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 9b62e3f..04d1cce 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -532,6 +532,9 @@ sys_call_table:
 	.quad sys_getrandom
 	.quad sys_memfd_create
 	.quad sys_execveat
+	.quad sys_mlock2
+	.quad sys_munlock2			/* 515 */
+	.quad sys_munlockall2
 
 	.size sys_call_table, . - sys_call_table
 	.type sys_call_table, @object
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index 05745eb..514e77b 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -397,6 +397,9 @@
 /* 385 */	CALL(sys_memfd_create)
 		CALL(sys_bpf)
 		CALL(sys_execveat)
+		CALL(sys_mlock2)
+		CALL(sys_munlock2)
+/* 400 */	CALL(sys_munlockall2)
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index cef934a..318072aa 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -797,3 +797,9 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 387
 __SYSCALL(__NR_execveat, compat_sys_execveat)
+#define __NR_mlock2 388
+__SYSCALL(__NR_mlock2, sys_mlock2)
+#define __NR_munlock2 389
+__SYSCALL(__NR_munlock2, sys_munlock2)
+#define __NR_munlockall2 390
+__SYSCALL(__NR_munlockall2, sys_munlockall2)
diff --git a/arch/avr32/kernel/syscall_table.S b/arch/avr32/kernel/syscall_table.S
index c3b593b..83928ab 100644
--- a/arch/avr32/kernel/syscall_table.S
+++ b/arch/avr32/kernel/syscall_table.S
@@ -334,4 +334,7 @@ sys_call_table:
 	.long	sys_memfd_create
 	.long	sys_bpf
 	.long	sys_execveat		/* 320 */
+	.long   sys_mlock2
+	.long   sys_munlock2
+	.long   sys_munlockall2
 	.long	sys_ni_syscall		/* r8 is saturated at nr_syscalls */
diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index 8d9431e..5d83587 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -1704,6 +1704,9 @@ ENTRY(_sys_call_table)
 	.long _sys_memfd_create		/* 390 */
 	.long _sys_bpf
 	.long _sys_execveat
+	.long _sys_mlock2
+	.long _sys_munlock2
+	.long _sys_munlockall2		/* 395 */
 
 	.rept NR_syscalls-(.-_sys_call_table)/4
 	.long _sys_ni_syscall
diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index 81570fc..d0ce531 100644
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/arch/cris/arch-v10/kernel/entry.S
@@ -955,6 +955,9 @@ sys_call_table:
 	.long sys_process_vm_writev
 	.long sys_kcmp			/* 350 */
 	.long sys_finit_module
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
 
         /*
          * NOTE!! This doesn't have to be exact - we just have
diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S
index 026a0b2..7f50a0b 100644
--- a/arch/cris/arch-v32/kernel/entry.S
+++ b/arch/cris/arch-v32/kernel/entry.S
@@ -875,6 +875,9 @@ sys_call_table:
 	.long sys_process_vm_writev
 	.long sys_kcmp			/* 350 */
 	.long sys_finit_module
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
 
 	/*
 	 * NOTE!! This doesn't have to be exact - we just have
diff --git a/arch/frv/kernel/entry.S b/arch/frv/kernel/entry.S
index dfcd263..ee605a0 100644
--- a/arch/frv/kernel/entry.S
+++ b/arch/frv/kernel/entry.S
@@ -1515,5 +1515,8 @@ sys_call_table:
 	.long sys_rt_tgsigqueueinfo	/* 335 */
 	.long sys_perf_event_open
 	.long sys_setns
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2		/* 340 */
 
 syscall_table_size = (. - sys_call_table)
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index ae0de7b..3ef4457 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1768,5 +1768,8 @@ sys_call_table:
 	data8 sys_memfd_create			// 1340
 	data8 sys_bpf
 	data8 sys_execveat
+	data8 sys_mlock2
+	data8 sys_munlock2
+	data8 sys_munlockall2			// 1345
 
 	.org sys_call_table + 8*NR_syscalls	// guard against failures to increase NR_syscalls
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index c639bfa..4f7f2e2 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -76,6 +76,9 @@
 #define sys_munlock		sys_ni_syscall
 #define sys_mlockall		sys_ni_syscall
 #define sys_munlockall		sys_ni_syscall
+#define sys_mlock2		sys_ni_syscall
+#define sys_munlock2		sys_ni_syscall
+#define sys_munlockall2		sys_ni_syscall
 #define sys_mremap		sys_ni_syscall
 #define sys_mincore		sys_ni_syscall
 #define sys_remap_file_pages	sys_ni_syscall
diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S
index f365c19..9918c3e 100644
--- a/arch/m32r/kernel/syscall_table.S
+++ b/arch/m32r/kernel/syscall_table.S
@@ -325,3 +325,6 @@ ENTRY(sys_call_table)
 	.long sys_eventfd
 	.long sys_fallocate
 	.long sys_setns			/* 325 */
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index a0ec430..7963c03 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -376,4 +376,7 @@ ENTRY(sys_call_table)
 	.long sys_memfd_create
 	.long sys_bpf
 	.long sys_execveat		/* 355 */
+	.long sys_mlock2
+	.long sys_munlock2
+	.long sys_munlockall2
 
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index 29c8568..6e4b0fe 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -389,3 +389,6 @@ ENTRY(sys_call_table)
 	.long sys_memfd_create
 	.long sys_bpf
 	.long sys_execveat
+	.long sys_mlock2
+	.long sys_munlock2		/* 390 */
+	.long sys_munlockall2
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index cfcb876..67c1cdf 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -62,6 +62,11 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL 2		/* expect sequential page references */
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index 6e8de80..7af6066 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -582,3 +582,6 @@ EXPORT(sys_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 4355 */
 	PTR	sys_execveat
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index ad4d4463..0aa2742 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -436,4 +436,7 @@ EXPORT(sys_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 5315 */
 	PTR	sys_execveat
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
 	.size	sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 446cc65..eb21955 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -429,4 +429,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf
 	PTR	compat_sys_execveat		/* 6320 */
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
 	.size	sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index d07b210..ee59c82 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -567,4 +567,7 @@ EXPORT(sys32_call_table)
 	PTR	sys_memfd_create
 	PTR	sys_bpf				/* 4355 */
 	PTR	compat_sys_execveat
+	PTR	sys_mlock2
+	PTR	sys_munlock2
+	PTR	sys_munlockall2
 	.size	sys32_call_table,.-sys32_call_table
diff --git a/arch/mn10300/kernel/entry.S b/arch/mn10300/kernel/entry.S
index 177d61d..d34adf5 100644
--- a/arch/mn10300/kernel/entry.S
+++ b/arch/mn10300/kernel/entry.S
@@ -767,6 +767,9 @@ ENTRY(sys_call_table)
 	.long sys_perf_event_open
 	.long sys_recvmmsg
 	.long sys_setns
+	.long sys_mlock2		/* 340 */
+	.long sys_munlock2
+	.long sys_munlockall2
 
 
 nr_syscalls=(.-sys_call_table)/4
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 294d251..daab994 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -32,6 +32,8 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL     0               /* no further special treatment */
 #define MADV_RANDOM     1               /* expect random page references */
 #define MADV_SEQUENTIAL 2               /* expect sequential page references */
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 6ea26df..189e85f 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -23,6 +23,8 @@
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 1acad02..f6d81d6 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -363,3 +363,6 @@ SYSCALL(sys_bpf,compat_sys_bpf)
 SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
 SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
 SYSCALL(sys_execveat,compat_sys_execveat)
+SYSCALL(sys_mlock2,compat_sys_mlock2)			/* 355 */
+SYSCALL(sys_munlock2,compat_sys_munlock2)
+SYSCALL(sys_munlockall2,compat_sys_munlockall2)
diff --git a/arch/sh/kernel/syscalls_32.S b/arch/sh/kernel/syscalls_32.S
index 734234b..6d07867 100644
--- a/arch/sh/kernel/syscalls_32.S
+++ b/arch/sh/kernel/syscalls_32.S
@@ -386,3 +386,6 @@ ENTRY(sys_call_table)
 	.long sys_process_vm_writev
 	.long sys_kcmp
 	.long sys_finit_module
+	.long sys_mlock2
+	.long sys_munlock2		/* 370 */
+	.long sys_munlockall2
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 0b14df3..13d51be 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -18,6 +18,8 @@
 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MAP_POPULATE	0x8000		/* populate (prefault) pagetables */
 #define MAP_NONBLOCK	0x10000		/* do not block on IO */
 #define MAP_STACK	0x20000		/* give out an address that is best suited for process/thread stacks */
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index e31a905..72b68d4 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -87,4 +87,4 @@ sys_call_table:
 /*335*/	.long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
 /*340*/	.long sys_ni_syscall, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
 /*345*/	.long sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
-/*350*/	.long sys_execveat
+/*350*/	.long sys_execveat, sys_mlock2, sys_munlock2, sys_munlockall2
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index d72f76a..a96bfea 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -88,7 +88,7 @@ sys_call_table32:
 	.word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev
 /*340*/	.word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
 	.word sys32_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
-/*350*/	.word sys32_execveat
+/*350*/	.word sys32_execveat, sys_mlock2, sys_munlock2, sys_munlockall2
 
 #endif /* CONFIG_COMPAT */
 
@@ -168,4 +168,4 @@ sys_call_table:
 	.word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev
 /*340*/	.word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr
 	.word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
-/*350*/	.word sys64_execveat
+/*350*/	.word sys64_execveat, sys_mlock2, sys_munlock2, sys_munlockall2
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 81b8fc3..f69ce48 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -37,5 +37,10 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 
 #endif /* _ASM_TILE_MMAN_H */
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index ef8187f..13ce950 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -365,3 +365,6 @@
 356	i386	memfd_create		sys_memfd_create
 357	i386	bpf			sys_bpf
 358	i386	execveat		sys_execveat			stub32_execveat
+359	i386	mlock2			sys_mlock2
+360	i386	munlock2		sys_munlock2
+361	i386	munlockall2		sys_munlockall2
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index 9ef32d5..13b3cb1 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -329,6 +329,9 @@
 320	common	kexec_file_load		sys_kexec_file_load
 321	common	bpf			sys_bpf
 322	64	execveat		stub_execveat
+323	common	mlock2			sys_mlock2
+324	common	munlock2		sys_munlock2
+325	common	munlockall2		sys_munlockall2
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index 201aec0..11f354f 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -75,6 +75,11 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+/*
+ * Flags for mlock
+ */
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #define MADV_NORMAL	0		/* no further special treatment */
 #define MADV_RANDOM	1		/* expect random page references */
 #define MADV_SEQUENTIAL	2		/* expect sequential page references */
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index b95c305..961913c 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -753,8 +753,14 @@ __SYSCALL(339, sys_memfd_create, 2)
 __SYSCALL(340, sys_bpf, 3)
 #define __NR_execveat				341
 __SYSCALL(341, sys_execveat, 5)
-
-#define __NR_syscall_count			342
+#define __NR_mlock2				342
+__SYSCALL(342, sys_mlock2, 3)
+#define __NR_munlock2				343
+__SYSCALL(342, sys_munlock2, 3)
+#define __NR_munlockall2			344
+__SYSCALL(342, sys_munlock2, 1)
+
+#define __NR_syscall_count			345
 
 /*
  * sysxtensa syscall handler
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b45c45b..aecab5d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -884,4 +884,8 @@ asmlinkage long sys_execveat(int dfd, const char __user *filename,
 			const char __user *const __user *argv,
 			const char __user *const __user *envp, int flags);
 
+asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
+asmlinkage long sys_munlock2(unsigned long start, size_t len, int flags);
+asmlinkage long sys_munlockall2(int flags);
+
 #endif
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index e9fe6fd..242436b 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -18,4 +18,6 @@
 #define MCL_CURRENT	1		/* lock all current mappings */
 #define MCL_FUTURE	2		/* lock all future mappings */
 
+#define MLOCK_LOCKED	0x01		/* Lock and populate the specified range */
+
 #endif /* __ASM_GENERIC_MMAN_H */
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index e016bd9..e759fa2 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -709,9 +709,15 @@ __SYSCALL(__NR_memfd_create, sys_memfd_create)
 __SYSCALL(__NR_bpf, sys_bpf)
 #define __NR_execveat 281
 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat)
+#define __NR_mlock2 282
+__SYSCALL(__NR_mlock2, sys_mlock2)
+#define __NR_munlock2 283
+__SYSCALL(__NR_munlock2, sys_munlock2)
+#define __NR_munlockall2 284
+__SYSCALL(__NR_munlockall2, sys_munlockall2)
 
 #undef __NR_syscalls
-#define __NR_syscalls 282
+#define __NR_syscalls 285
 
 /*
  * All syscalls below here should go away really,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 7995ef5..63529b7 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -193,6 +193,9 @@ cond_syscall(sys_mlock);
 cond_syscall(sys_munlock);
 cond_syscall(sys_mlockall);
 cond_syscall(sys_munlockall);
+cond_syscall(sys_mlock2);
+cond_syscall(sys_munlock2);
+cond_syscall(sys_munlockall2);
 cond_syscall(sys_mincore);
 cond_syscall(sys_madvise);
 cond_syscall(sys_mremap);
diff --git a/mm/mlock.c b/mm/mlock.c
index 8e52c23..d6e61d6 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -648,6 +648,14 @@ SYSCALL_DEFINE2(mlock, unsigned long, start, size_t, len)
 	return do_mlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(mlock2, unsigned long, start, size_t, len, int, flags)
+{
+	if (!flags || flags & ~MLOCK_LOCKED)
+		return -EINVAL;
+
+	return do_mlock(start, len, VM_LOCKED);
+}
+
 static int do_munlock(unsigned long start, size_t len, vm_flags_t flags)
 {
 	int ret;
@@ -667,6 +675,13 @@ SYSCALL_DEFINE2(munlock, unsigned long, start, size_t, len)
 	return do_munlock(start, len, VM_LOCKED);
 }
 
+SYSCALL_DEFINE3(munlock2, unsigned long, start, size_t, len, int, flags)
+{
+	if (!flags || flags & ~MLOCK_LOCKED)
+		return -EINVAL;
+	return do_munlock(start, len, VM_LOCKED);
+}
+
 static int do_mlockall(int flags)
 {
 	struct vm_area_struct * vma, * prev = NULL;
@@ -756,6 +771,19 @@ SYSCALL_DEFINE0(munlockall)
 	return ret;
 }
 
+SYSCALL_DEFINE1(munlockall2, int, flags)
+{
+	int ret = -EINVAL;
+
+	if (!flags || flags & ~(MCL_CURRENT | MCL_FUTURE))
+		return ret;
+
+	down_write(&current->mm->mmap_sem);
+	ret = do_munlockall(flags);
+	up_write(&current->mm->mmap_sem);
+	return ret;
+}
+
 /*
  * Objects with different lifetime than processes (SHM_LOCK and SHM_HUGETLB
  * shm segments) get accounted against the user_struct instead.
