asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
+asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
+ unsigned long prot, int pkey);
+asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
+asmlinkage long sys_pkey_free(int pkey);
+//asmlinkage long sys_pkey_get(int pkey, unsigned long flags);
+//asmlinkage long sys_pkey_set(int pkey, unsigned long access_rights,
+// unsigned long flags);
+
#endif