|  | /* | 
|  | *    Copyright IBM Corp. 2007 | 
|  | * | 
|  | */ | 
|  |  | 
|  | #ifndef __ARCH_S390_LIB_UACCESS_H | 
|  | #define __ARCH_S390_LIB_UACCESS_H | 
|  |  | 
|  | extern size_t copy_from_user_std(size_t, const void __user *, void *); | 
|  | extern size_t copy_to_user_std(size_t, void __user *, const void *); | 
|  | extern size_t strnlen_user_std(size_t, const char __user *); | 
|  | extern size_t strncpy_from_user_std(size_t, const char __user *, char *); | 
|  | extern int futex_atomic_cmpxchg_std(u32 *, u32 __user *, u32, u32); | 
|  | extern int futex_atomic_op_std(int, u32 __user *, int, int *); | 
|  |  | 
|  | extern size_t copy_from_user_pt(size_t, const void __user *, void *); | 
|  | extern size_t copy_to_user_pt(size_t, void __user *, const void *); | 
|  | extern int futex_atomic_op_pt(int, u32 __user *, int, int *); | 
|  | extern int futex_atomic_cmpxchg_pt(u32 *, u32 __user *, u32, u32); | 
|  |  | 
|  | #endif /* __ARCH_S390_LIB_UACCESS_H */ |