|  | /* | 
|  | *  include/asm-sparc/current.h | 
|  | * | 
|  | * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation | 
|  | * Copyright (C) 2002 Pete Zaitcev (zaitcev@yahoo.com) | 
|  | * | 
|  | *  Derived from "include/asm-s390/current.h" by | 
|  | *  Martin Schwidefsky (schwidefsky@de.ibm.com) | 
|  | *  Derived from "include/asm-i386/current.h" | 
|  | */ | 
|  | #ifndef _ASM_CURRENT_H | 
|  | #define _ASM_CURRENT_H | 
|  |  | 
|  | /* | 
|  | * At the sparc64 DaveM keeps current_thread_info in %g4. | 
|  | * We might want to consider doing the same to shave a few cycles. | 
|  | */ | 
|  |  | 
|  | #include <linux/thread_info.h> | 
|  |  | 
|  | struct task_struct; | 
|  |  | 
|  | /* Two stage process (inline + #define) for type-checking. */ | 
|  | /* We also obfuscate get_current() to check if anyone used that by mistake. */ | 
|  | static inline struct task_struct *__get_current(void) | 
|  | { | 
|  | return current_thread_info()->task; | 
|  | } | 
|  | #define current __get_current() | 
|  |  | 
|  | #endif /* !(_ASM_CURRENT_H) */ |