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Diffstat (limited to 'include/asm-sparc/current.h')
| -rw-r--r-- | include/asm-sparc/current.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/asm-sparc/current.h b/include/asm-sparc/current.h new file mode 100644 index 000000000000..8fe7c82a5e21 --- /dev/null +++ b/include/asm-sparc/current.h @@ -0,0 +1,31 @@ +/* + * 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) */ |