1. 根目录:
2. arch
3. alpha
4. include
5. asm
6. current.h

#ifndef _ALPHA_CURRENT_H
#define _ALPHA_CURRENT_H

#include <linux/thread_info.h>

#define get_current()	(current_thread_info()->task)
#define current		get_current()

#endif /* _ALPHA_CURRENT_H */