[linux-block.git] / arch / arm / include / asm / switch_to.h

#ifndef __ASM_ARM_SWITCH_TO_H
#define __ASM_ARM_SWITCH_TO_H

#include <linux/thread_info.h>

/*
 * switch_to(prev, next) should switch from task `prev' to `next'
 * `prev' will never be the same as `next'.  schedule() itself
 * contains the memory barrier to tell GCC not to cache `current'.
 */
extern struct task_struct *__switch_to(struct task_struct *, struct thread_info *, struct thread_info *);

#define switch_to(prev,next,last)					\
do {									\
	last = __switch_to(prev,task_thread_info(prev), task_thread_info(next));	\
} while (0)

#endif /* __ASM_ARM_SWITCH_TO_H */
Commit	Line	Data
9f97da78 DH	1	#ifndef __ASM_ARM_SWITCH_TO_H
	2	#define __ASM_ARM_SWITCH_TO_H
	3
	4	#include <linux/thread_info.h>
	5
	6	/*
	7	* switch_to(prev, next) should switch from task `prev' to `next'
	8	* `prev' will never be the same as `next'. schedule() itself
	9	* contains the memory barrier to tell GCC not to cache `current'.
	10	*/
	11	extern struct task_struct __switch_to(struct task_struct , struct thread_info , struct thread_info );
	12
	13	#define switch_to(prev,next,last) \
	14	do { \
	15	last = __switch_to(prev,task_thread_info(prev), task_thread_info(next)); \
	16	} while (0)
	17
	18	#endif /* __ASM_ARM_SWITCH_TO_H */