arch/arm/include/asm/switch_to.h

   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 */