Implement set/clear functions for the idle need_resched poll implementation. Signed-off-by: Thomas Gleixner --- include/linux/sched.h | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) Index: linux-2.6/include/linux/sched.h =================================================================== --- linux-2.6.orig/include/linux/sched.h +++ linux-2.6/include/linux/sched.h @@ -2473,7 +2473,7 @@ static inline unsigned long *end_of_stac #endif /* - * Idle thread specific functions to determine the need_resched + * Idle thread specific functions for the the need_resched * polling state. We have two versions, one based on TS_POLLING in * thread_info.status and one based on TIF_POLLING_NRFLAG in * thread_info.flags @@ -2483,13 +2483,34 @@ static inline int tsk_is_polling(struct { return task_thread_info(p)->status & TS_POLLING; } +static inline void current_set_polling(void) +{ + current_thread_info()->status |= TS_POLLING; +} + +static inline void current_clr_polling(void) +{ + current_thread_info()->status &= ~TS_POLLING; + smp_mb__after_clear_bit(); +} #elif defined(TIF_POLLING_NRFLAG) static inline int tsk_is_polling(struct task_struct *p) { test_tsk_thread_flag(p, TIF_POLLING_NRFLAG); } +static inline void current_set_polling(void) +{ + set_thread_flag(TIF_POLLING_NRFLAG); +} + +static inline void current_clr_polling(void) +{ + clear_thread_flag(TIF_POLLING_NRFLAG); +} #else static inline int tsk_is_polling(struct task_struct *p) { return 0; } +static inline void current_set_polling(void) { } +static inline void current_clr_polling(void) { } #endif static inline int object_is_on_stack(void *obj) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/