diff options
Diffstat (limited to 'include/linux/sched.h')
-rw-r--r-- | include/linux/sched.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index d35d2b6ddbfb..6709a5813f27 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2622,6 +2622,26 @@ static inline int spin_needbreak(spinlock_t *lock) } /* + * Idle thread specific functions to determine 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 + */ +#ifdef TS_POLLING +static inline int tsk_is_polling(struct task_struct *p) +{ + return task_thread_info(p)->status & TS_POLLING; +} +#elif defined(TIF_POLLING_NRFLAG) +static inline int tsk_is_polling(struct task_struct *p) +{ + return test_tsk_thread_flag(p, TIF_POLLING_NRFLAG); +} +#else +static inline int tsk_is_polling(struct task_struct *p) { return 0; } +#endif + +/* * Thread group CPU time accounting. */ void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times); |