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| author | Thomas Gleixner <tglx@linutronix.de> | 2013-03-21 21:49:33 (GMT) |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2013-04-08 15:39:22 (GMT) |
| commit | 3a98f871ecaf44806e188184332c3fec27c8f08c (patch) | |
| tree | eaa95ad4a4762719a2c5b255e9e5444fae23943c | |
| parent | ee761f629d598579594d7e1eb8c552f3c5f71e4d (diff) | |
| download | linux-3a98f871ecaf44806e188184332c3fec27c8f08c.tar.xz | |
idle: Implement set/clr functions for need_resched poll
Implement set/clear functions for the idle need_resched poll
implementation.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Cc: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Magnus Damm <magnus.damm@gmail.com>
Link: http://lkml.kernel.org/r/20130321215233.518839807@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
| -rw-r--r-- | include/linux/sched.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 6709a58..21fe9a1 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2632,13 +2632,34 @@ static inline int tsk_is_polling(struct task_struct *p) { 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) { return 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 /* |