xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

arch: Consolidate tsk_is_polling()

Browse Source 
Move it to a common place. Preparatory patch for implementing
set/clear 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/20130321215233.446034505@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner
2013-03-21 22:49:32 +01:00
parent 6546327ad1
commit ee761f629d
15 changed files with 20 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
include/linux/sched.h
View File

@@ -2621,6 +2621,26 @@ static inline int spin_needbreak(spinlock_t *lock)
#endif
}
/*
* 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.
*/