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sched: do not do cond_resched() when CONFIG_PREEMPT

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Why do we even have cond_resched when real preemption
is on? It seems to be a waste of space and time.

remove cond_resched with CONFIG_PREEMPT on.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Herbert Xu
2008-01-25 21:08:28 +01:00
committed by Ingo Molnar
parent 03319ec8b0
commit 02b67cc3ba
3 changed files with 18 additions and 5 deletions
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4
include/linux/kernel.h
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@ -105,8 +105,8 @@ struct user;
* supposed to.
*/
#ifdef CONFIG_PREEMPT_VOLUNTARY
extern int cond_resched(void);
# define might_resched() cond_resched()
extern int _cond_resched(void);
# define might_resched() _cond_resched()
#else
# define might_resched() do { } while (0)
#endif