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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-06 05:47:52 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-06 05:47:52 -0500 |
| commit | 7fc07d84108d54c5b94625c0e168f31b2d66976e (patch) | |
| tree | bebcbcae186108a815de0c1b90e25b1a5fa3852c /include/linux/rcutree.h | |
| parent | b67802ea8061393f7bd2d4db934646e76096027c (diff) | |
| parent | 8a0be9ef8225638d26b455788f988c8f84ce9e75 (diff) | |
Merge branch 'sched/core' into sched/cleanups
Diffstat (limited to 'include/linux/rcutree.h')
| -rw-r--r-- | include/linux/rcutree.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h index d4368b7975c3..a722fb67bb2d 100644 --- a/include/linux/rcutree.h +++ b/include/linux/rcutree.h | |||
| @@ -326,4 +326,10 @@ static inline void rcu_exit_nohz(void) | |||
| 326 | } | 326 | } |
| 327 | #endif /* CONFIG_NO_HZ */ | 327 | #endif /* CONFIG_NO_HZ */ |
| 328 | 328 | ||
| 329 | /* A context switch is a grace period for rcutree. */ | ||
| 330 | static inline int rcu_blocking_is_gp(void) | ||
| 331 | { | ||
| 332 | return num_online_cpus() == 1; | ||
| 333 | } | ||
| 334 | |||
| 329 | #endif /* __LINUX_RCUTREE_H */ | 335 | #endif /* __LINUX_RCUTREE_H */ |