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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-05 11:59:10 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-05 11:59:10 +0100 |
| commit | 49d2d266adff27793fed247a2e9e672d59b6ddc6 (patch) | |
| tree | aa23052f8b6e9f1a96e56873c940eef7110f0013 /include/linux/rcuclassic.h | |
| parent | 5512b3ece0cbb5024b83099963222700aa45f59e (diff) | |
| parent | fec6c6fec3e20637bee5d276fb61dd8b49a3f9cc (diff) | |
| download | lwn-49d2d266adff27793fed247a2e9e672d59b6ddc6.tar.gz lwn-49d2d266adff27793fed247a2e9e672d59b6ddc6.zip | |
Merge commit 'v2.6.29-rc7' into sched/core
Diffstat (limited to 'include/linux/rcuclassic.h')
| -rw-r--r-- | include/linux/rcuclassic.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rcuclassic.h b/include/linux/rcuclassic.h index f3f697df1d71..80044a4f3ab9 100644 --- a/include/linux/rcuclassic.h +++ b/include/linux/rcuclassic.h @@ -181,4 +181,10 @@ extern long rcu_batches_completed_bh(void); #define rcu_enter_nohz() do { } while (0) #define rcu_exit_nohz() do { } while (0) +/* A context switch is a grace period for rcuclassic. */ +static inline int rcu_blocking_is_gp(void) +{ + return num_online_cpus() == 1; +} + #endif /* __LINUX_RCUCLASSIC_H */ |