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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-26 18:49:48 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-26 18:49:48 +0100 |
| commit | 18ffa418aead13c56515ac74cd26105102128aca (patch) | |
| tree | 2096ea8db3b2594bd25ad39a70edc691219f669b /include/linux/rcuclassic.h | |
| parent | ab76f3d771590d5c89faa3219559c5d3fc0ce0c2 (diff) | |
| parent | 8e0ee43bc2c3e19db56a4adaa9a9b04ce885cd84 (diff) | |
Merge commit 'v2.6.29' into x86/setup-lzma
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 */ |