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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-13 02:14:25 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-13 02:14:25 +0100 |
| commit | 25d500067d5a666d1336598d1b324793554e5496 (patch) | |
| tree | 3402308c4c69a66d02ce55f5c165e242fad2a8a9 /include/linux/rcuclassic.h | |
| parent | 0b13fda1e0936b3d64c4c407f183d33fa6bd2ad4 (diff) | |
| parent | 9ead64974b05501bbac0d63a47c99fa786d064ba (diff) | |
Merge branch 'linus' into core/ipi
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 */ |