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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-11 17:10:07 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-03-11 17:10:07 +1100 |
| commit | e14eee56c2280953c6e3d24d5dce42bd90836b81 (patch) | |
| tree | 21ab792d9ad6fbbab460058f352a0158f995644e /include/linux/rcuclassic.h | |
| parent | d6ee6f7e4c74d9a0fed7544f4d389bde004651d3 (diff) | |
| parent | 99adcd9d67aaf04e28f5ae96df280f236bde4b66 (diff) | |
Merge commit 'origin/master' into next
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 f3f697df1d7..80044a4f3ab 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 */ |