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| author | David S. Miller <davem@davemloft.net> | 2009-03-04 23:59:54 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-04 23:59:54 -0800 |
| commit | 77827a7cf3aa415f8afec6d9d0537dda8de90ef1 (patch) | |
| tree | 503ab81e2b997e3625360b380f1cd18f923a6454 /include/linux/rcutree.h | |
| parent | 9d40bbda599def1e1d155d7f7dca14fe8744bd2b (diff) | |
| parent | 559595a985e106d2fa9f0c79b7f5805453fed593 (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
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) } #endif /* CONFIG_NO_HZ */ +/* A context switch is a grace period for rcutree. */ +static inline int rcu_blocking_is_gp(void) +{ + return num_online_cpus() == 1; +} + #endif /* __LINUX_RCUTREE_H */ |