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| author | David S. Miller <davem@davemloft.net> | 2009-03-05 02:59:54 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-05 02:59:54 -0500 |
| commit | 77827a7cf3aa415f8afec6d9d0537dda8de90ef1 (patch) | |
| tree | 503ab81e2b997e3625360b380f1cd18f923a6454 /include/linux/rcuclassic.h | |
| parent | 9d40bbda599def1e1d155d7f7dca14fe8744bd2b (diff) | |
| parent | 559595a985e106d2fa9f0c79b7f5805453fed593 (diff) | |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
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); | |||
| 181 | #define rcu_enter_nohz() do { } while (0) | 181 | #define rcu_enter_nohz() do { } while (0) |
| 182 | #define rcu_exit_nohz() do { } while (0) | 182 | #define rcu_exit_nohz() do { } while (0) |
| 183 | 183 | ||
| 184 | /* A context switch is a grace period for rcuclassic. */ | ||
| 185 | static inline int rcu_blocking_is_gp(void) | ||
| 186 | { | ||
| 187 | return num_online_cpus() == 1; | ||
| 188 | } | ||
| 189 | |||
| 184 | #endif /* __LINUX_RCUCLASSIC_H */ | 190 | #endif /* __LINUX_RCUCLASSIC_H */ |