diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-03-04 20:20:10 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-04 20:20:10 +0100 |
| commit | 6d2e91bf80e4410207f01edb0962aec9213f3533 (patch) | |
| tree | d9e63711b0958748accff409596eca742a3c360b /include/linux/rcutree.h | |
| parent | 6298e719cf388f43b674f43799af467d3e4e5aa7 (diff) | |
| parent | dd39ecf522ba86c70809715af46e6557f6491131 (diff) | |
Merge branch 'x86/urgent' into x86/mm
Conflicts:
arch/x86/include/asm/fixmap_64.h
Semantic merge:
arch/x86/include/asm/fixmap.h
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 */ |