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| author | Ingo Molnar <mingo@elte.hu> | 2009-03-04 11:42:31 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-04 11:42:31 +0100 |
| commit | 8163d88c79dca35478a2405c837733ac50ea4c39 (patch) | |
| tree | 6acae066a09b7dcbedab4a35ad62eba4ba3fd83c /include/linux/rcutree.h | |
| parent | a1ef58f442542d8b3e3b963339fbc522c36e827c (diff) | |
| parent | fec6c6fec3e20637bee5d276fb61dd8b49a3f9cc (diff) | |
Merge commit 'v2.6.29-rc7' into perfcounters/core
Conflicts:
arch/x86/mm/iomap_32.c
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 */ |