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| author | Felix Blyakher <felixb@sgi.com> | 2009-03-06 17:06:44 -0600 |
|---|---|---|
| committer | Felix Blyakher <felixb@sgi.com> | 2009-03-06 17:06:44 -0600 |
| commit | 47d1ff6e1a24c0126cd0243b1d6d0a3ffbd7a026 (patch) | |
| tree | b53cd3df68e3a199f6764c619c1a5092d27547e2 /kernel/rcupreempt.c | |
| parent | b79631330a653f568a2ac4eb4a32474c80e3fe77 (diff) | |
| parent | 559595a985e106d2fa9f0c79b7f5805453fed593 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'kernel/rcupreempt.c')
| -rw-r--r-- | kernel/rcupreempt.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/rcupreempt.c b/kernel/rcupreempt.c index 33cfc50781f9..5d59e850fb71 100644 --- a/kernel/rcupreempt.c +++ b/kernel/rcupreempt.c @@ -1181,6 +1181,9 @@ void __synchronize_sched(void) { struct rcu_synchronize rcu; + if (num_online_cpus() == 1) + return; /* blocking is gp if only one CPU! */ + init_completion(&rcu.completion); /* Will wake me after RCU finished. */ call_rcu_sched(&rcu.head, wakeme_after_rcu); |