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| author | David S. Miller <davem@davemloft.net> | 2009-03-05 02:06:47 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-05 02:06:47 -0800 |
| commit | 508827ff0ac3981d420edac64a70de7f4e304d38 (patch) | |
| tree | b0cee8ddef9f0ceab68c388e4ae46b7295eb2cb5 /kernel/rcupreempt.c | |
| parent | 2c3c3d02f28801d7ad2da4952b2c7ca6621ef221 (diff) | |
| parent | 72e2240f181871675d3a979766330c91d48a1673 (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/tokenring/tmspci.c
drivers/net/ucc_geth_mii.c
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); |