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| author | Mark Brown <broonie@kernel.org> | 2014-11-03 15:13:33 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-11-03 15:13:33 +0000 |
| commit | ebc01f593b58e1896150fc2e3cbdd0116323c52c (patch) | |
| tree | 23e905a3fdbee3fc8a66ef760b9ed5ef5455e9dd /kernel/rcu/tree.c | |
| parent | 3f7256fe5fc64132a2dd19695255c990aa2188cf (diff) | |
| parent | 0df1f2487d2f0d04703f142813d53615d62a1da4 (diff) | |
Merge tag 'v3.18-rc3' into asoc-sgtl5000
Linux 3.18-rc3
Diffstat (limited to 'kernel/rcu/tree.c')
| -rw-r--r-- | kernel/rcu/tree.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 133e47223095..9815447d22e0 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -3299,11 +3299,16 @@ static void _rcu_barrier(struct rcu_state *rsp) continue; rdp = per_cpu_ptr(rsp->rda, cpu); if (rcu_is_nocb_cpu(cpu)) { - _rcu_barrier_trace(rsp, "OnlineNoCB", cpu, - rsp->n_barrier_done); - atomic_inc(&rsp->barrier_cpu_count); - __call_rcu(&rdp->barrier_head, rcu_barrier_callback, - rsp, cpu, 0); + if (!rcu_nocb_cpu_needs_barrier(rsp, cpu)) { + _rcu_barrier_trace(rsp, "OfflineNoCB", cpu, + rsp->n_barrier_done); + } else { + _rcu_barrier_trace(rsp, "OnlineNoCB", cpu, + rsp->n_barrier_done); + atomic_inc(&rsp->barrier_cpu_count); + __call_rcu(&rdp->barrier_head, + rcu_barrier_callback, rsp, cpu, 0); + } } else if (ACCESS_ONCE(rdp->qlen)) { _rcu_barrier_trace(rsp, "OnlineQ", cpu, rsp->n_barrier_done); |