Messages in this thread | | | Date | Wed, 31 Oct 2012 17:47:04 +0000 | From | Christoph Lameter <> | Subject | Re: [PATCH 7/9] rcu: use this_cpu_ptr per-cpu helper instead of per_cpu_ptr(p, raw_smp_processor_id()) |
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On Wed, 31 Oct 2012, Shan Wei wrote:
> Signed-off-by: Shan Wei <davidshan@tencent.com> > --- > kernel/rcutree.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/kernel/rcutree.c b/kernel/rcutree.c > index 74df86b..3a21fcf 100644 > --- a/kernel/rcutree.c > +++ b/kernel/rcutree.c > @@ -1960,7 +1960,7 @@ static void force_quiescent_state(struct rcu_state *rsp) > struct rcu_node *rnp_old = NULL; > > /* Funnel through hierarchy to reduce memory contention. */ > - rnp = per_cpu_ptr(rsp->rda, raw_smp_processor_id())->mynode; > + rnp = this_cpu_ptr(rsp->rda)->mynode;
Do
rnp = this_cpu_read(rsp->rda->mynode);
instad.
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