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Date: Fri, 18 Jul 2014 17:47:47 -0700 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: Pranith Kumar <bobby.prani@...il.com> Cc: LKML <linux-kernel@...r.kernel.org>, Josh Triplett <josh@...htriplett.org> Subject: Re: [PATCH 1/1] rcu: Fix build failure On Fri, Jul 18, 2014 at 01:30:52PM -0400, Pranith Kumar wrote: > Hi Paul, > > While running the kvm rcutorture test scripts, I encountered a build failure caused by > > Commit 918179699e4a ("rcu: Don't keep timekeeping CPU tick running for non-nohz_full= CPUs") > > This commit fixes the failure. This is on top of paul/rcu/dev. > > Signed-off-by: Pranith Kumar <bobby.prani@...il.com> > --- > kernel/rcu/tree_plugin.h | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h > index 5591276..eaa32e4 100644 > --- a/kernel/rcu/tree_plugin.h > +++ b/kernel/rcu/tree_plugin.h > @@ -2795,7 +2795,7 @@ static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq) > * CPU to keep a tick on our behalf. We assume that the timekeeping > * CPU is also a nohz_full= CPU. > */ > - if (!tick_nohz_full_cpu(cpu)) > + if (!tick_nohz_full_cpu(smp_processor_id())) Good catch, but please see 770d957e (rcu: Don't keep timekeeping CPU tick running for non-nohz_full= CPUs). ;-) Thanx, Paul > return; > > /* Update system-idle state: We are clearly no longer fully idle! */ > -- > 1.9.1 > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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