Messages in this thread | | | Date | Tue, 12 Aug 2014 15:37:00 -0700 | From | Stephen Boyd <> | Subject | Re: [PATCH v2] irqchip: gic: Allow gic_arch_extn hooks to call into scheduler |
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On 08/05/14 19:34, Nicolas Pitre wrote: > >> It allows us to synchronize with another CPU that may be inside >> gic_raise_softirq(). If the other CPU was in that function then this CPU >> would wait until it was done sending the IPI to continue along and >> reroute them. If the other CPU was just about to grab the sgi lock then >> we would guarantee that the CPU would see the new gic_cpu_map value and >> thus any redirection is not necessary. > OK I get it now. > >> I hoped that the commit text explained this. > I'm possibly not bright enough to get it the first time. > >> Honestly it probably isn't a noticeable performance boost either way >> but I think this is the best we can do. > Sure, agreed. > > >
Ok, so which patch is preferred?
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