Re: [PATCH][PCI]: Introduce pci_find_capability_cached and make MSI use it

From: Jesse Barnes
Date: Fri May 16 2008 - 15:02:20 EST

On Friday, May 16, 2008 11:33 am Arnaldo Carvalho de Melo wrote:
> > There are a few other common cap checks, but I don't think they compare
> > to MSI in terms of latency sensitivity (though I didn't audit all the
> > CAP_ID_EXP checks, there are quite a few of those).
> >
> > Since we know MSI is a problem, let's just go with fixing that for now.
> > If we find that other caps are also causing problems we can revisit
> > caching all of them; the patch is simple enough.
> Do you want me to submit another patch or can you cook up one?

I can hack it up, probably not until Monday though (I'll be out of town this

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