linux-kernel - Re: [PATCH][PCI]: Introduce pci_find_capability

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Message-Id: <200805161201.48644.jbarnes@virtuousgeek.org>
Date:	Fri, 16 May 2008 12:01:48 -0700
From:	Jesse Barnes <jbarnes@...tuousgeek.org>
To:	Arnaldo Carvalho de Melo <acme@...hat.com>
Cc:	Matthew Wilcox <matthew@....cx>, linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org, linux-rt-users@...r.kernel.org
Subject: Re: [PATCH][PCI]: Introduce pci_find_capability_cached and make MSI use it

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 
weekend).

Jesse
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