Re: [Patch] x86,pat Update the page flags for memtype atomicallyinstead of using memtype_lock.

[Thomas Gleixner]

On Fri, 12 Mar 2010, Suresh Siddha wrote:
> On Thu, 2010-03-11 at 08:17 -0800, Robin Holt wrote:
> > Changes since -V1:
> > 1) Introduce atomically setting and clearing the page flags and not
> > using the global memtype_lock to protect page->flags.
> > 
> > 2) This allowed me the opportunity to convert the rwlock back into a
> > spinlock and not affect _MY_ tests performance as all the pages my test
> > was utilizing are tracked by struct pages.
> 
> Can you also include this spinlock to rwlock conversion, which can be
> used for non RAM pages as a second patch?

spinlock -> rwlock conversion ? I hope you meant it the other way
round as Robin said in #2 :)

And yes it should be a separate patch.

Thanks,

	tglx

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