Re: [Xen-devel] __va() vs phys_to_virt()

[Dave Hansen <haveblue@xxxxxxxxxx>]

On Fri, 2005-03-18 at 12:32 -0600, Hollis Blanchard wrote:
> Can someone explain where it's appropriate to use __va() and where 
> phys_to_virt() should be used instead? Or are they truly synonymous, and we 
> should phase out one or the other?

One minor thing on some Linux arches is that virt_to_phys() is volatile,
__pa() is just a macro, so they have different optimization rules.

-- Dave



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