Re: [PATCH] x86: create array based interface to change page attribute

[Arjan van de Ven]

Thomas Hellström wrote:
> Ouch, so we'll be needing an ioremap_wc(), I guess. We probably 
> shouldn't use the linear kernel map for this anyway, since that would 
> require a chipset flush for each ring commit.  We can actually use 
> vmap() with a wc page protection for that, but an ioremap_wc() would 
> certainly save us a lot of trouble.

please don't use vmap() as a hack for mapping IO memory when you should use ioremap_wc()....
Lets get this thing right rather than finding whichever hack of the day
happens to work with the implementation from yesterday.
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