Messages in this thread | | | Subject | Re: [RFC][patch 0/2] mm: remove PageReserved | From | Arjan van de Ven <> | Date | Tue, 09 Aug 2005 15:26:35 +0200 |
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On Tue, 2005-08-09 at 23:15 +1000, Nick Piggin wrote:
> I understand what you mean, and I agree. Though as far away from the > business end of the drivers I am, I tend to get the feeling that > drivers need the most hand holding.
they do. It's important to make driver APIs as fool proof as possible.
> > Anyway, I guess the way to understand the problem is finding the > reason why ioremap checks PageReserved, and whether or not ioremap > should be expected (or allowed) to remap physical RAM in use by > the kernel.
I can't think of ANY valid reason for that, in fact, it'll break a lot due to cache aliases etc etc, on various cpus if not even on x86
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