Re: [RFC][patch 0/2] mm: remove PageReserved

Russell King
2005-08-09T19:41:00Z

On Tue, Aug 09, 2005 at 07:38:52AM -0700, Martin J. Bligh wrote:
> pfn_valid() doesn't tell you it's RAM or not - it tells you whether you
> have a backing struct page for that address. Could be an IO mapped device,
> a small memory hole, whatever.

The only things which have a struct page is RAM. Nothing else does.

--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core