On Tue, 9 Aug 2005, Russell King wrote:
> 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. That's not true. We have "struct page" show up for the ISA legacy MMIO region too, for example. Linus - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/