On Tue, Aug 09, 2005 at 02:59:53PM +1000, Nick Piggin wrote: > That would work for swsusp, but there are other users that want to > know if a struct page is valid ram (eg. ioremap), so in that case > swsusp would not be able to mess with the flag.
The usage of "valid ram" here is confusing - that's not what PageReserved is all about. It's about valid RAM which is managed by method other than the usual page counting. Non-reserved RAM is also valid RAM, but is managed by the kernel in the usual way. The former is available for remap_pfn_range and ioremap, the latter is not. On the other hand, the validity of an apparant RAM address can only be tested using its pfn with pfn_valid(). Can we straighten out the terminology so it's less confusing please? -- Russell King Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core - 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/
