* Christoph Lameter <clameter@sgi.com> wrote:it is the right fix. The architecture memory setup code doesnt even _know_ the limits at this place in an open-coded way (and shouldnt know them) - and even later on we use pfn_valid() to determine whether to attempt to get to a struct page and free it into the buddy. [ Of course the architecture code in general 'knows' about the limits - but still it's cleaner to have a dumb enumeration interface here combined with a resilient core code - that's always going to be less fragile. ] btw., i just did some bug history analysis, the calls were originally added when sparsemem support was added: | commit 215c3409eed16c89b6d11ea1126bd9d4f36b9afd | Author: Andy Whitcroft <apw@shadowen.org> | Date: Fri Jan 6 00:12:06 2006 -0800 | | [PATCH] i386 sparsemem for single node systems in v2.6.15-1003-g215c340. (so this is appears to be an unfixed bug in v2.6.16 as well) Ingo --
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