Messages in this thread | | | Date | Tue, 9 May 2006 09:05:28 -0700 | From | mike kravetz <> | Subject | Re: [PATCH] SPARSEMEM + NUMA can't handle unaligned memory regions? |
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On Tue, May 09, 2006 at 02:34:51PM +0100, Andy Whitcroft wrote: > 3) record the nid -- when we record the memory present in the system we > are passed the nid. > > Somehow the last of these seems the most logical given we have the > correct information at the time we record that we need to instantiate > the section. So I had a quick go at something which seems to have come > out pretty clean. Attached is a completly untested patch to show what I > am proposing.
Looks sane to me. I've always wanted to encode the nid in the section. But, never had a compelling reason to do so.
With this code in place, we could optimize the pfn_to_nid() routines to now obtain the nid from the section (rather than page struct). However, I'm not sure this is worth the effort.
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