Messages in this thread | | | Date | Thu, 17 Apr 2008 03:18:29 -0700 | From | Andrew Morton <> | Subject | Re: [v2.6.26] what's brewing in x86.git for v2.6.26 |
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On Thu, 17 Apr 2008 12:11:36 +0200 Andi Kleen <andi@firstfloor.org> wrote:
> Andrew Morton <akpm@linux-foundation.org> writes: > > > > Does it really really really need to consume one of our few remaining page > > flags? We'll be in a mess when we run out. > > No we're not. Just the (imho always misguided) "encode zone/node number > into flags" optimization has to be removed again or made 64bit only. > Then there will be plenty of flags again.
hm. Or we add a new nid&zone field to the pageframe for 32bit NUMA. Just don't tell Paul Mundt ;)
Need to work out what's going on with ia64's use of the upper 32 bits too. I have a feeling it's using less than it used too but at 3AM I can't be assed working it out.
> Really I see no real reason this can't be done with a small hash table > again like x86-64 originally did.
How did that work? A pfn->zone-id hash table would be huge?
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