Re: [v2.6.26] what's brewing in x86.git for v2.6.26

From: Andi Kleen
Date: Thu Apr 17 2008 - 06:12:31 EST


Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> 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.

Really I see no real reason this can't be done with a small hash table
again like x86-64 originally did.

-Andi
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