Re: [PATCH] Use numa policy API for boot time policy

[Manfred Spraul]

Andi Kleen wrote:

> Suggested by Manfred Spraul.
>
> __get_free_pages had a hack to do node interleaving allocation at boot time.
> This patch sets an interleave process policy using the NUMA API for init
> and the idle threads instead. Before entering the user space init the policy
> is reset to default again. Result is the same.
>
> Advantage is less code and removing of a check from a fast path.
>
> Removes more code than it adds.
>
> I verified that the memory distribution after boot is roughly the same.
>
>  
Does it work for order != 0 allocations? It's important that the big 
hash tables do not end up all in node 0. AFAICS alloc_pages_current() 
calls interleave_nodes() only for order==0 allocs.

--
   Manfred

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