Re: [PATCH v2] x86, mm: Avoid duplicated pxm_to_node() calling.

[David Rientjes]

On Sun, 26 Jan 2014, Yinghai Lu wrote:

> In slit init code, more pxm_to_node() calling are added.
> 
> We can store from_node/to_node instead of keep calling pxm_to_node().
> 
> After this patch: pxm_to_node() is called n*(1+n)
> Before this patch: pxm_to_node() is called n*(1+n*3)
> 
> for 8 socket, it will be 72 instead of 200.
> for 32 socket, it will be 1056 instead of 3104.
> 
> -v2: update title and change log according to Ingo.
>      move from_node/to_node in loop and change to const according to
> 	David Rientjes.
> 
> Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
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