Re: [PATCH 03/25] Do not check NUMA node ID when the caller knows the node is valid

Paul Mundt
2009-04-21T06:38:11Z

On Mon, Apr 20, 2009 at 11:19:49PM +0100, Mel Gorman wrote:
> Callers of alloc_pages_node() can optionally specify -1 as a node to mean
> "allocate from the current node". However, a number of the callers in fast
> paths know for a fact their node is valid. To avoid a comparison and branch,
> this patch adds alloc_pages_exact_node() that only checks the nid with
> VM_BUG_ON(). Callers that know their node is valid are then converted.
>
> Signed-off-by: Mel Gorman <mel@csn.ul.ie>
> Reviewed-by: Christoph Lameter <cl@linux-foundation.org>

For the SLOB NUMA bits:

Acked-by: Paul Mundt <lethal@linux-sh.org>