Re: [PATCH 2/2] mm: page_alloc: Add unlikely for MAX_ORDER check

[zhouxinxing <xinxing2zhou@xxxxxxxxx>]

unlikely indeed makes this code more elegant, however, it's difficult to tell how much the performance will be improved.

David Rientjes <rientjes@xxxxxxxxxx> wrote:

On Sun, 28 Jul 2013, SeungHun Lee wrote:

"order >= MAX_ORDER" case is occur rarely.

So I add unlikely for this check.

This needs your signed-off-by line.

When that's done:

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

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