Re: [PATCH 3/6] change alloc function in alloc_slab_page

From: Minchan Kim
Date: Tue Apr 13 2010 - 12:01:37 EST


On Wed, Apr 14, 2010 at 12:52 AM, Mel Gorman <mel@xxxxxxxxx> wrote:
> On Wed, Apr 14, 2010 at 12:25:00AM +0900, Minchan Kim wrote:
>> alloc_slab_page never calls alloc_pages_node with -1.
>
> Are you certain? What about
>
> __kmalloc
> Â-> slab_alloc (passed -1 as a node from __kmalloc)
> Â Â-> __slab_alloc
> Â Â Â-> new_slab
> Â Â Â Â-> allocate_slab
> Â Â Â Â Â-> alloc_slab_page
>

Sorry for writing confusing changelog.

I means if node == -1 alloc_slab_page always calls alloc_pages.
So we don't need redundant check.

--
Kind regards,
Minchan Kim
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