Re: slab: setup allocators earlier in the boot sequence

From: Christoph Lameter
Date: Fri Jun 12 2009 - 10:08:36 EST


On Fri, 12 Jun 2009, Pekka Enberg wrote:

> The problem here is that it's not enough that we make GFP_RECLAIM_MASK a
> variable. There are various _debugging checks_ that happen much earlier
> than that. We need to mask out those too which adds overhead to
> kmalloc() fastpath, for example.

True. The GFP_RECLAIM_MASK only addresses the passing of gfp flags from a
derived allocator to the page allocator. It will deal only with the issue
of GFP_WAIT handling.


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