Re: slab: Remove SLAB_NO_REAP option

[Pekka Enberg]

On Thu, 2006-02-23 at 09:20 -0800, Christoph Lameter wrote:
> On Thu, 23 Feb 2006, Pekka J Enberg wrote:
> 
> > We need _something_ to avoid excessive scanning of cache_cache. It takes a 
> > hell of a lot insmod/rmmod to actually free a full page. Maybe something 
> > like this (totally untested) patch?
> 
> What excessive scanning of cache_cache? If the per cpu cache of 
> cache_cache has been drained then there will be no scanning just an 
> inspection if there are zero elements.

Look at the loop, it is redundant work (like acquiring/releasing a
spinlock). The cache_cache is practically static, which is why it makes
sense to leave it alone.

				Pekka

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