Re: slab: Remove SLAB_NO_REAP option

From: Pekka Enberg
Date: Sat Feb 25 2006 - 17:13:43 EST


On Fri, 24 Feb 2006, Pekka Enberg wrote:
> > I don't think its worth it. It doesn't make much sense to create a
> > separate object cache if you're not using it, we're better off
> > converting those to kmalloc(). cache_cache is there to make
> > bootstrapping easier, it is very unlikely that you ever have more than
> > one page allocated for that cache which is why scanning the freelist
> > _at all_ is silly. I think SLAB_NO_REAP should go away but we also
> > must ensure we don't introduce a performance regression while doing
> > that.

On Fri, 2006-02-24 at 08:19 -0800, Christoph Lameter wrote:
> Got some way to get rid of cache_cache? Or remove it after boot?

Well, yeah. We can bootsrap a generic cache that can hold sizeof(struct
kmem_cache) first and use that.

Pekka

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