Re: slab: setup allocators earlier in the boot sequence

Nick Piggin
2009-06-12T08:19:55Z

On Fri, Jun 12, 2009 at 11:04:39AM +0300, Pekka Enberg wrote:
> Hi Nick,
>
> On Fri, 2009-06-12 at 10:02 +0200, Nick Piggin wrote:
> > Fair enough, but this can be done right down in the synchronous
> > reclaim path in the page allocator. This will catch more cases
> > of code using the page allocator directly, and should be not
> > as hot as the slab allocator.
>
> So you want to push the local_irq_enable() to the page allocator too? We

Well it would be nice to expose some page allocator functionality
at a bit lower level, yes. Like another thing is to avoid atomic
refcounting when there is no need for it (eg. in allocations for slab).

> can certainly do that but I think we ought to wait for Andrew to merge
> Mel's patches to mainline first, OK?

Sure.