Re: [patch 1/2]percpu_ida: fix a live lock

From: Christoph Hellwig
Date: Mon Feb 10 2014 - 11:16:42 EST


On Mon, Feb 10, 2014 at 04:49:17PM +0100, Alexander Gordeev wrote:
> > Do we really always need the pool for these classes of devices?
> >
> > Pulling tags from local caches to the pool just to (near to) dry it at
> > the very next iteration does not seem beneficial. Not to mention caches
> > vs pool locking complexities.
>
> And I meant here we do not scrap per cpu allocations.

I'm still a bit confused at what you're proposing. Part of the problem
might be that I'm not exactly familar with the allocator and am just
looking it from a consumer perspective.

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