Re: [PATCHSET] block, mempool, percpu: implement percpu mempooland fix blkcg percpu alloc deadlock

From: Tejun Heo
Date: Tue Dec 27 2011 - 19:41:32 EST


On Wed, Dec 28, 2011 at 09:14:02AM +0900, KAMEZAWA Hiroyuki wrote:
> > This is essentially more specialized form of the mempool approach. It
> > doesn't seem any simpler to me while being less generic. I don't see
> > what the upside would be.
> Hm, but this never causes -ENOMEM error, at all.

Ooh, I missed the part it falls back to the global counter if percpu
counters aren't allocated yet. Yeah, this is an interesting approach.
I'll think more about it.


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