Re: [RFT PATCH] blkio: alloc per cpu data from worker threadcontext( Re: kvm deadlock)

[Tejun Heo]

Hello, Vivek.

On Mon, Dec 19, 2011 at 01:27:17PM -0500, Vivek Goyal wrote:
> Ok, that's good to know. If per cpu allocator can support this use case,
> it will be good for 3.3 onwards. This seems to be right way to go to fix
> the problem.

Ummm... if we're gonna make percpu usable w/ GFP_NOIO, the right
interim solution would be making a simplistic mempool so that later
when percpu can do it, it can be swapped easily.  I really can't see
much benefit of adding refcnting on top of everything just for this.

Thanks.

-- 
tejun
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