Re: [PATCH 2/5] percpu_ida: Move waking up waiters out of atomiccontexts

From: Kent Overstreet
Date: Mon Oct 28 2013 - 17:21:47 EST

On Mon, Oct 28, 2013 at 11:05:25AM +0100, Alexander Gordeev wrote:
> Currently percpu_ida_free() waikes up waiters always with local
> interrupts disabled and sometimes with pool->lock held. Yet, it
> does not appear there is any reason why it could not be done out
> of these atomic contexts.

This should be a noticable performance boost, nested irqsave/restore is painful.

Acked-by: Kent Overstreet <kmo@xxxxxxxxxxxxx>
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