Re: [PATCH 3/3] eventfd: add internal reference counting to fixnotifier race conditions
From: Michael S. Tsirkin
Date: Mon Jun 22 2009 - 14:42:31 EST
On Mon, Jun 22, 2009 at 11:03:22AM -0700, Davide Libenzi wrote:
> In your case of kernel-to-kernel scenario, why would you need eventfd at
> all, if userspace role in that model is simply to create it?
That's not 100% true. We have a mode where userspace is the producer
and/or consumer (migration mode) and we switch between that and
direct kernel-to-kernel communication.
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