linux-kernel - Re: [PATCHv2 1/3] eventfd: allow atomic read and waitqueue remove

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Message-ID: <4B588B5D.8050802@redhat.com>
Date:	Thu, 21 Jan 2010 19:14:05 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Davide Libenzi <davidel@...ilserver.org>
CC:	"Michael S. Tsirkin" <mst@...hat.com>, mtosatti@...hat.com,
	kvm@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCHv2 1/3] eventfd: allow atomic read and waitqueue remove

On 01/21/2010 07:13 PM, Avi Kivity wrote:
>
> But I think we can solve this in another way in .32: we can clear the 
> eventfd from irqfd->inject work, which is in process context.  The new 
> stuff is only needed for lockless clearing, no?
>

I meant atomic clearing, when we inject interrupts from the irqfd atomic 
context.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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