linux-kernel - Re: [KVM PATCH 3/4] eventfd: add generalized notifier interface

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Message-ID: <4A3A8B83.5040002@novell.com>
Date:	Thu, 18 Jun 2009 14:46:27 -0400
From:	Gregory Haskins <ghaskins@...ell.com>
To:	Davide Libenzi <davidel@...ilserver.org>
CC:	kvm@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>, mst@...hat.com, avi@...hat.com,
	paulmck@...ux.vnet.ibm.com, Rusty Russell <rusty@...tcorp.com.au>
Subject: Re: [KVM PATCH 3/4] eventfd: add generalized notifier interface

Davide Libenzi wrote:
> On Thu, 18 Jun 2009, Gregory Haskins wrote:
>
>   
>> We currently open-code notification registration via the f_ops->poll()
>> method of the eventfd.  Lets abstract this into a notification API
>> extension of eventfd, while still using the wait-queue as the underlying
>> mechanism.  This will allow us to manage the notification mechanism
>> internal to eventfd without requiring the clients to change.  This also
>> gives us the opportunity to implement race-free release() callbacks,
>> which we do later in the series.
>>     
>
> Another attempt to push KVM stuff into eventfd.

??  I do not believe there is a single iota of KVM specific code in that
patch.  Can you elaborate?

-Greg


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