From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:59790)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <paolo.bonzini@gmail.com>) id 1c74ys-0008TY-Sx
	for qemu-devel@nongnu.org; Wed, 16 Nov 2016 13:30:48 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <paolo.bonzini@gmail.com>) id 1c74yo-0004Mc-MO
	for qemu-devel@nongnu.org; Wed, 16 Nov 2016 13:30:46 -0500
Received: from mail-wm0-x241.google.com ([2a00:1450:400c:c09::241]:33857)
	by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
	(Exim 4.71) (envelope-from <paolo.bonzini@gmail.com>)
	id 1c74yo-0004MF-9q
	for qemu-devel@nongnu.org; Wed, 16 Nov 2016 13:30:42 -0500
Received: by mail-wm0-x241.google.com with SMTP id g23so13913084wme.1
	for <qemu-devel@nongnu.org>; Wed, 16 Nov 2016 10:30:42 -0800 (PST)
Sender: Paolo Bonzini <paolo.bonzini@gmail.com>
References: <1479318422-10979-1-git-send-email-stefanha@redhat.com>
	<1479318422-10979-3-git-send-email-stefanha@redhat.com>
From: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <2e8fa643-3b03-cde2-1a78-aeaac511f636@redhat.com>
Date: Wed, 16 Nov 2016 19:30:38 +0100
MIME-Version: 1.0
In-Reply-To: <1479318422-10979-3-git-send-email-stefanha@redhat.com>
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
Subject: Re: [Qemu-devel] [PATCH v2 2/4] aio: add polling mode to AioContext
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel/>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Stefan Hajnoczi <stefanha@redhat.com>, qemu-devel@nongnu.org
Cc: borntraeger@de.ibm.com, Karl Rister <krister@redhat.com>, Fam Zheng <famz@redhat.com>



On 16/11/2016 18:47, Stefan Hajnoczi wrote:
> +        if (max_ns && run_poll_handlers(ctx, max_ns)) {
> +            atomic_sub(&ctx->notify_me, 2);
> +            blocking = false; /* poll again, don't block */

You don't need to poll---you only need to run bottom halves and timers.

Paolo

> +            progress = true;
> +        }
> +    }