From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:60598)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <wency@cn.fujitsu.com>) id 1YnkRV-0007Kp-IZ
	for qemu-devel@nongnu.org; Thu, 30 Apr 2015 05:07:38 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <wency@cn.fujitsu.com>) id 1YnkRO-0003Ev-D5
	for qemu-devel@nongnu.org; Thu, 30 Apr 2015 05:07:37 -0400
Received: from [59.151.112.132] (port=26147 helo=heian.cn.fujitsu.com)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <wency@cn.fujitsu.com>) id 1YnkRN-0003DA-Ul
	for qemu-devel@nongnu.org; Thu, 30 Apr 2015 05:07:30 -0400
Message-ID: <5541F1B3.6040501@cn.fujitsu.com>
Date: Thu, 30 Apr 2015 17:11:15 +0800
From: Wen Congyang <wency@cn.fujitsu.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Subject: [Qemu-devel] Question about block driver
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: qemu-devl <qemu-devel@nongnu.org>, Fam Zheng <famz@redhat.com>, Stefan Hajnoczi <stefanha@redhat.com>

Hi, all

Some drivers use bdrv_open, while the other dirvers use bdrv_file_open().
What is the difference between bdrv_open() and bdrv_file_open()?

Thanks
Wen Congyang