From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:51946) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QFmeg-0007vb-M3 for qemu-devel@nongnu.org; Fri, 29 Apr 2011 08:18:43 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QFmef-0002Ct-Th for qemu-devel@nongnu.org; Fri, 29 Apr 2011 08:18:42 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45708) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QFmef-0002Cg-KT for qemu-devel@nongnu.org; Fri, 29 Apr 2011 08:18:41 -0400 Message-ID: <4DBAAD2A.3080906@redhat.com> Date: Fri, 29 Apr 2011 14:20:58 +0200 From: Kevin Wolf MIME-Version: 1.0 References: <1303910855-28999-1-git-send-email-stefanha@linux.vnet.ibm.com> <1303910855-28999-7-git-send-email-stefanha@linux.vnet.ibm.com> In-Reply-To: <1303910855-28999-7-git-send-email-stefanha@linux.vnet.ibm.com> Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 6/8] blockdev: Allow image files to auto-enable streaming List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: Anthony Liguori , qemu-devel@nongnu.org Am 27.04.2011 15:27, schrieb Stefan Hajnoczi: > Image files that having streaming enabled will automatically begin > streaming when opened. > > Signed-off-by: Stefan Hajnoczi Hm... I wasn't really happy about images that do copy on read even if I didn't tell qemu so on the command line. Now they can start to copy data and use up my internet connection even without the guest really accessing the data. This seems to be one step more that I find rather questionable. Anyway, same as for copy on read: While we can discuss _allowing_ it in backing files, it's definitely not suitable as a primary interface. Kevin