From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:52076) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qou7N-0006dh-L5 for qemu-devel@nongnu.org; Thu, 04 Aug 2011 05:21:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Qou7M-00021G-Ml for qemu-devel@nongnu.org; Thu, 04 Aug 2011 05:21:29 -0400 Received: from e28smtp05.in.ibm.com ([122.248.162.5]:58542) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Qou7M-0001yR-19 for qemu-devel@nongnu.org; Thu, 04 Aug 2011 05:21:28 -0400 Received: from d28relay03.in.ibm.com (d28relay03.in.ibm.com [9.184.220.60]) by e28smtp05.in.ibm.com (8.14.4/8.13.1) with ESMTP id p749LJbw030205 for ; Thu, 4 Aug 2011 14:51:19 +0530 Received: from d28av04.in.ibm.com (d28av04.in.ibm.com [9.184.220.66]) by d28relay03.in.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id p749LJU43862584 for ; Thu, 4 Aug 2011 14:51:19 +0530 Received: from d28av04.in.ibm.com (loopback [127.0.0.1]) by d28av04.in.ibm.com (8.14.4/8.13.1/NCO v10.0 AVout) with ESMTP id p749LIe4007623 for ; Thu, 4 Aug 2011 19:21:19 +1000 Message-ID: <4E3A6753.9010708@linux.vnet.ibm.com> Date: Thu, 04 Aug 2011 15:03:07 +0530 From: Supriya Kannery MIME-Version: 1.0 References: <20110727113000.25109.16204.sendpatchset@skannery> <20110727113045.25109.54866.sendpatchset@skannery> <4E300B8E.2020509@codemonkey.ws> <4E3036AA.8030604@codemonkey.ws> <4E36C608.2030107@codemonkey.ws> <4E36C9D3.4020803@redhat.com> <4E36C9F4.2080202@codemonkey.ws> <4E3A590B.1080609@linux.vnet.ibm.com> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [V5 Patch 3/4]Qemu: Command "block_set" for dynamic block params change Reply-To: supriyak@linux.vnet.ibm.com List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: Kevin Wolf , Christoph Hellwig , qemu-devel@nongnu.org On 08/04/2011 02:01 PM, Stefan Hajnoczi wrote: > On Thu, Aug 4, 2011 at 9:32 AM, Supriya Kannery > wrote: >> On 08/01/2011 09:14 PM, Anthony Liguori wrote: >>> On 08/01/2011 10:44 AM, Kevin Wolf wrote: >>>> Am 01.08.2011 17:28, schrieb Anthony Liguori: >>>>>> 2. Top-level command for each parameter (e.g. block_set_hostcache). >>>>>> Supported parameters are easily discoverable via query-commands. If >>>>>> individual block devices support different sets of parameters then >>>>>> they may have to return -ENOTSUPP. >>>>>> >>> >>> For now, using high level commands is the best we can do. >> Will be modifying code to have 'block_set_hostcache' command implemented. >> Along with that, planning to implement 'query-block_set_hostcache', that >> returns current hostcache setting >> for all the applicable block devices. > > I don't think a query command is necessary since query-block already > reports this information. > ok > Stefan