Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753574AbaAJWtg (ORCPT ); Fri, 10 Jan 2014 17:49:36 -0500 Received: from mo4-p04-ob.smtp.rzone.de ([81.169.146.179]:34125 "EHLO mo4-p04-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751247AbaAJWte (ORCPT ); Fri, 10 Jan 2014 17:49:34 -0500 X-RZG-CLASS-ID: mo04 X-RZG-AUTH: :P2EQZWCpfu+qG7CngxMFH1J+yackYocTD1iAi8x+OWJ4Kkzc/qnW2/7iWQ== Date: Fri, 10 Jan 2014 23:49:27 +0100 From: Olaf Hering To: Boris Ostrovsky Cc: david.vrabel@citrix.com, xen-devel@lists.xen.org, linux-kernel@vger.kernel.org Subject: Re: [Xen-devel] [PATCH] xen-blkfront: remove type check from blkfront_setup_discard Message-ID: <20140110224927.GA14824@aepfle.de> References: <1389371301-29532-1-git-send-email-olaf@aepfle.de> <52D036FC.6000308@oracle.com> <20140110213746.GA933@aepfle.de> <52D073F0.5020400@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <52D073F0.5020400@oracle.com> User-Agent: Mutt/1.5.22.rev6346 (2013-10-29) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jan 10, Boris Ostrovsky wrote: > I think we should at clear feature_discard and print an error in the log if > *either* of xenbus_gather() calls fail. Are you sure about that? AFAIK many other properties are optional as well. I dont think there is a formal spec about the discard related properties. Should every backend be required to provide all four properties? Olaf -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/