From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Steve Wise" Subject: RE: [PATCH v1 05/18] xprtrdma: Avoid using Write list for small NFS READ requests Date: Mon, 11 Apr 2016 15:35:35 -0500 Message-ID: <033901d19431$b3725d20$1a571760$@opengridcomputing.com> References: <20160411200323.20531.8893.stgit@manet.1015granger.net> <20160411201050.20531.53651.stgit@manet.1015granger.net> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20160411201050.20531.53651.stgit-FYjufvaPoItvLzlybtyyYzGyq/o6K9yX@public.gmane.org> Content-Language: en-us Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: 'Chuck Lever' , linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-rdma@vger.kernel.org > Avoid the latency and interrupt overhead of registering a Write > chunk when handling NFS READ requests of a few hundred bytes or > less. > > This change does not interoperate with Linux NFS/RDMA servers > that do not have commit 9d11b51ce7c1 ('svcrdma: Fix send_reply() > scatter/gather set-up'). > > $ git describe 9d11b51ce7c1 > v4.2-rc3-10-g9d11b51 > Hey Chuck, Is there any way to avoid breaking interoperability with older servers? Steve -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html