From patchwork Wed May 30 19:48:07 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 922984 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=linuxonhyperv.com Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 40x1R34M73z9s0q for ; Thu, 31 May 2018 05:50:23 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932359AbeE3TuW (ORCPT ); Wed, 30 May 2018 15:50:22 -0400 Received: from a2nlsmtp01-03.prod.iad2.secureserver.net ([198.71.225.37]:57164 "EHLO a2nlsmtp01-03.prod.iad2.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753556AbeE3TuJ (ORCPT ); Wed, 30 May 2018 15:50:09 -0400 Received: from linuxonhyperv2.linuxonhyperv.com ([107.180.71.197]) by : HOSTING RELAY : with SMTP id O75ofmcAedjTiO75ofBjha; Wed, 30 May 2018 12:49:08 -0700 x-originating-ip: 107.180.71.197 Received: from longli by linuxonhyperv2.linuxonhyperv.com with local (Exim 4.91) (envelope-from ) id 1fO75o-0008Gn-9M; Wed, 30 May 2018 12:49:08 -0700 From: Long Li To: Steve French , linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Cc: Long Li Subject: [Patch v2 15/15] CIFS: Add direct I/O functions to file_operations Date: Wed, 30 May 2018 12:48:07 -0700 Message-Id: <20180530194807.31657-16-longli@linuxonhyperv.com> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180530194807.31657-1-longli@linuxonhyperv.com> References: <20180530194807.31657-1-longli@linuxonhyperv.com> Reply-To: longli@microsoft.com X-CMAE-Envelope: MS4wfHt0u8uYpgPH52yJw+53ktd7A7jZoCV+8C7XONbp+Z5jrUDW4a6UXVB0q24EItuHqvhY6bxHSs01KrRGknmzeuUzv7wMb9MSk2yKPEGqZ8an2qjbhHDk kMndfLr5Jq2J6vfKeuyYCR+wCeSS+4tdZI/U0n+57FX6yNvJlXHqkIbHWCrt80sIAvVwQD7plDCncP7l8BQAr/e2ACQNJd5h94giFeRq9K8jr8L72moAcmgn jne6lFst7AWNFGOCeOexOtV/was8bIRgTZEQXmIBi5h6V4KHVA3LLQufoR/MwGeBWFNk4+8itWD2E1/Xbfy9Sn1jGJeq0dSPtmQvK4e3jZqGH60r/zK5z0Fp b3wJVZ+1uoiXu3uNUoV4T/INYZE8+qWTgF3Nzoiu2OJPSNaF9uzbSPp7Jus73psWGEvUR10Z Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org From: Long Li With direct read/write functions implemented, add them to file_operations. When mounting with "cache=none", CIFS uses direct I/O. Signed-off-by: Long Li --- fs/cifs/cifsfs.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 62f1662..e84f8c2 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -1113,9 +1113,8 @@ const struct file_operations cifs_file_strict_ops = { }; const struct file_operations cifs_file_direct_ops = { - /* BB reevaluate whether they can be done with directio, no cache */ - .read_iter = cifs_user_readv, - .write_iter = cifs_user_writev, + .read_iter = cifs_direct_readv, + .write_iter = cifs_direct_writev, .open = cifs_open, .release = cifs_close, .lock = cifs_lock,