From patchwork Sat Sep 8 02:13:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 10592851 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 10890920 for ; Sat, 8 Sep 2018 02:16:29 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 09CC42B684 for ; Sat, 8 Sep 2018 02:16:29 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F29562B68A; Sat, 8 Sep 2018 02:16:28 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AA55E2B684 for ; Sat, 8 Sep 2018 02:16:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726709AbeIHG7N (ORCPT ); Sat, 8 Sep 2018 02:59:13 -0400 Received: from a2nlsmtp01-02.prod.iad2.secureserver.net ([198.71.225.36]:47264 "EHLO a2nlsmtp01-02.prod.iad2.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726534AbeIHG7M (ORCPT ); Sat, 8 Sep 2018 02:59:12 -0400 Received: from linuxonhyperv2.linuxonhyperv.com ([107.180.71.197]) by : HOSTING RELAY : with ESMTP id ySlWfRM0jWFPMySlWffcwP; Fri, 07 Sep 2018 19:14:26 -0700 x-originating-ip: 107.180.71.197 Received: from longli by linuxonhyperv2.linuxonhyperv.com with local (Exim 4.91) (envelope-from ) id 1fySlW-0005E5-CW; Fri, 07 Sep 2018 19:14:26 -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 v3 07/16] CIFS: When sending data on socket, pass the correct page offset Date: Sat, 8 Sep 2018 02:13:39 +0000 Message-Id: <20180908021348.19956-8-longli@linuxonhyperv.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180908021348.19956-1-longli@linuxonhyperv.com> References: <20180908021348.19956-1-longli@linuxonhyperv.com> Reply-To: longli@microsoft.com X-CMAE-Envelope: MS4wfH3wLEz7F5Y/hb80dc49JOhZ0gCNPr+ZOf8QbRBCZLc5yBnOfXjo5cFqDxST9SqdS2F/MyKx4CukAenn4PlZA16qYmrA8wPDzFkjfMI5O1hytgiAeoIS 4QRBIMwoCdj5Lay0IupNKS3hqHT1x6WbFbnhrKF+iZQ97Q5R1qewSiHDL6WYQm90a4+zD9mV1stFVo9SzRmDBGi0bJKkLkEDisl0WkjF/Y0Zs0VF4a4tELKx stAz960YEaKhm3kFdyVNw1V1CNzNrS6Un5wDDz7N3dD53q9TwQMDOHq1ThwvPQ6jPjS7db9+E+nOg2HDFOoI4x5F96c/YUEgd471uPSCVIIxi8szCROhnLe1 qCH6zHU84S9WhhER5RWncSPNDFc+kvaUwpY6PkzbDk9yD4GGuCwRL9v01rCLbAqKVXPT3p/2 Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Long Li It's possible that the offset is non-zero in the page to send, change the function to pass this offset to socket. Signed-off-by: Long Li --- fs/cifs/transport.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c index d6b5523..5c96ee8 100644 --- a/fs/cifs/transport.c +++ b/fs/cifs/transport.c @@ -288,15 +288,13 @@ __smb_send_rqst(struct TCP_Server_Info *server, struct smb_rqst *rqst) /* now walk the page array and send each page in it */ for (i = 0; i < rqst->rq_npages; i++) { - size_t len = i == rqst->rq_npages - 1 - ? rqst->rq_tailsz - : rqst->rq_pagesz; - struct bio_vec bvec = { - .bv_page = rqst->rq_pages[i], - .bv_len = len - }; + struct bio_vec bvec; + + bvec.bv_page = rqst->rq_pages[i]; + rqst_page_get_length(rqst, i, &bvec.bv_len, &bvec.bv_offset); + iov_iter_bvec(&smb_msg.msg_iter, WRITE | ITER_BVEC, - &bvec, 1, len); + &bvec, 1, bvec.bv_len); rc = smb_send_kvec(server, &smb_msg, &sent); if (rc < 0) break;