From patchwork Wed May 30 19:47:59 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 10439783 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 22266601E9 for ; Wed, 30 May 2018 19:53:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 156B3286C1 for ; Wed, 30 May 2018 19:53:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0E5F628397; Wed, 30 May 2018 19:53:38 +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=-7.8 required=2.0 tests=BAYES_00, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI,RCVD_IN_SBL autolearn=ham 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 99EB52943D for ; Wed, 30 May 2018 19:53:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932262AbeE3TwH (ORCPT ); Wed, 30 May 2018 15:52:07 -0400 Received: from a2nlsmtp01-05.prod.iad2.secureserver.net ([198.71.225.49]:37634 "EHLO a2nlsmtp01-05.prod.iad2.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932251AbeE3Ttw (ORCPT ); Wed, 30 May 2018 15:49:52 -0400 Received: from linuxonhyperv2.linuxonhyperv.com ([107.180.71.197]) by : HOSTING RELAY : with SMTP id O75Sf7hbLF1fmO75SfIEQZ; Wed, 30 May 2018 12:48:51 -0700 x-originating-ip: 107.180.71.197 Received: from longli by linuxonhyperv2.linuxonhyperv.com with local (Exim 4.91) (envelope-from ) id 1fO75S-0008Fz-5G; Wed, 30 May 2018 12:48:46 -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 07/15] CIFS: When sending data on socket, pass the correct page offset Date: Wed, 30 May 2018 12:47:59 -0700 Message-Id: <20180530194807.31657-8-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: MS4wfO8CRb4B9gkMMC+3Kk7nmLvb1eLbHisriOoSpwinepjpeNH3pTC19tHDS3ndrePv3yW3mFFJOd8WeXKhjnfbFnVfs59BMXf8RGEpkI0tXES25Dm9xyYt z5IZzT7YLNhg3A5RM8z9HkALCDyggSU3iS2nSrJSwgzvjEaazCKPcRM9+9Yd7vGQhBTnDk5y32XJ9ifldv5M4RmnVqwfHmZpu/ppR1O6N09Z99HGg/fyARPj ciiGSlaiHBXjrq2fXzhaZ/DzboNn7P3q2Eyxwko8H6HhUewLiwmkpEJcF80dZ8LnxBfIQo7ofjm2T/KBjg1ot6Kj2pmHqI1uhCeg7k97tJu8PqfueAok2ZeV CTANKB0T8hXUEk3WH3gUhdvFBvboiHyl4ZrEwpijCTA/+4/gKN1VsQZ9crtiyUq1GXgHdT1K 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;