From patchwork Sat Nov 18 09:14:23 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: tang.wenji@zte.com.cn X-Patchwork-Id: 10064625 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 C194060352 for ; Sat, 18 Nov 2017 09:14:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BBDF92A76F for ; Sat, 18 Nov 2017 09:14:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B0C8D2A7D2; Sat, 18 Nov 2017 09:14:51 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI 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 40B512A76F for ; Sat, 18 Nov 2017 09:14:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932517AbdKRJOu (ORCPT ); Sat, 18 Nov 2017 04:14:50 -0500 Received: from mxhk.zte.com.cn ([63.217.80.70]:50904 "EHLO mxhk.zte.com.cn" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1163169AbdKRJO0 (ORCPT ); Sat, 18 Nov 2017 04:14:26 -0500 Received: from mse01.zte.com.cn (unknown [10.30.3.20]) by Forcepoint Email with ESMTPS id 0FD26858C24ABA68932; Sat, 18 Nov 2017 17:14:14 +0800 (CST) Received: from notes_smtp.zte.com.cn ([10.30.1.239]) by mse01.zte.com.cn with ESMTP id vAI9EAYl057348; Sat, 18 Nov 2017 17:14:10 +0800 (GMT-8) (envelope-from tang.wenji@zte.com.cn) Received: from localhost.localdomain ([10.118.202.203]) by szsmtp06.zte.com.cn (Lotus Domino Release 8.5.3FP6) with ESMTP id 2017111817142148-1877570 ; Sat, 18 Nov 2017 17:14:21 +0800 From: tang.wenji@zte.com.cn To: Nicholas Bellinger Cc: target-devel@vger.kernel.org, tangwenji Subject: [PATCH] fix page addr in tcmu_flush_dcache_range Date: Sat, 18 Nov 2017 17:14:23 +0800 Message-Id: <1510996463-26020-1-git-send-email-tang.wenji@zte.com.cn> X-Mailer: git-send-email 1.8.3.1 X-MIMETrack: Itemize by SMTP Server on SZSMTP06/server/zte_ltd(Release 8.5.3FP6|November 21, 2013) at 2017-11-18 17:14:21, Serialize by Router on notes_smtp/zte_ltd(Release 9.0.1FP7|August 17, 2016) at 2017-11-18 17:13:51, Serialize complete at 2017-11-18 17:13:51 X-MAIL: mse01.zte.com.cn vAI9EAYl057348 Sender: target-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: target-devel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: tangwenji The page addr should be update. Signed-off-by: tangwenji Reviewed-by: Mike Christie --- drivers/target/target_core_user.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 942d0942..82dc246 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -470,12 +470,13 @@ static struct tcmu_cmd *tcmu_alloc_cmd(struct se_cmd *se_cmd) static inline void tcmu_flush_dcache_range(void *vaddr, size_t size) { unsigned long offset = offset_in_page(vaddr); + void *start = vaddr - offset; size = round_up(size+offset, PAGE_SIZE); - vaddr -= offset; while (size) { - flush_dcache_page(virt_to_page(vaddr)); + flush_dcache_page(virt_to_page(start)); + start += PAGE_SIZE; size -= PAGE_SIZE; } }