From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id BA17AC04EB8 for ; Thu, 6 Dec 2018 18:42:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7FE12208E7 for ; Thu, 6 Dec 2018 18:42:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gidEjeZS" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7FE12208E7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726090AbeLFSmA (ORCPT ); Thu, 6 Dec 2018 13:42:00 -0500 Received: from mail-pl1-f194.google.com ([209.85.214.194]:36880 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725908AbeLFSl7 (ORCPT ); Thu, 6 Dec 2018 13:41:59 -0500 Received: by mail-pl1-f194.google.com with SMTP id b5so568932plr.4 for ; Thu, 06 Dec 2018 10:41:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent; bh=QkAoEj0L9qsuE5G4ssoKQbBfw8UWUhYAoif7GyqYqTE=; b=gidEjeZSbgItFGgWuJFdFe/ifliMLckszZaKhuDF0zT/ioQ/oR6cL7ETSduh8Iu7Ik nS1fUixG86BlJLDTz1MwqqLTuw9w3Ln38dTpDkXEWmtIOCQex1iam9lHoAbBENd9Bj4N DB4oeLz+ZVvBocvnc+0Iff/c+zSLTVwDJQ7NTOSjuFH1bbVlk82jqaugJMfPoMbGvfTj gqJG68rpZMa6/x5sl++Db1yULJskHuJuSMOhe656RDv6HOhIt5hgIMwL+ZSAQfMvR9U0 U7FElxxBVFgtH/SYb7JK+Qwm/bqeDstaOWXtmI1Rw1ueeRLaDLZBGqHc8VtU4GDS3vRI RSzQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=QkAoEj0L9qsuE5G4ssoKQbBfw8UWUhYAoif7GyqYqTE=; b=QZi/SbzuudGFrYGTVMWOTZa0IlNmrFvBXoX6GiL+kIEJdNx2ZtGYGTJTgeXd4Cbxd0 Q7GwCEiLRa6JOY0R15ZseI7txy/e+mLenthDkifu0SPZgd4f04w4n/m2lqlI+dPkw8kN 87BkPFvyUs1/j0ByQbQhcs2cuvqLEZEJRhWJDbkrN6pVFv+32y5Ra+/bJcOwf7TZ66hy BUkkj0J9kRmkf/aLHC4hsY02y0IXxIZbHG8nzMRlWWFBLU2CzHFQ8hgyzpRSreW0Ct/n gyUV+CjAi67VPX8SND//qLq81/CAsPaAXBuzQClfNNcC1jnfIUSUAS39qD46ayIMitmy z27A== X-Gm-Message-State: AA+aEWYiJ+rJdjCbgxlxGqfHEP8mhfxQwAmqj9HitvHPAeNkiyNJ8hhp VHh40MHBEAomkPgyA0eCh0g= X-Google-Smtp-Source: AFSGD/WPPXRIO+khmBGTNbV0MDnldPRG23ivTHyBZ4IX8eX79jqs4heYiOhzo6Y54/NC8l3kR3/n+w== X-Received: by 2002:a17:902:1105:: with SMTP id d5mr28133182pla.47.1544121719014; Thu, 06 Dec 2018 10:41:59 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.99.39]) by smtp.gmail.com with ESMTPSA id 184sm1407299pfe.106.2018.12.06.10.41.57 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 06 Dec 2018 10:41:58 -0800 (PST) Date: Fri, 7 Dec 2018 00:15:45 +0530 From: Souptick Joarder To: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, boris.ostrovsky@oracle.com, jgross@suse.com Cc: xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH v3 9/9] xen/privcmd-buf.c: Convert to use vm_insert_range Message-ID: <20181206184545.GA847@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Convert to use vm_insert_range() to map range of kernel memory to user vma. Signed-off-by: Souptick Joarder Reviewed-by: Matthew Wilcox Reviewed-by: Boris Ostrovsky --- drivers/xen/privcmd-buf.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/xen/privcmd-buf.c b/drivers/xen/privcmd-buf.c index df1ed37..8d8255b 100644 --- a/drivers/xen/privcmd-buf.c +++ b/drivers/xen/privcmd-buf.c @@ -180,12 +180,8 @@ static int privcmd_buf_mmap(struct file *file, struct vm_area_struct *vma) if (vma_priv->n_pages != count) ret = -ENOMEM; else - for (i = 0; i < vma_priv->n_pages; i++) { - ret = vm_insert_page(vma, vma->vm_start + i * PAGE_SIZE, - vma_priv->pages[i]); - if (ret) - break; - } + ret = vm_insert_range(vma, vma->vm_start, vma_priv->pages, + vma_priv->n_pages); if (ret) privcmd_buf_vmapriv_free(vma_priv); -- 1.9.1