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=-8.6 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 3BBAFC43387 for ; Mon, 17 Dec 2018 20:22:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0578021473 for ; Mon, 17 Dec 2018 20:22:55 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="uUpc9hwq" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389535AbeLQUWy (ORCPT ); Mon, 17 Dec 2018 15:22:54 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:43532 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726653AbeLQUWx (ORCPT ); Mon, 17 Dec 2018 15:22:53 -0500 Received: by mail-pf1-f194.google.com with SMTP id w73so6908785pfk.10 for ; Mon, 17 Dec 2018 12:22:53 -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=5oYSW/GvpO5Jr2lAVUEKxgPmdiaC90t9yQ4KohCOQbY=; b=uUpc9hwqBACC1ZZmRW2aJsERMSJYQSVWUZFU0pgyeaJfu045oCUzYU8kMbaQ6ZcswG cFnF7lbG8tboEYSgWHBixo5XTCn6nKmuO3d8msyYCleyVTR2qX22tayUeQ1wmuMoVRwJ VrbmiaIaYzoTlf4ZGENyW19EFsqEHXYXe9bvt3o4HL03lfBc/25uinXGuzEpMxuGiNNb vP/QGj4O7JdWYnb4pQ4Sp++kzTjEym3CCaLCMzy2ECrFxoW1FDGtTK/6IYn2AuBSNMJr bJ9VX56znbPJzTEv4tUW1S/bmY7fT2QSIaDklkp7DHN7svgrhsUTgRGVzN5ZtM0wLrV0 GX7g== 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=5oYSW/GvpO5Jr2lAVUEKxgPmdiaC90t9yQ4KohCOQbY=; b=Y6A6rosx20er65SPBa5VqomZ62Owyo5lguEcbgSG5RHWiuGHb2wpQUVmaVNqgXnwYu ZDp/izPDqb2WIHBcQdb7GN0g234v3tUKcTh52s1GWgbP5yCeRK53eex4UB/xX9UzWWmm /4K4GJNl6AoHI4qGu2q+DRc7g8rMJ1tq36XT7xQqGvShqh2j1/mswwKx6jbQwVS+G+Ai 56vYsJG+ae1jYaagUiGdn/y6mVNyFiFGeh0ia7tTqpAsNLbXyx0fcdpyGYrSO5ThD6TF DrP+AJqG27bEAVFc0mKo1K12jHUFZ/g1Ron6wH0XbeEgPYFttVbFEDrocshiDti3ILec FgoQ== X-Gm-Message-State: AA+aEWY6qfshk3ZdJOK8pjRXTuwPy/ofGsR2LxKUiICXL5F6We0+YUDk 4nv1VZwtI7sXRBi2lwqFQZ7vn6mc X-Google-Smtp-Source: AFSGD/UQwbbHHDgaOIDkqKpoGY4JfB62/5kRzA0kZTM7mwQtu/OWvxDxGYC44oQHanjoZ9eudkvANg== X-Received: by 2002:a62:5f07:: with SMTP id t7mr6183800pfb.108.1545078172823; Mon, 17 Dec 2018 12:22:52 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.98.208]) by smtp.gmail.com with ESMTPSA id b68sm21581385pfg.160.2018.12.17.12.22.51 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 17 Dec 2018 12:22:51 -0800 (PST) Date: Tue, 18 Dec 2018 01:56:44 +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 v4 9/9] xen/privcmd-buf.c: Convert to use vm_insert_range Message-ID: <20181217202644.GA19376@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..d31b837 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