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=-8.3 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,URIBL_BLOCKED,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 C23B2C43441 for ; Thu, 15 Nov 2018 15:47:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8BBA22146D for ; Thu, 15 Nov 2018 15:47:51 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="FqwlFq7R" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8BBA22146D 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 S2388769AbeKPB4L (ORCPT ); Thu, 15 Nov 2018 20:56:11 -0500 Received: from mail-pg1-f193.google.com ([209.85.215.193]:44582 "EHLO mail-pg1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388226AbeKPB4K (ORCPT ); Thu, 15 Nov 2018 20:56:10 -0500 Received: by mail-pg1-f193.google.com with SMTP id t13so529035pgr.11 for ; Thu, 15 Nov 2018 07:47:49 -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=io202K/f8USMQZXbIPPlFl1CkxJtDZmQ24ViVn7Bo2M=; b=FqwlFq7RXy+tYLQhDZXhKCbRPAkRmfn2V/LfWtK/qmLG+Vie8Ebzek8qsl9WCGr9QA 0whTVQ3NWdP1mlPPtsMuVS01rpgpSMe39FgSof8wwl3pR3+Mu8h9fpqLlwo4nvV7MW3i NnUIQpSEuDi5MByoCRtFAGmyh5myCCSY5tUKZwPRtnGJLuWOiwzzw4YvpnCNxbj05mQg zZ3xjcfPFTA0ksT6ELqYnwZmGIgzc5iWvPBDTmi3L5l/raDs66ykKER5uzGdLMOX3/Gk 4gjXFN4347PwqkoehvwTeJaAEpJdj2zpJgNtSWxkg8m5Rgrn73DMSuw+0iubNN0vzC6b /qKw== 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=io202K/f8USMQZXbIPPlFl1CkxJtDZmQ24ViVn7Bo2M=; b=FodozotxD3QUQpGEtodKM100/+Xuj8NHFYUy53PgPzcjhPPokqtIlqucg5/sFRvWQc 1+yE31fPRwvY1R4Mu+0tE4zC1EUsU8MDhxJ8Bo2v90vyKgqT0cJKi5aH0NVLKQXA1Tov Ohos2vhRslT/qgQEFCvhg1sdiVHZalQAKIRI7L/LerEaYqVsogenlKVkjuRzl10bimNx Y+qi1N8aWuaPZ8sELRfJO9zf2ygCdJL0jHI1P+UXgk7g7rtSY+8KjAeEe+BYeN13U638 ME5gXnfA0OZxBUkU5L49hCnW9hwq6qvucSLC16+zVot3DdH9r6oL7kdO3ZE1JGEqifh8 0vTw== X-Gm-Message-State: AGRZ1gJaSWJH7IG5TnRCF40WFIz4QzkuXQobl3NFRglVhxblittW8tuT TXqvnINOpncDxdWY/ZpgjNgAGH+f X-Google-Smtp-Source: AJdET5fbf5V0Ydlq8wMOhTyby2SzmuPQM7mnUTR1SsYy9WXPx2SMZDGWG7EF0a46EpXzZq0230Srng== X-Received: by 2002:a62:4886:: with SMTP id q6mr2284395pfi.182.1542296869041; Thu, 15 Nov 2018 07:47:49 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.97.233]) by smtp.gmail.com with ESMTPSA id i88-v6sm59478434pfi.66.2018.11.15.07.47.43 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 15 Nov 2018 07:47:48 -0800 (PST) Date: Thu, 15 Nov 2018 21:21:13 +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 8/9] xen/gntdev.c: Convert to use vm_insert_range Message-ID: <20181115155113.GA28021@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 --- drivers/xen/gntdev.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index b0b02a5..430d4cb 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -1084,7 +1084,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) int index = vma->vm_pgoff; int count = vma_pages(vma); struct gntdev_grant_map *map; - int i, err = -EINVAL; + int err = -EINVAL; if ((vma->vm_flags & VM_WRITE) && !(vma->vm_flags & VM_SHARED)) return -EINVAL; @@ -1145,12 +1145,9 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) goto out_put_map; if (!use_ptemod) { - for (i = 0; i < count; i++) { - err = vm_insert_page(vma, vma->vm_start + i*PAGE_SIZE, - map->pages[i]); - if (err) - goto out_put_map; - } + err = vm_insert_range(vma, vma->vm_start, map->pages, count); + if (err) + goto out_put_map; } else { #ifdef CONFIG_X86 /* -- 1.9.1