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,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 511DCC04EB8 for ; Sun, 2 Dec 2018 06:24:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0C7622082F for ; Sun, 2 Dec 2018 06:24:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="NhXPEcwi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0C7622082F 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 S1725816AbeLBGYf (ORCPT ); Sun, 2 Dec 2018 01:24:35 -0500 Received: from mail-pl1-f194.google.com ([209.85.214.194]:41011 "EHLO mail-pl1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725379AbeLBGYf (ORCPT ); Sun, 2 Dec 2018 01:24:35 -0500 Received: by mail-pl1-f194.google.com with SMTP id u6so4818660plm.8 for ; Sat, 01 Dec 2018 22:24:33 -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=NhXPEcwiMw1Jo0Yi0g97yLtSrgjmPBYmW2vb685ioI+U4hCQGjrF1FY5BLpoyPhG2J aUK/Za6Fh/zreav+EGci9N6H6yIIMZ+efw1GT2E+D78DGnWX1JQwYy2ispB3kuDU0tG+ xUzPWz/+xnR6UuC8tUJ+XwhbHAGxt1er8Vj3nl/GgaDT6CNHr9/7ahNkvNZUK/S5Gq1L gr5iVu096dfzeK99TmuYocmpCw8kcKaSuWkguFSJWw2FXhFO5TH9Vkdezq6zXr7JtEIJ lF25ikfMrQW4LCt7tuE7lPEyYftBR/y143U7oi/ufYCkU4nNecNMZWxk13mIn3EdR/VS Lafw== 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=af4qZjOANxV4P/YDCtgGZQ9jV3VjJKNBUkXyoPhBgGG3Ye7gErMHHRaA6Qcyyf72H7 EHgeK1xnf0DlREa4tnRM7H7S4fv9CrPh9TMZo6hNH4q4L6jVIl0M3Fvh/xZi2Oiz1gDr YpB2l4I5QzjlXbw5MFRJJwnmIvYC/zdgqAv/+aXoLvxViAsl5i+mLDJrHph/eVX5mSM6 w+bUQLA3xsb7fY4ex6M+yE8YG+E+iqyGynWkdjWZMflacqDNyE+92VCIRY1wx4IDDeqz MTC/9QPYyRoD4dOdsygkhguwqajTjszs67QP/8b4FF33DvOojoTtpnu1eYp1Hq1k4y0s EUMg== X-Gm-Message-State: AA+aEWYNWdTAD0U8Fj5sGOr0XPyXSBLfFaQQEqqIpPj9H80S0opPAIiM +aykaYz41M+4sqVP3rWXBNo= X-Google-Smtp-Source: AFSGD/VHmonIx00YX3S79mkkjHjj09llEDbImZVH68eWMhHUiHmKjvuUEmzCzMegTtM0KXbGzxmF+w== X-Received: by 2002:a17:902:4c85:: with SMTP id b5mr10986893ple.226.1543731872839; Sat, 01 Dec 2018 22:24:32 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.99.148]) by smtp.gmail.com with ESMTPSA id r83sm18648620pfc.115.2018.12.01.22.24.31 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sat, 01 Dec 2018 22:24:32 -0800 (PST) Date: Sun, 2 Dec 2018 11:58:17 +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 v2 9/9] xen/privcmd-buf.c: Convert to use vm_insert_range Message-ID: <20181202062816.GA3256@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