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 BF829C43441 for ; Thu, 15 Nov 2018 15:46:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 845152146D for ; Thu, 15 Nov 2018 15:46:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KDL1jXOi" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 845152146D 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 S2388725AbeKPByh (ORCPT ); Thu, 15 Nov 2018 20:54:37 -0500 Received: from mail-pf1-f194.google.com ([209.85.210.194]:35411 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726432AbeKPByh (ORCPT ); Thu, 15 Nov 2018 20:54:37 -0500 Received: by mail-pf1-f194.google.com with SMTP id v9-v6so9886589pff.2 for ; Thu, 15 Nov 2018 07:46:16 -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=d6oJZE/ChJaKaKxciGARJsnaQLdSQV2i4WCXLXIWfrQ=; b=KDL1jXOipi5AI9hqqrIXJb54kJnJcGHPZq2inivM6wT37owA8faKfCyFnyplVYZnJ2 WcPQLs0t0fomnazLFjvCVMXSXW45w7kASTC0eaHU48sGeSCZda4SHSCs4KipKTwwLWPe 86twXHz84aj/2VhHhjQXF5DLGpALUGDrIDAg798dFy/qS+XgbKCzqsdtUiM5jiSJB9TJ twfempieOEafBe8eLr2HyUh5+PRkuIsAp1eXaRnou8Lnt6zxuZObdya1V+OnOGPFeErR J/rmbflib7zF+roU53lBFqGQ2+A5vh0ko6q+0MkuD6c86cLmAfT2/efpTLbzC1uR2+Gt JzyQ== 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=d6oJZE/ChJaKaKxciGARJsnaQLdSQV2i4WCXLXIWfrQ=; b=REmsqwV3496iNTNVZqN5+uPfYaZc9R0PeuL74DvQcNZhBN5rqNE9BzxpY/V0JqmwY/ DK3s/Ud9hFo/UfLq510X0tgI/IDl7N/kY8soqR64/Xcgn0AADwin6OFgA0V7+pUH/ezp 2AEEshXwn/mlGLtw2uMwg2Grfv8x0VQYcGdpEA3ylytvDLacIO14kOxAXUjjnALkQa66 qd79xPwv2rjZ/xBmdwUlSjpAVy4MsQh/kbj7n1IuyI1tgOJW5x6KbEiygBLRlbj26Du/ tUhB6D7Is7tU5sGRfLFTlSVjlLw3ZrknenFXLYbVcHjBExrYitEs6SDSodKIr1DPPJ26 1xDg== X-Gm-Message-State: AGRZ1gK31MZNjZX+xazvmAmRbiQ7f9oiT4J463grMB860MmsTo93xED7 cbhtA3/hNigXsPxq0KEYhzc= X-Google-Smtp-Source: AJdET5ePnd6LsBs3MvsWmND5rouZNtcp/4maXAw3ddO5kkpXTes4M9S1/JU9EhJVlMxVKMlrn5+f7g== X-Received: by 2002:a63:4a4d:: with SMTP id j13mr6356647pgl.127.1542296776069; Thu, 15 Nov 2018 07:46:16 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.97.233]) by smtp.gmail.com with ESMTPSA id p5-v6sm29750372pfb.109.2018.11.15.07.46.14 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 15 Nov 2018 07:46:14 -0800 (PST) Date: Thu, 15 Nov 2018 21:19:50 +0530 From: Souptick Joarder To: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, joro@8bytes.org Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 6/9] iommu/dma-iommu.c: Convert to use vm_insert_range Message-ID: <20181115154950.GA27985@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/iommu/dma-iommu.c | 12 ++---------- 1 file changed, 2 insertions(+), 10 deletions(-) diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c index d1b0475..69c66b1 100644 --- a/drivers/iommu/dma-iommu.c +++ b/drivers/iommu/dma-iommu.c @@ -622,17 +622,9 @@ struct page **iommu_dma_alloc(struct device *dev, size_t size, gfp_t gfp, int iommu_dma_mmap(struct page **pages, size_t size, struct vm_area_struct *vma) { - unsigned long uaddr = vma->vm_start; - unsigned int i, count = PAGE_ALIGN(size) >> PAGE_SHIFT; - int ret = -ENXIO; + unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT; - for (i = vma->vm_pgoff; i < count && uaddr < vma->vm_end; i++) { - ret = vm_insert_page(vma, uaddr, pages[i]); - if (ret) - break; - uaddr += PAGE_SIZE; - } - return ret; + return vm_insert_range(vma, vma->vm_start, pages, count); } static dma_addr_t __iommu_dma_map(struct device *dev, phys_addr_t phys, -- 1.9.1