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,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 5AA83C43381 for ; Tue, 19 Mar 2019 02:20:56 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 192662147C for ; Tue, 19 Mar 2019 02:20:56 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="WSM8bcfn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 192662147C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id A91E46B0007; Mon, 18 Mar 2019 22:20:55 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id A41986B000A; Mon, 18 Mar 2019 22:20:55 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 90A236B000C; Mon, 18 Mar 2019 22:20:55 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from mail-pf1-f198.google.com (mail-pf1-f198.google.com [209.85.210.198]) by kanga.kvack.org (Postfix) with ESMTP id 5568B6B0007 for ; Mon, 18 Mar 2019 22:20:55 -0400 (EDT) Received: by mail-pf1-f198.google.com with SMTP id g83so8412471pfd.3 for ; Mon, 18 Mar 2019 19:20:55 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:dkim-signature:date:from:to:cc:subject :message-id:references:mime-version:content-disposition:in-reply-to :user-agent; bh=naB3KMuHNTCaDD6/Z64EGJGrk7XQ7GW1pzVQ9Q3Vf6s=; b=hJ8ofbebXB2W529DGhiJXrSLna0Nsry9ZCQNPeknNuPP69wkudKFOpGh66PgnLjCId u6OyFO4VieJml3iPfHsrnS7cIcwPQJejLzjzpbvKihmzdmKUZnAhd2QrPjvp+uelqikB Yv9GtTEt2edVJvwgqSS5uPm1AzX8FoWa+Cl+1FaEFArwtIdPf3X+PW3K51p+tQ5rne4F 9Foo32dLnSj7ScZ9aX1Qp7mJDrhm4MMi2ybWnmk4QODxGBwWpaODof2CjV2Yjl91KKXV nscf6HUr/UYy4PeJohfR8YLsNwrCotBIAV1BLHEYJsrvidvobm2V7/J9iqZLD3Us0vqs QH/Q== X-Gm-Message-State: APjAAAWCHkypPJjxK8W7Cbl0WZ6hiRZ79RlenKONF6dBw+uZUqbQ0Y+L 8GMaFy1j28xX3f8SpZk5lgCYE6ziQPGzCjyXW+moTWjWwhO72Gm707l91rck61IyW55K0RHYVqO g4ZwBMsvmYwnig4u802GVAtQYeHtuaFQ2waVx0symuBhm/5johbdJ9D0yFQAwAtmU0w== X-Received: by 2002:a17:902:282b:: with SMTP id e40mr23107685plb.111.1552962055020; Mon, 18 Mar 2019 19:20:55 -0700 (PDT) X-Received: by 2002:a17:902:282b:: with SMTP id e40mr23107624plb.111.1552962053841; Mon, 18 Mar 2019 19:20:53 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1552962053; cv=none; d=google.com; s=arc-20160816; b=lGH55YkQ4l+BwuMZUADZZtAYAF34RQY6qT13v+ugjqdIVMZfuLe0/qbM38lW3ry3aj RDs+FtMguXLNgYkajKA2mPcU0+g2axItpMKNQ4tw2vGVPH0uyVcARtDVQDN1/MFXihAU iFDTzvn3Pan1bFnyrGvrhWC4ddT0V+vTkk5OwmOh9RHJIppExCP2Qb6XltKq2KHKisED IL3QpjFsde7G/PmP0JiKpvMqKfpfyL3DaO1wxi5quNgca4c4x09fDp9okWVwcG31wHWM 2elyCqTfPasqEYG2zaDc08xjwYR3Ohxw+pTC3WwdF7h4adL5tQ7CdDDFkkc2YjxPUgD/ L3xA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date:dkim-signature; bh=naB3KMuHNTCaDD6/Z64EGJGrk7XQ7GW1pzVQ9Q3Vf6s=; b=xZALcs7sSBjq6hsgs+iJ6Ncy5cFbgaW/0/G3D2NL9stnuvnix/Brrw1oGJCZw/84Is yzkGA5RkwlPGnX8RUkKKWInwD/J5s/aHEbpHMNRKmGR2NDFMXiojwZw9Vn/23ltIVmnU RsivHZN6jdE9QoG2hEO39h0/IUZ97d4IzsN0nJqqg4cx60AXcs9pVlLTHw9vn8hqgR0y +DDIJa/+tCIuTx/3Bpsg6CllLzZPsdTLC/HFcrYxR8fprhouStJN1/z+oNqfJqunVj3l imrjoS7H/v3+4iet1189JaiTsQrHWFwN+hda1rzTLw949rG+c8VpgXHMVW//FBiPDJaW ttkQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=WSM8bcfn; spf=pass (google.com: domain of jrdr.linux@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=jrdr.linux@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from mail-sor-f65.google.com (mail-sor-f65.google.com. [209.85.220.65]) by mx.google.com with SMTPS id t17sor3645587pgi.53.2019.03.18.19.20.53 for (Google Transport Security); Mon, 18 Mar 2019 19:20:53 -0700 (PDT) Received-SPF: pass (google.com: domain of jrdr.linux@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=WSM8bcfn; spf=pass (google.com: domain of jrdr.linux@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=jrdr.linux@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=naB3KMuHNTCaDD6/Z64EGJGrk7XQ7GW1pzVQ9Q3Vf6s=; b=WSM8bcfnzprJdWx5H+Bbv4NvzZb7wmLUkYvEXRdyRIA5Wek38wiyF5fe3XVDp6HxhT SvVyViH+yOhwKt5+i0vurYanvZ8p+7/XaZT+N/09Z4mb0j1ffPYCdO/VV/Rmg1j8OXR6 l6vfFMjD9dK320LX88jeEMALCpeYCU+OZQFHRrJB7BYXIx+Wf/mTqJevt5oMTgUEhjNO HhGi9v8uHsnhCYu4jocHvOqIx1oxeMs3wYpDBpUnKWFzF2ByzT1hFXJfEWfMxZ9sjOVQ qa2yU0L1O2tZ7bhBxG+k+KBlp+I2vnJMt0+oDT36Q/jj6m8hTO9q1IET22Be90zWrdWm P+lg== X-Google-Smtp-Source: APXvYqydjAiDuBrPLoPLHvLscIhaXBUi7pdqSp5G6oVnWTJMUlOMWrMZhOnpVN474rtNeCUPGWjaAg== X-Received: by 2002:a63:4550:: with SMTP id u16mr20189420pgk.73.1552962053552; Mon, 18 Mar 2019 19:20:53 -0700 (PDT) Received: from jordon-HP-15-Notebook-PC ([106.51.22.39]) by smtp.gmail.com with ESMTPSA id m3sm13043728pgp.85.2019.03.18.19.20.52 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 18 Mar 2019 19:20:52 -0700 (PDT) Date: Tue, 19 Mar 2019 07:55:27 +0530 From: Souptick Joarder To: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, stefanr@s5r6.in-berlin.de, linux@armlinux.org.uk, robin.murphy@arm.com Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux1394-devel@lists.sourceforge.net Subject: [RESEND PATCH v4 3/9] drivers/firewire/core-iso.c: Convert to use vm_map_pages_zero() Message-ID: <88645f5ea8202784a8baaf389e592aeb8c505e8e.1552921225.git.jrdr.linux@gmail.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Convert to use vm_map_pages_zero() to map range of kernel memory to user vma. This driver has ignored vm_pgoff and mapped the entire pages. We could later "fix" these drivers to behave according to the normal vm_pgoff offsetting simply by removing the _zero suffix on the function name and if that causes regressions, it gives us an easy way to revert. Signed-off-by: Souptick Joarder --- drivers/firewire/core-iso.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c index 35e784c..5414eb1 100644 --- a/drivers/firewire/core-iso.c +++ b/drivers/firewire/core-iso.c @@ -107,19 +107,8 @@ int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card, int fw_iso_buffer_map_vma(struct fw_iso_buffer *buffer, struct vm_area_struct *vma) { - unsigned long uaddr; - int i, err; - - uaddr = vma->vm_start; - for (i = 0; i < buffer->page_count; i++) { - err = vm_insert_page(vma, uaddr, buffer->pages[i]); - if (err) - return err; - - uaddr += PAGE_SIZE; - } - - return 0; + return vm_map_pages_zero(vma, buffer->pages, + buffer->page_count); } void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer, -- 1.9.1 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=-8.8 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_GIT autolearn=unavailable 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 19A8FC10F13 for ; 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[209.85.220.65]) by mx.google.com with SMTPS id bj5sor67615122plb.25.2019.04.16.04.47.04 for (Google Transport Security); Tue, 16 Apr 2019 04:47:04 -0700 (PDT) Received-SPF: pass (google.com: domain of jrdr.linux@gmail.com designates 209.85.220.65 as permitted sender) client-ip=209.85.220.65; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=cU96DRv2; spf=pass (google.com: domain of jrdr.linux@gmail.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=jrdr.linux@gmail.com; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :in-reply-to:references; bh=naB3KMuHNTCaDD6/Z64EGJGrk7XQ7GW1pzVQ9Q3Vf6s=; b=cU96DRv2ov3f6Cd6NK8xcTZ/pxd6ORU1P19E6pQIz3B49Xye1iNecd9iNZibBfJcjQ zuIvUPJ+CLar5CQjZRDX3VQ1TZCDeFWlILHsb8dRJWggD00EqzXEkyE8uJG1kMP2eIvp n24W6tCY3AanegajVewju3yYDXmhf0X9II/qFV5HCylGUkejdXzo9E/koqfyqUqq8zr9 mW/ZBFGmtcso0v4QTX5OavZW9KBMU22Tan8pYhZR4Ld+BqKTsHamZTqQU3PDd55gPcFI MsgxhBrhXIs5Fh8xdDdB8AJYcTdBC4NqYXVKmPD9APCljql55oe+X1QMkhe2S4UTALoW 5KAA== X-Google-Smtp-Source: APXvYqzDjDcAV7GNAw1BnDNouVWt6jT57KNhFlyZntYAXIOvC1nqtveURqFOLb2rK8ycg0MhFKUzow== X-Received: by 2002:a17:902:d24:: with SMTP id 33mr83552990plu.246.1555415224705; Tue, 16 Apr 2019 04:47:04 -0700 (PDT) Received: from jordon-HP-15-Notebook-PC.domain.name ([49.207.50.11]) by smtp.gmail.com with ESMTPSA id p6sm55942835pfd.122.2019.04.16.04.46.55 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 16 Apr 2019 04:47:03 -0700 (PDT) From: Souptick Joarder To: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, kirill.shutemov@linux.intel.com, vbabka@suse.cz, riel@surriel.com, sfr@canb.auug.org.au, rppt@linux.vnet.ibm.com, peterz@infradead.org, linux@armlinux.org.uk, robin.murphy@arm.com, iamjoonsoo.kim@lge.com, treding@nvidia.com, keescook@chromium.org, m.szyprowski@samsung.com, stefanr@s5r6.in-berlin.de, hjc@rock-chips.com, heiko@sntech.de, airlied@linux.ie, oleksandr_andrushchenko@epam.com, joro@8bytes.org, pawel@osciak.com, kyungmin.park@samsung.com, mchehab@kernel.org, boris.ostrovsky@oracle.com, jgross@suse.com Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux1394-devel@lists.sourceforge.net, dri-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, xen-devel@lists.xen.org, iommu@lists.linux-foundation.org, linux-media@vger.kernel.org, Souptick Joarder Subject: [REBASE PATCH v5 3/9] drivers/firewire/core-iso.c: Convert to use vm_map_pages_zero() Date: Tue, 16 Apr 2019 17:19:44 +0530 Message-Id: <88645f5ea8202784a8baaf389e592aeb8c505e8e.1552921225.git.jrdr.linux@gmail.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: References: In-Reply-To: References: X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Content-Type: text/plain; charset="UTF-8" Message-ID: <20190416114944.ix4mSh61--XPakLAu8mvAGkx0eF2dKtErW3nSNKgZ9I@z> Convert to use vm_map_pages_zero() to map range of kernel memory to user vma. This driver has ignored vm_pgoff and mapped the entire pages. We could later "fix" these drivers to behave according to the normal vm_pgoff offsetting simply by removing the _zero suffix on the function name and if that causes regressions, it gives us an easy way to revert. Signed-off-by: Souptick Joarder --- drivers/firewire/core-iso.c | 15 ++------------- 1 file changed, 2 insertions(+), 13 deletions(-) diff --git a/drivers/firewire/core-iso.c b/drivers/firewire/core-iso.c index 35e784c..5414eb1 100644 --- a/drivers/firewire/core-iso.c +++ b/drivers/firewire/core-iso.c @@ -107,19 +107,8 @@ int fw_iso_buffer_init(struct fw_iso_buffer *buffer, struct fw_card *card, int fw_iso_buffer_map_vma(struct fw_iso_buffer *buffer, struct vm_area_struct *vma) { - unsigned long uaddr; - int i, err; - - uaddr = vma->vm_start; - for (i = 0; i < buffer->page_count; i++) { - err = vm_insert_page(vma, uaddr, buffer->pages[i]); - if (err) - return err; - - uaddr += PAGE_SIZE; - } - - return 0; + return vm_map_pages_zero(vma, buffer->pages, + buffer->page_count); } void fw_iso_buffer_destroy(struct fw_iso_buffer *buffer, -- 1.9.1