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=-3.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 D8311C33CB7 for ; Fri, 31 Jan 2020 06:13:12 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 9D2502082E for ; Fri, 31 Jan 2020 06:13:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="YJD57vnL" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9D2502082E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 4AC2C6B0507; Fri, 31 Jan 2020 01:13:12 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 45BE76B0509; Fri, 31 Jan 2020 01:13:12 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 39B616B050A; Fri, 31 Jan 2020 01:13:12 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0013.hostedemail.com [216.40.44.13]) by kanga.kvack.org (Postfix) with ESMTP id 1D26B6B0507 for ; Fri, 31 Jan 2020 01:13:12 -0500 (EST) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id DA2624403 for ; Fri, 31 Jan 2020 06:13:11 +0000 (UTC) X-FDA: 76436911782.10.bells96_1be17fc3bff54 X-HE-Tag: bells96_1be17fc3bff54 X-Filterd-Recvd-Size: 4089 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf37.hostedemail.com (Postfix) with ESMTP for ; Fri, 31 Jan 2020 06:13:11 +0000 (UTC) Received: from localhost.localdomain (c-73-231-172-41.hsd1.ca.comcast.net [73.231.172.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 0C5C321734; Fri, 31 Jan 2020 06:13:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580451190; bh=cDoQg8DMQfbFfuUrsE7+QNLqqfdmg0oTi4rJ3aQ3W/8=; h=Date:From:To:Subject:In-Reply-To:From; b=YJD57vnLtmjaJhp0Jmss6IpBXZZ70s07W06rS3VbPMlv3fZMqugm41x/VF8FBEVWY HD0aXS0sGAjXdUA3yGarX/los3I84zf+mBODNo2AIaQafZKPu6zWWnYV5MFoDQ5Gns N9RyjPBOIN5L+Dx1jOb6bvIbmpdBE+vK8IJSCGOE= Date: Thu, 30 Jan 2020 22:13:09 -0800 From: Andrew Morton To: akpm@linux-foundation.org, alex.williamson@redhat.com, aneesh.kumar@linux.ibm.com, axboe@kernel.dk, bjorn.topel@intel.com, corbet@lwn.net, dan.j.williams@intel.com, daniel.vetter@ffwll.ch, hch@lst.de, hverkuil-cisco@xs4all.nl, ira.weiny@intel.com, jack@suse.cz, jgg@mellanox.com, jgg@ziepe.ca, jglisse@redhat.com, jhubbard@nvidia.com, kirill@shutemov.name, leonro@mellanox.com, linux-mm@kvack.org, mchehab@kernel.org, mm-commits@vger.kernel.org, rppt@linux.ibm.com, torvalds@linux-foundation.org Subject: [patch 038/118] drm/via: set FOLL_PIN via pin_user_pages_fast() Message-ID: <20200131061309.LWOXg6Pdk%akpm@linux-foundation.org> In-Reply-To: <20200130221021.5f0211c56346d5485af07923@linux-foundation.org> User-Agent: s-nail v14.8.16 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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: =46rom: John Hubbard Subject: drm/via: set FOLL_PIN via pin_user_pages_fast() Convert drm/via to use the new pin_user_pages_fast() call, which sets FOLL_PIN. Setting FOLL_PIN is now required for code that requires tracking of pinned pages, and therefore for any code that calls put_user_page(). In partial anticipation of this work, the drm/via driver was already calling put_user_page() instead of put_page(). Therefore, in order to convert from the get_user_pages()/put_page() model, to the pin_user_pages()/put_user_page() model, the only change required is to change get_user_pages() to pin_user_pages(). Link: http://lkml.kernel.org/r/20200107224558.2362728-16-jhubbard@nvidia.com Signed-off-by: John Hubbard Acked-by: Daniel Vetter Reviewed-by: J=C3=A9r=C3=B4me Glisse Reviewed-by: Ira Weiny Cc: Alex Williamson Cc: Aneesh Kumar K.V Cc: Bj=C3=B6rn T=C3=B6pel Cc: Christoph Hellwig Cc: Dan Williams Cc: Hans Verkuil Cc: Jan Kara Cc: Jason Gunthorpe Cc: Jason Gunthorpe Cc: Jens Axboe Cc: Jonathan Corbet Cc: Kirill A. Shutemov Cc: Leon Romanovsky Cc: Mauro Carvalho Chehab Cc: Mike Rapoport Signed-off-by: Andrew Morton --- drivers/gpu/drm/via/via_dmablit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/via/via_dmablit.c~drm-via-set-foll_pin-via-pin_user_p= ages_fast +++ a/drivers/gpu/drm/via/via_dmablit.c @@ -239,7 +239,7 @@ via_lock_all_dma_pages(drm_via_sg_info_t vsg->pages =3D vzalloc(array_size(sizeof(struct page *), vsg->num_pages)); if (NULL =3D=3D vsg->pages) return -ENOMEM; - ret =3D get_user_pages_fast((unsigned long)xfer->mem_addr, + ret =3D pin_user_pages_fast((unsigned long)xfer->mem_addr, vsg->num_pages, vsg->direction =3D=3D DMA_FROM_DEVICE ? FOLL_WRITE : 0, vsg->pages); _