Message ID | 20191112000700.3455038-8-jhubbard@nvidia.com |
---|---|
State | Not Applicable |
Delegated to: | David Miller |
Headers | show
Return-Path: <netdev-owner@vger.kernel.org> X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=nvidia.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=nvidia.com header.i=@nvidia.com header.b="RlH9aqnq"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47Bp684ktTz9sPT for <patchwork-incoming-netdev@ozlabs.org>; Tue, 12 Nov 2019 11:10:08 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728003AbfKLAKH (ORCPT <rfc822;patchwork-incoming-netdev@ozlabs.org>); Mon, 11 Nov 2019 19:10:07 -0500 Received: from hqemgate14.nvidia.com ([216.228.121.143]:10662 "EHLO hqemgate14.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727348AbfKLAHR (ORCPT <rfc822;netdev@vger.kernel.org>); Mon, 11 Nov 2019 19:07:17 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate14.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id <B5dc9f7b20000>; Mon, 11 Nov 2019 16:07:15 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Mon, 11 Nov 2019 16:07:12 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Mon, 11 Nov 2019 16:07:12 -0800 Received: from HQMAIL101.nvidia.com (172.20.187.10) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 12 Nov 2019 00:07:11 +0000 Received: from rnnvemgw01.nvidia.com (10.128.109.123) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Tue, 12 Nov 2019 00:07:11 +0000 Received: from blueforge.nvidia.com (Not Verified[10.110.48.28]) by rnnvemgw01.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id <B5dc9f7ad0007>; Mon, 11 Nov 2019 16:07:10 -0800 From: John Hubbard <jhubbard@nvidia.com> To: Andrew Morton <akpm@linux-foundation.org> CC: Al Viro <viro@zeniv.linux.org.uk>, Alex Williamson <alex.williamson@redhat.com>, Benjamin Herrenschmidt <benh@kernel.crashing.org>, =?utf-8?b?QmrDtnJuIFTDtnBlbA==?= <bjorn.topel@intel.com>, Christoph Hellwig <hch@infradead.org>, Dan Williams <dan.j.williams@intel.com>, Daniel Vetter <daniel@ffwll.ch>, Dave Chinner <david@fromorbit.com>, David Airlie <airlied@linux.ie>, "David S . Miller" <davem@davemloft.net>, Ira Weiny <ira.weiny@intel.com>, Jan Kara <jack@suse.cz>, Jason Gunthorpe <jgg@ziepe.ca>, Jens Axboe <axboe@kernel.dk>, Jonathan Corbet <corbet@lwn.net>, =?utf-8?b?SsOpcsO0bWUgR2xp?= =?utf-8?q?sse?= <jglisse@redhat.com>, Magnus Karlsson <magnus.karlsson@intel.com>, Mauro Carvalho Chehab <mchehab@kernel.org>, Michael Ellerman <mpe@ellerman.id.au>, Michal Hocko <mhocko@suse.com>, Mike Kravetz <mike.kravetz@oracle.com>, Paul Mackerras <paulus@samba.org>, Shuah Khan <shuah@kernel.org>, Vlastimil Babka <vbabka@suse.cz>, <bpf@vger.kernel.org>, <dri-devel@lists.freedesktop.org>, <kvm@vger.kernel.org>, <linux-block@vger.kernel.org>, <linux-doc@vger.kernel.org>, <linux-fsdevel@vger.kernel.org>, <linux-kselftest@vger.kernel.org>, <linux-media@vger.kernel.org>, <linux-rdma@vger.kernel.org>, <linuxppc-dev@lists.ozlabs.org>, <netdev@vger.kernel.org>, <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>, John Hubbard <jhubbard@nvidia.com>, Hans Verkuil <hverkuil-cisco@xs4all.nl> Subject: [PATCH v3 07/23] media/v4l2-core: set pages dirty upon releasing DMA buffers Date: Mon, 11 Nov 2019 16:06:44 -0800 Message-ID: <20191112000700.3455038-8-jhubbard@nvidia.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191112000700.3455038-1-jhubbard@nvidia.com> References: <20191112000700.3455038-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: quoted-printable Content-Type: text/plain DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1573517235; bh=baa1oHQC+1Mr0fCveGP8H7qjkYYEgQstEl5cvxrT4lI=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:MIME-Version:X-NVConfidentiality: Content-Transfer-Encoding:Content-Type; b=RlH9aqnqOSW+i3r1ZNXVi188qkv8oPSHEHjP9TUEYUBYLbJPXbCpIeoixfuoEUqmI LJQtooBZONbMwl8oDlAORux6L1NKfifp27oCOAjTVolvjx6x9UZZFR2KckBFFMRmgl 7ucrDkIOQN1npJzTWI7Ie8VFWM02QId/hYOgJ3myD0hMMeVv/fPJ718f4N4x/Nio9D nFCya3Va0g2AaF10Bt3vATun/e/fRWeVe3HmbkEqJ2DQKgHOYzNMdmbeE1eZQEGUaw vwJeZf5SUFYrVGVb3dcPAmWcGTCefk/PAeXugQwb4JRf9NSmFCSds9KRkQl3pKX4bn 5prvXiV+C9UDw== Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: <netdev.vger.kernel.org> X-Mailing-List: netdev@vger.kernel.org |
Series |
mm/gup: track dma-pinned pages: FOLL_PIN, FOLL_LONGTERM
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diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c index 66a6c6c236a7..28262190c3ab 100644 --- a/drivers/media/v4l2-core/videobuf-dma-sg.c +++ b/drivers/media/v4l2-core/videobuf-dma-sg.c @@ -349,8 +349,11 @@ int videobuf_dma_free(struct videobuf_dmabuf *dma) BUG_ON(dma->sglen); if (dma->pages) { - for (i = 0; i < dma->nr_pages; i++) + for (i = 0; i < dma->nr_pages; i++) { + if (dma->direction == DMA_FROM_DEVICE) + set_page_dirty_lock(dma->pages[i]); put_page(dma->pages[i]); + } kfree(dma->pages); dma->pages = NULL; }