Message ID | 20200107224558.2362728-17-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="pjbO7VhQ"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47snZ32C60z9sSG for <patchwork-incoming-netdev@ozlabs.org>; Wed, 8 Jan 2020 09:47:07 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728083AbgAGWrE (ORCPT <rfc822;patchwork-incoming-netdev@ozlabs.org>); Tue, 7 Jan 2020 17:47:04 -0500 Received: from hqnvemgate24.nvidia.com ([216.228.121.143]:11511 "EHLO hqnvemgate24.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727761AbgAGWqP (ORCPT <rfc822;netdev@vger.kernel.org>); Tue, 7 Jan 2020 17:46:15 -0500 Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id <B5e1509fa0000>; Tue, 07 Jan 2020 14:45:14 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Tue, 07 Jan 2020 14:46:02 -0800 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Tue, 07 Jan 2020 14:46:02 -0800 Received: from HQMAIL109.nvidia.com (172.20.187.15) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 7 Jan 2020 22:46:01 +0000 Received: from HQMAIL101.nvidia.com (172.20.187.10) by HQMAIL109.nvidia.com (172.20.187.15) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Tue, 7 Jan 2020 22:46:01 +0000 Received: from hqnvemgw03.nvidia.com (10.124.88.68) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Tue, 7 Jan 2020 22:46:01 +0000 Received: from blueforge.nvidia.com (Not Verified[10.110.48.28]) by hqnvemgw03.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id <B5e150a290006>; Tue, 07 Jan 2020 14:46:01 -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>, "Kirill A . Shutemov" <kirill@shutemov.name>, "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> Subject: [PATCH v12 16/22] fs/io_uring: set FOLL_PIN via pin_user_pages() Date: Tue, 7 Jan 2020 14:45:52 -0800 Message-ID: <20200107224558.2362728-17-jhubbard@nvidia.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200107224558.2362728-1-jhubbard@nvidia.com> References: <20200107224558.2362728-1-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=1578437114; bh=+ZAU2uGq23lKZbEw6uef005t38Iwen7Z6JkwY4uKSeQ=; 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=pjbO7VhQEZ7Ff9pXD4te/6ceS3tisAYtOAvtOMeLMsOY3tbiX2SHNdLPOr/6BxGKi yBYDmITaoi6Azw5ae5kASafDrzKX6Q4iKUvDx6dZkpAm5Oe+3nImadR1JIw576e8cF LIzBW/IcRmc+zcRiWKU5itg4LLKkq8MZDyNOQtK5PrewkaYv40i6rnERtBga9FNBiT wja4iqS0c1do2buD8ggqzT2M8QySz0EI5eF9F6QKKFSrhJt/te/qTfatDiG0JbFPCu N6ZSCPKKxTqcSwmLUacco4IASH+qQF+y30qoWGyy5Go+aaIS6GjnOH7qoq5HE6Lc15 uW2ZN6HTIBFwQ== Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: <netdev.vger.kernel.org> X-Mailing-List: netdev@vger.kernel.org |
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mm/gup: prereqs to track dma-pinned pages: FOLL_PIN
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diff --git a/fs/io_uring.c b/fs/io_uring.c index 562e3a1a1bf9..9f804cb25c61 100644 --- a/fs/io_uring.c +++ b/fs/io_uring.c @@ -4815,7 +4815,7 @@ static int io_sqe_buffer_register(struct io_ring_ctx *ctx, void __user *arg, ret = 0; down_read(¤t->mm->mmap_sem); - pret = get_user_pages(ubuf, nr_pages, + pret = pin_user_pages(ubuf, nr_pages, FOLL_WRITE | FOLL_LONGTERM, pages, vmas); if (pret == nr_pages) {