Message ID | 20191216222537.491123-9-jhubbard@nvidia.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show
Return-Path: <SRS0=RKFY=2G=kvack.org=owner-linux-mm@kernel.org> Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 340D3138D for <patchwork-linux-mm@patchwork.kernel.org>; Mon, 16 Dec 2019 22:26:24 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id EB99121835 for <patchwork-linux-mm@patchwork.kernel.org>; Mon, 16 Dec 2019 22:26:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="QXAdTwcc" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EB99121835 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 5B0608E002B; Mon, 16 Dec 2019 17:25:51 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 305CF8E0029; Mon, 16 Dec 2019 17:25:51 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 12F8B8E002A; Mon, 16 Dec 2019 17:25:51 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0215.hostedemail.com [216.40.44.215]) by kanga.kvack.org (Postfix) with ESMTP id DDB7E8E002B for <linux-mm@kvack.org>; Mon, 16 Dec 2019 17:25:50 -0500 (EST) Received: from smtpin24.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with SMTP id AAB7A181AEF10 for <linux-mm@kvack.org>; Mon, 16 Dec 2019 22:25:50 +0000 (UTC) X-FDA: 76272438060.24.cream47_15daefad57c53 X-Spam-Summary: 1,0,0,,d41d8cd98f00b204,jhubbard@nvidia.com,:akpm@linux-foundation.org:viro@zeniv.linux.org.uk:alex.williamson@redhat.com:benh@kernel.crashing.org:bjorn.topel@intel.com:hch@infradead.org:dan.j.williams@intel.com:daniel@ffwll.ch:david@fromorbit.com:airlied@linux.ie:davem@davemloft.net:ira.weiny@intel.com:jack@suse.cz:jgg@ziepe.ca:axboe@kernel.dk:corbet@lwn.net:jglisse@redhat.com:magnus.karlsson@intel.com:mchehab@kernel.org:mpe@ellerman.id.au:mhocko@suse.com:mike.kravetz@oracle.com:paulus@samba.org:shuah@kernel.org: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-kernel@vger.kernel.org:jhubbard@nvidia.com:hch@lst.de:leonro@mellanox.com,RULES_HIT:30054:30064:30069:30090,0,RBL:216.228.121.143:@nvidia .com:.lb X-HE-Tag: cream47_15daefad57c53 X-Filterd-Recvd-Size: 5354 Received: from hqnvemgate24.nvidia.com (hqnvemgate24.nvidia.com [216.228.121.143]) by imf40.hostedemail.com (Postfix) with ESMTP for <linux-mm@kvack.org>; Mon, 16 Dec 2019 22:25:49 +0000 (UTC) Received: from hqpgpgate102.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate24.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id <B5df8044b0003>; Mon, 16 Dec 2019 14:25:15 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate102.nvidia.com (PGP Universal service); Mon, 16 Dec 2019 14:25:42 -0800 X-PGP-Universal: processed; by hqpgpgate102.nvidia.com on Mon, 16 Dec 2019 14:25:42 -0800 Received: from HQMAIL111.nvidia.com (172.20.187.18) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 16 Dec 2019 22:25:40 +0000 Received: from hqnvemgw03.nvidia.com (10.124.88.68) by HQMAIL111.nvidia.com (172.20.187.18) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Mon, 16 Dec 2019 22:25:40 +0000 Received: from blueforge.nvidia.com (Not Verified[10.110.48.28]) by hqnvemgw03.nvidia.com with Trustwave SEG (v7,5,8,10121) id <B5df804630009>; Mon, 16 Dec 2019 14:25:39 -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?QmrDtnJuIFQ=?= =?utf-8?b?w7ZwZWw=?= <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?SsOpcsO0bWUgR2xpc3Nl?= <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>, "Christoph Hellwig" <hch@lst.de>, Leon Romanovsky <leonro@mellanox.com> Subject: [PATCH v11 08/25] mm/gup: allow FOLL_FORCE for get_user_pages_fast() Date: Mon, 16 Dec 2019 14:25:20 -0800 Message-ID: <20191216222537.491123-9-jhubbard@nvidia.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191216222537.491123-1-jhubbard@nvidia.com> References: <20191216222537.491123-1-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=1576535116; bh=GaMDdkBzZd758P08B9WL3o0IFRnACAccvNSYo6PPuaE=; 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=QXAdTwccKga9vn0Eu3DMHlN4BquUlZRfk/oLZq8SKdZF9sx08rlOj9+8HB3obIsGd /nsGoLvvn2opb5h9uhCPpwefAFbeA0bX/wesy1/zEZl1gAyGzTQ038RW4jXFA9cQFR pUFUb659b/NBkqjib4mtgQjfkGg/S854AS30YrPYWG1V6Z6KPUeLhT6l/OXHg42EmL Y0jngoM35MxaF2z36HhTzbz61wbe0EamYax7nqLSixujZ6fJy/yuaUTaYgKZU2GElA 358s9WfEUbvzlhfQaZklqm0gp50An+wwE4Or6ayAAyT6qb5Pg7U1x7SMqoBFTTSvwc sYa5cxuyNe/vA== 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: <linux-mm.kvack.org> |
Series |
mm/gup: track dma-pinned pages: FOLL_PIN
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diff --git a/mm/gup.c b/mm/gup.c index c0c56888e7cc..958ab0757389 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -2414,7 +2414,8 @@ int get_user_pages_fast(unsigned long start, int nr_pages, unsigned long addr, len, end; int nr = 0, ret = 0; - if (WARN_ON_ONCE(gup_flags & ~(FOLL_WRITE | FOLL_LONGTERM))) + if (WARN_ON_ONCE(gup_flags & ~(FOLL_WRITE | FOLL_LONGTERM | + FOLL_FORCE))) return -EINVAL; start = untagged_addr(start) & PAGE_MASK;