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=-3.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT 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 E82C6C433FF for ; Mon, 12 Aug 2019 01:50:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B64CA2084D for ; Mon, 12 Aug 2019 01:50:57 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="J3n5ZKeo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726786AbfHLBu5 (ORCPT ); Sun, 11 Aug 2019 21:50:57 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:43921 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726200AbfHLBu4 (ORCPT ); Sun, 11 Aug 2019 21:50:56 -0400 Received: by mail-pf1-f196.google.com with SMTP id v12so1141998pfn.10; Sun, 11 Aug 2019 18:50:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=pfaVFzFF0GvUkP+csExf9mRMYKLakGIqocXWtOijWcs=; b=J3n5ZKeoQQ0bmNJgluv6gAytDIfBo9heugCs0XBMhVCrev0LMMnqqYvHMPS/Cr0eBt gctxUlCPGnoXwjK2CwzgVvi28Wb22MRLlEhA2lKWros6W4HEdEFgJOn/NBCaUfYs2Th8 uPiE4ZxUz27VerKWtltJreVV1o5cNvwgiQmm2L4fmmkncjkGTaspegF0sY5rCwFaz1Bj NmwHks4rnhNi7uAo/lBpxeuM3ZbiuZQc8DkW7I1xNK4QRa1pZCMUjYzqmjrptEEwb9Fi DfhQnMHmRrF6nz3dpmgznKvjSD+eNOrb0yEq+WeDxCYjBjqUNCYLFdD0M1uwwALX4eRZ OSMA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=pfaVFzFF0GvUkP+csExf9mRMYKLakGIqocXWtOijWcs=; b=MXJwOuOHmKADAU2vW5Wl+ibhpMmFzsIFmV9dQVSznTMaeSqywa251ZKEmB8DChqAtv MBzHJRjZnFMSWb7mnvbWw+FG+sZT9r0bYfuHgEGOU67iL6pb2NFfbim3jIpRNUJRU7oJ HVxkxX/bX76r9mLlPlr10ooXMhXfs+yO7rsW0+3b2n3nSp9G/SH6jJLN2EI5sGp1tqZW r7b6v5anIqIp5IvaEleQDqTaLAgV9BBHinmn8eEbIaG1pNpi/PVc1fFQwQ/Sq7iR2Ap7 4t4VUEvFH1/VSdF1D05tc8ALRAYZs8iHRCc/C1TUAigSFtO22OaTVKYnGauINordz8o+ rjOw== X-Gm-Message-State: APjAAAV5MRK7ASlQc6cFhAXEcnQ9SbO9LMetLVT5YBzO5i6NHDs4S/da RinunS/jdu+RtHY9PI2hhDHGPMXA X-Google-Smtp-Source: APXvYqwiGohojGGhDnygsE9A4cyzbEHPkz9fH4ggMXoJfzmaJzcdAgT3McHJiakV36cLDMyvSwP/zg== X-Received: by 2002:a65:44cc:: with SMTP id g12mr27761338pgs.409.1565574656022; Sun, 11 Aug 2019 18:50:56 -0700 (PDT) Received: from blueforge.nvidia.com (searspoint.nvidia.com. [216.228.112.21]) by smtp.gmail.com with ESMTPSA id j20sm100062363pfr.113.2019.08.11.18.50.55 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sun, 11 Aug 2019 18:50:55 -0700 (PDT) From: john.hubbard@gmail.com X-Google-Original-From: jhubbard@nvidia.com To: Andrew Morton Cc: Christoph Hellwig , Dan Williams , Dave Chinner , Ira Weiny , Jan Kara , Jason Gunthorpe , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , LKML , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-rdma@vger.kernel.org, John Hubbard Subject: [RFC PATCH 0/2] mm/gup: introduce vaddr_pin_pages_remote(), FOLL_PIN Date: Sun, 11 Aug 2019 18:50:42 -0700 Message-Id: <20190812015044.26176-1-jhubbard@nvidia.com> X-Mailer: git-send-email 2.22.0 MIME-Version: 1.0 X-NVConfidentiality: public Content-Transfer-Encoding: 8bit Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: John Hubbard Hi, Dave Chinner's head didn't seem to explode...much, when he saw Ira's series, so I optimistically started taking it from there...this builds on top of Ira's patchset that he just sent out: "[RFC PATCH v2 00/19] RDMA/FS DAX truncate proposal V1,000,002 ;-)" [1] ...which in turn is based on the latest -mmotm. If Ira's series and this one are both acceptable, then a) I'll rework the 41-patch "put_user_pages(): miscellaneous call sites" series, and b) note that this will take rather longer and will be quite a bit more intrusive for each call site (but it's worth it), due to the need to plumb the owning struct file* all the way down to the gup() call. whew. [1] https://lore.kernel.org/r/20190809225833.6657-1-ira.weiny@intel.com [2] https://lore.kernel.org/r/20190807013340.9706-1-jhubbard@nvidia.com John Hubbard (2): mm/gup: introduce FOLL_PIN flag for get_user_pages() mm/gup: introduce vaddr_pin_pages_remote() drivers/infiniband/core/umem_odp.c | 15 ++++---- include/linux/mm.h | 8 +++++ mm/gup.c | 55 +++++++++++++++++++++++++++++- 3 files changed, 71 insertions(+), 7 deletions(-) -- 2.22.0