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=-2.6 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, USER_AGENT_GIT autolearn=unavailable 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 A4109C31E45 for ; Thu, 13 Jun 2019 15:33:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 79D8A2082C for ; Thu, 13 Jun 2019 15:33:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Gh2zOgr9" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728995AbfFMPdJ (ORCPT ); Thu, 13 Jun 2019 11:33:09 -0400 Received: from mail-pf1-f194.google.com ([209.85.210.194]:44089 "EHLO mail-pf1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728419AbfFMKpk (ORCPT ); Thu, 13 Jun 2019 06:45:40 -0400 Received: by mail-pf1-f194.google.com with SMTP id t16so11577161pfe.11 for ; Thu, 13 Jun 2019 03:45:40 -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; bh=YHBzv4ECslLKpMkzoxjS6aoXKy/SFXtprHmV+JrqNk0=; b=Gh2zOgr9bu+Tzr0HnGQ+mDT8OkUXS31CoKZCiImvLZkkl6q69mzX6Y9Hn3GwoO8JVf dtnKcxCHRIlz5+dyReJS5fGrudHhR1zZynm80yuqVFRbEs+OiEX3gEGuTDcheVRn8aAJ j02IfSd5WvBKV+C64bc+54++b3dRRFC/o446EASAeitsSlmTAJPqetf5dKkuiS8lch3L 6fVAuTFAbWTED9Nh4GT4TtWektafSz9Mn5YtET6Rvl1yoSmtTWSY2RZ2jBlZGpgqGWLU vlFi7+o/YSBV+eCdzjBvwXH3WKZtd9XhuPGcxgmX+QM2DfIhEkp9bl8pREA7G5383mYx Rvog== 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; bh=YHBzv4ECslLKpMkzoxjS6aoXKy/SFXtprHmV+JrqNk0=; b=ZND9FqbcxSbC/gohOsH4lIFbTr9obrEBCUwjOjaiaLptbD4dFp5uLd8mfNTcjG9Rb7 Ydx+osO08Seq0AsXQRklF+7etNhZIw+24et/QeyrzyHx4YCXN3eAD+0HYFCFW6mM9+oe cSId3/NKWtB/Knd+v34YaBIDUpBQRbtNqzTvbLrOeiSL0ij/oke+xdNX8UZMrqP0sCN9 JMNkpSE+cJA0FGnIsPKzfwvu3H30dznFpUyjX3hlNGbKH8LsnhZ5Q0xVrVw3heZza2M7 MMp/ENiCOkAIx1Q7ENzmLgMFo6wlhRibggbux9UmzLPhkPip2FDezs62EyAXdfKKruH+ OSnQ== X-Gm-Message-State: APjAAAWnAI5gkZ84gxOW6pWR1HVtBdFe5Vuwckgsxk7pMfc55qNsmqQo KmPW9Y0ZOzPkAFcCZs+eYw== X-Google-Smtp-Source: APXvYqxCcyskfrhNoa8a6tvucCyA7BESJMT49IgekYmQ2ko0v0dbnBSjI4RkW++kqxhqfDThrA+ABQ== X-Received: by 2002:a65:42c3:: with SMTP id l3mr30267732pgp.372.1560422739999; Thu, 13 Jun 2019 03:45:39 -0700 (PDT) Received: from mylaptop.redhat.com ([2408:8207:7825:dd90:9051:d949:55f9:678b]) by smtp.gmail.com with ESMTPSA id a13sm2813285pgh.6.2019.06.13.03.45.30 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 13 Jun 2019 03:45:39 -0700 (PDT) From: Pingfan Liu To: linux-mm@kvack.org Cc: Pingfan Liu , Ira Weiny , Andrew Morton , Mike Rapoport , Dan Williams , Matthew Wilcox , John Hubbard , "Aneesh Kumar K.V" , Keith Busch , Christoph Hellwig , Shuah Khan , linux-kernel@vger.kernel.org Subject: [PATCHv4 0/3] mm/gup: fix omission of check on FOLL_LONGTERM in gup fast path Date: Thu, 13 Jun 2019 18:44:59 +0800 Message-Id: <1560422702-11403-1-git-send-email-kernelfans@gmail.com> X-Mailer: git-send-email 2.7.5 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org These three patches have no dependency of each other, but related with the same purpose to improve get_user_page_fast(), patch [2/3]. Put them together. v3->v4: Place the check on FOLL_LONGTERM in gup_pte_range() instead of get_user_page_fast() Cc: Ira Weiny Cc: Andrew Morton Cc: Mike Rapoport Cc: Dan Williams Cc: Matthew Wilcox Cc: John Hubbard Cc: "Aneesh Kumar K.V" Cc: Keith Busch Cc: Christoph Hellwig Cc: Shuah Khan Cc: linux-kernel@vger.kernel.org Pingfan Liu (3): mm/gup: rename nr as nr_pinned in get_user_pages_fast() mm/gup: fix omission of check on FOLL_LONGTERM in gup fast path mm/gup_benchemark: add LONGTERM_BENCHMARK test in gup fast path mm/gup.c | 46 +++++++++++++++++++++++------- mm/gup_benchmark.c | 11 +++++-- tools/testing/selftests/vm/gup_benchmark.c | 10 +++++-- 3 files changed, 52 insertions(+), 15 deletions(-) -- 2.7.5