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=-3.8 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 D1325C3F2D2 for ; Fri, 28 Feb 2020 11:34:52 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 92D7A246A8 for ; Fri, 28 Feb 2020 11:34:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="lNZ+X5bP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 92D7A246A8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 2F29A6B0005; Fri, 28 Feb 2020 06:34:52 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 2A28E6B0006; Fri, 28 Feb 2020 06:34:52 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 192556B0007; Fri, 28 Feb 2020 06:34:52 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0005.hostedemail.com [216.40.44.5]) by kanga.kvack.org (Postfix) with ESMTP id F2AD96B0005 for ; Fri, 28 Feb 2020 06:34:51 -0500 (EST) Received: from smtpin15.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 9B780824556B for ; Fri, 28 Feb 2020 11:34:51 +0000 (UTC) X-FDA: 76539328782.15.roof21_64994ba7f6b26 X-HE-Tag: roof21_64994ba7f6b26 X-Filterd-Recvd-Size: 4323 Received: from mail-pg1-f195.google.com (mail-pg1-f195.google.com [209.85.215.195]) by imf28.hostedemail.com (Postfix) with ESMTP for ; Fri, 28 Feb 2020 11:34:51 +0000 (UTC) Received: by mail-pg1-f195.google.com with SMTP id t3so1387163pgn.1 for ; Fri, 28 Feb 2020 03:34:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=K5rhY3MMsxBQjyesCT+5yyhC1P4a9tgFxlDIS5/IhpI=; b=lNZ+X5bPCD5azWhtyH3092bOsJD/JsoVPQmyDEr9YX7kZ0t8QzVt1ajadkMsSvuIg3 rPa44oREe1N7leU8ifhF5nS42eb9HZgs6+Jda+uCpKLfp2pZce0kQ3yyttYfEVLRpzB9 8zkUQ5M8NNLZMfzoatqvGSXdZ3/BgsVdY2aKUhjNd4/uDeMBM+cHhRZcUYaP3OPR9RoY Yiw2eOo4aLeav49tFCLkSxWTueZDWffJ5UHU9pZgFEdmlCCDEQKntfQapwgk/ykcF1Ih TV4w6WhULcRU2oqf3jyg8jDj8p4/WbtGW2gJeoFSyhngaf8DhVggrOcKRf47PzyHcIGP PrLg== 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=K5rhY3MMsxBQjyesCT+5yyhC1P4a9tgFxlDIS5/IhpI=; b=FcHsWdEHE4hZRJNrP5JRQNxkZgVUwDxOImnOgTw0oSgQhA28eEp5yFxq5lkZJAEb0p V0Q7/6LRkaC5atUBYpyzkveQK+K0Xb9OWOcI6HFEZ93BWcCE9QE0dxXFyrDH/69VOm3b 5mDwHPYpvhoCHKmWVt2C8f91Nkoz+sYBkZgMXCFrS3uh7WXj9h9YZ6izRsz1l9mbtEuH QFWPbUgB70Des+uRNkgU4WVXSfeLgC1KbF8BIgN3Q1LHGzIHPQ4ZGgWE8Rvz5pAnodaO iaMmzRF6nEUT3nVgdgZnfAa3dnTtoyzvRCgeV5w8m0srzZjXZCz0mKUxkWIHUrkKr+gd 93JQ== X-Gm-Message-State: APjAAAUr8A0kNZI62Ihtp2eJS6hG+jX9WCAtk7o9oxGva4KYQhclMPJG IyeoUE6+Ul7kRZhkwBe346Mjo5lK0g== X-Google-Smtp-Source: APXvYqzcZfzXLBSX4VhzuXgeuqgybu00cuBY/mmXgK1gb23gnWBxpCcjiDygt0vcWezVMn+CsG0itA== X-Received: by 2002:a63:4763:: with SMTP id w35mr4278259pgk.113.1582889689803; Fri, 28 Feb 2020 03:34:49 -0800 (PST) Received: from mylaptop.redhat.com ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id d14sm11402168pfq.117.2020.02.28.03.34.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 28 Feb 2020 03:34:49 -0800 (PST) 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: [PATCHv5 0/3] fix omission of check on FOLL_LONGTERM in gup fast path Date: Fri, 28 Feb 2020 19:32:27 +0800 Message-Id: <1582889550-9101-1-git-send-email-kernelfans@gmail.com> X-Mailer: git-send-email 2.7.5 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: The last V4 series: https://lore.kernel.org/patchwork/project/lkml/list/?series=397950, and be dropped from mm tree due to conflict with "RFC: switch the remaining architectures to use generic GUP" [1] I rebase it and sent out V5. V4 -> V5: move around the patched code due to code change. [1]: https://lore.kernel.org/linux-mm/20190601074959.14036-1-hch@lst.de/ 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 To: linux-mm@kvack.org 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 | 7 +++++ tools/testing/selftests/vm/gup_benchmark.c | 6 +++- 3 files changed, 41 insertions(+), 18 deletions(-) -- 2.7.5