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=-17.4 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT, USER_IN_DEF_DKIM_WL autolearn=ham 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 B2DDAC43331 for ; Fri, 27 Mar 2020 02:11:08 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 764CD2074D for ; Fri, 27 Mar 2020 02:11:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="nd1CtBFc" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 764CD2074D Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 1A9AC6B0036; Thu, 26 Mar 2020 22:11:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1835D6B0037; Thu, 26 Mar 2020 22:11:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 06F886B006C; Thu, 26 Mar 2020 22:11:07 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0185.hostedemail.com [216.40.44.185]) by kanga.kvack.org (Postfix) with ESMTP id E2DA16B0036 for ; Thu, 26 Mar 2020 22:11:07 -0400 (EDT) Received: from smtpin02.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id B76BD8248047 for ; Fri, 27 Mar 2020 02:11:07 +0000 (UTC) X-FDA: 76639514574.02.line08_9d0583a8d509 X-HE-Tag: line08_9d0583a8d509 X-Filterd-Recvd-Size: 4177 Received: from mail-pf1-f201.google.com (mail-pf1-f201.google.com [209.85.210.201]) by imf32.hostedemail.com (Postfix) with ESMTP for ; Fri, 27 Mar 2020 02:11:07 +0000 (UTC) Received: by mail-pf1-f201.google.com with SMTP id f75so7022538pfa.13 for ; Thu, 26 Mar 2020 19:11:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=5IcQYYvEOpf9NGuTwGi2Hn9JVgRq+o118uhRqu7k0m0=; b=nd1CtBFcTZEGQcDkT14QoA4Yt3oF33FVgLCEDBR2Q7ayEh/pg5mxeQei8Hq6Qn/fQN dnvae75F9n2TtcYdf4RCvvHCcmR8c4+8qU/cTzfGkGlswnCmlgVaWb3zeCV/UmRCOThK ffEw6O7z9sjLvRugSKN6fwq2aWH93kF22ftaeZBjBrBN8bVVTSaBSNj6b+EuPcoaS0Bc qYL103D7NSB5dr8XVVEIOJzQtuRRSqJSfW0sAIWuExMN26s2VyTogQwN2Ulb+bgyQzUq 6XW+y6ZMN2ev1vLcSUTw7Q1PT5IbehalfTH0WflgQfqJgCwpW8WXF/OpN84zvj5v+39c jqwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=5IcQYYvEOpf9NGuTwGi2Hn9JVgRq+o118uhRqu7k0m0=; b=n6YuxzjtmQjk2YA3QzHzZ/U1k9EUSTxYTaP7VekVLpoSjI9tRn6KPA8kyK/++uVo30 qPAbgmB37E+X3zuj5RzAYjcTXOntScuSNhcallNJOyEXw58NZXmkdEPjQCbJ71FHFtKD NZcl48aetxm6ybkcswHV5mv8pbMFR8aBtPqBFTcWr5fW7Fs65eQuBa+Mt/fFw5mhlnZa bebTde8GYpmvq+NJAHjNvRKK0Sp+tZmSpcwO1h30E5e4rrZ6qo43HtZ2T0c7EY4i0RoZ GhmfUf7t/rOztdFR8TLXty5ZV1lsDQL2+98LRa/J+mRHFSAv8icsEy0Xsq1WjCquG0zg QqWw== X-Gm-Message-State: ANhLgQ34eQMHWtKGJb1qyyeSmnzBKLtOd8jyU24L3T9YgqpNUpIoy4Jw 8DumKQvyAg9GHHQoymGTl/DDgo7bxPM= X-Google-Smtp-Source: ADFU+vukgJsaKkjiJl9jV3Uag6Yq8m6U/B+bL9fZPSlqRx0VPEEqdKN0rSymuE2xHRSkZ6VEB9E4A/A6zSE= X-Received: by 2002:a17:90a:264f:: with SMTP id l73mr3221253pje.92.1585275065886; Thu, 26 Mar 2020 19:11:05 -0700 (PDT) Date: Thu, 26 Mar 2020 19:10:50 -0700 In-Reply-To: <20200327021058.221911-1-walken@google.com> Message-Id: <20200327021058.221911-3-walken@google.com> Mime-Version: 1.0 References: <20200327021058.221911-1-walken@google.com> X-Mailer: git-send-email 2.26.0.rc2.310.g2932bb562d-goog Subject: [PATCH v2 02/10] MMU notifier: use the new mmap locking API From: Michel Lespinasse To: Andrew Morton , linux-mm Cc: LKML , Peter Zijlstra , Laurent Dufour , Vlastimil Babka , Matthew Wilcox , Liam Howlett , Jerome Glisse , Davidlohr Bueso , David Rientjes , Hugh Dickins , Ying Han , Jason Gunthorpe , Markus Elfring , Michel Lespinasse Content-Type: text/plain; charset="UTF-8" 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: This use is converted manually ahead of the next patch in the series, as it requires including a new header which the automated conversion would miss. Signed-off-by: Michel Lespinasse --- include/linux/mmu_notifier.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h index 736f6918335e..2f462710a1a4 100644 --- a/include/linux/mmu_notifier.h +++ b/include/linux/mmu_notifier.h @@ -5,6 +5,7 @@ #include #include #include +#include #include #include @@ -277,9 +278,9 @@ mmu_notifier_get(const struct mmu_notifier_ops *ops, struct mm_struct *mm) { struct mmu_notifier *ret; - down_write(&mm->mmap_sem); + mmap_write_lock(mm); ret = mmu_notifier_get_locked(ops, mm); - up_write(&mm->mmap_sem); + mmap_write_unlock(mm); return ret; } void mmu_notifier_put(struct mmu_notifier *subscription); -- 2.26.0.rc2.310.g2932bb562d-goog