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 00841C2D0E7 for ; Thu, 26 Mar 2020 07:02:46 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id BAEFE20772 for ; Thu, 26 Mar 2020 07:02:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="LmUQdBDe" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BAEFE20772 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 6E0956B000D; Thu, 26 Mar 2020 03:02:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6691A6B000E; Thu, 26 Mar 2020 03:02:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 5A79B6B0010; Thu, 26 Mar 2020 03:02:45 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0129.hostedemail.com [216.40.44.129]) by kanga.kvack.org (Postfix) with ESMTP id 3FEEA6B000D for ; Thu, 26 Mar 2020 03:02:45 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 3738E181AC9CC for ; Thu, 26 Mar 2020 07:02:45 +0000 (UTC) X-FDA: 76636620690.28.place56_17ff1ebae5b38 X-HE-Tag: place56_17ff1ebae5b38 X-Filterd-Recvd-Size: 4084 Received: from mail-pg1-f202.google.com (mail-pg1-f202.google.com [209.85.215.202]) by imf12.hostedemail.com (Postfix) with ESMTP for ; Thu, 26 Mar 2020 07:02:44 +0000 (UTC) Received: by mail-pg1-f202.google.com with SMTP id k67so4026497pga.2 for ; Thu, 26 Mar 2020 00:02:44 -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=nanV+r4IHUqeQck6GgJYnAFKZtppjERc1ou3yY6xyBw=; b=LmUQdBDejAspO3PcKB4zLsQohmBqVwbHT1UyMB4iIUpqCUBTZzktu8nyeHvZTaA0hk oNcJc8OCZPgCQYxD8S3se5Z/E7sNU55V4gpf3s1nQW25tLvnWaQ5YBqve2cWOWHkS+aG Em39wZpEZR5j1YccH3IFocIDstDiIZLbDk7eMXJUGSDMqexG99DNX0yEYA/xi7i/czs6 +u8luaxJgpwJI+KkhuaQPzaMEAqA1PhH4+MznL3LfX/vUMVivuDTeZRIkYG/5h/hHDE0 n1Bo5gVT9ckfPbuTfj2cHU1u9W78Rm7Wa7GKt3guIrHNQSg85+W+CKfC2WIxiTHhwdag /yww== 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=nanV+r4IHUqeQck6GgJYnAFKZtppjERc1ou3yY6xyBw=; b=JyQ4hPDqd4HuxohUA8Zm/on926YY9WmswbWWv0kn/ZXaUPnDjiEn5J/rviZV+wfExs VnEzA6FjI4XdQWvQtm39dk0ovMdNLZOBAZ1hNzjKFqIm8CChJsdULnJy8BfWFDmHJQaI YVNXL6ype67qlzx+ulam6AQ/54Ii4YzCh7Rj9dkVk5LG8kaTlZTShCfPWHDgQV/beQiY No4eF8ztIVZU0aZYtqt5irfk5VyEr18Onlw4eAvY6zyJTJYZv9PIIF7+DQJ8nNK+7k2m YUBC+BEWmBJKxWycY5p0IjqhEGAoqjw81GfrWv/kYFJNNE2w5NvRLqk2bklfcBeGKCen YA2Q== X-Gm-Message-State: ANhLgQ3qhQ1PoSQywgfQvUIFmGKKrcqZLki/GnAbvlPNqtAg00+0YNxA q8aLDM9uRYIWds07YqV8XJSamhIu//E= X-Google-Smtp-Source: ADFU+vvuAUqsuHn1JjDrf5Rb1rHNy26IhDPkLLb/EupUwsNN9p2UUhFu44cCHrPhifWwqyRof5N9SY1oKWs= X-Received: by 2002:a63:1517:: with SMTP id v23mr6799206pgl.89.1585206163502; Thu, 26 Mar 2020 00:02:43 -0700 (PDT) Date: Thu, 26 Mar 2020 00:02:30 -0700 In-Reply-To: <20200326070236.235835-1-walken@google.com> Message-Id: <20200326070236.235835-3-walken@google.com> Mime-Version: 1.0 References: <20200326070236.235835-1-walken@google.com> X-Mailer: git-send-email 2.25.1.696.g5e7596f4ac-goog Subject: [PATCH 2/8] 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 , 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); -- 2.25.1.696.g5e7596f4ac-goog