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 D69FDC2D0E7 for ; Fri, 27 Mar 2020 02:11:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AA82E20848 for ; Fri, 27 Mar 2020 02:11:17 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="nd1CtBFc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727763AbgC0CLH (ORCPT ); Thu, 26 Mar 2020 22:11:07 -0400 Received: from mail-pj1-f74.google.com ([209.85.216.74]:54388 "EHLO mail-pj1-f74.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727708AbgC0CLH (ORCPT ); Thu, 26 Mar 2020 22:11:07 -0400 Received: by mail-pj1-f74.google.com with SMTP id p14so6207002pjo.4 for ; Thu, 26 Mar 2020 19:11:06 -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=H6/R/JimwXu/ehbJxQZLZRkE/tPRoclGZM1p+NJnVuyjqVDaBUZxlUfzjuhrvVbW3W ELhI+rPQInFR5qHM6Z8JI1Dn8LAvIoeVGWFkeD7tWAzvsqusxa9zNHhaCylnn31lD2jG +9jEu7BLYqzb59ltNP04Ogtqlbl4BQfIs6910lfqVw2uUago/vjCmeb41jjYNuMJga+/ mvELLGaAW2gl5hRrMrSKur3oRkovagYRoIIOet8Q0bLKFqojTGfJZteQmhz9YSrVT1V2 1pPTpVYm0pXC0ITonPG+cFTM8U9sZa4GMIdQvOoA+UhELfVgHkAJii0C0QSyszT43b5I 8BIw== X-Gm-Message-State: ANhLgQ2CNrPr4gpIQWdAUtldJby7wJopPsbVhaJDpoCaIB6wk7SQBeGc dGDQ8a4fUhxXJ9G7bkzVeU+M14mt4/I= 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" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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