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 6F8FEC2BB1D for ; Wed, 15 Apr 2020 00:44:03 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3397B206D9 for ; Wed, 15 Apr 2020 00:44:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Ti+khZf/" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3397B206D9 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 8E7338E0007; Tue, 14 Apr 2020 20:44:02 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 8BEF98E0001; Tue, 14 Apr 2020 20:44:02 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 7FCF18E0007; Tue, 14 Apr 2020 20:44:02 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0251.hostedemail.com [216.40.44.251]) by kanga.kvack.org (Postfix) with ESMTP id 63A2E8E0001 for ; Tue, 14 Apr 2020 20:44:02 -0400 (EDT) Received: from smtpin11.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 19D54181AEF1E for ; Wed, 15 Apr 2020 00:44:02 +0000 (UTC) X-FDA: 76708242324.11.watch97_404d62ceec34c X-HE-Tag: watch97_404d62ceec34c X-Filterd-Recvd-Size: 4225 Received: from mail-pj1-f74.google.com (mail-pj1-f74.google.com [209.85.216.74]) by imf27.hostedemail.com (Postfix) with ESMTP for ; Wed, 15 Apr 2020 00:44:01 +0000 (UTC) Received: by mail-pj1-f74.google.com with SMTP id o13so14590359pjb.7 for ; Tue, 14 Apr 2020 17:44:01 -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=suz1EhXK6txScI3xpdwgKIxDFIXOtGI8ldkhb5885kw=; b=Ti+khZf/3/BEcJAj8S4NmTmXOgN2weqkT9E7KR3kMX9UTDO3u19tqZDru+Gk1D3mPg zdy4003AK3Ye8wdXX8Dd3KudSWfUOcnJT8S5E15M++2KJK9CF10ldO/CuushRrUes0Bl lR/Q8G6Ad2BZFk0QLQy/wzEJYOljcyJPeH902KX//W4T+ZQ7+6VThLRLYM7ZzTxcvTpG 3+P+rWtjfDQuyxLIdHF4rHxZn8aZYYlASbzgK99zebEV1dEB1asgsqmsMggbW+uPmF8X CczglqLr11PivEr50456AteD4O/AGBgDn7uebWXnuZhOyIy474yZfaZg973Vt+9QbXe9 z7Pg== 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=suz1EhXK6txScI3xpdwgKIxDFIXOtGI8ldkhb5885kw=; b=es7cbvXG7MT+s1F+anzDaR98O/VMssfpclGZr9pdtetE3roVXjvcN3VzXpIzY5yKTV knVLMqcGEHSSEelRIId+G3RejxPBHQBOgQ6FCdu6QCDS98Yeqp/hUPsCSCLWJvz8x9IH bCrifMUWcQka74A7VlvFS3mR+C+kvTJr+OnXxC05OHFPkfyQxsqtFSNZLsTPUiCE8BcD W/i0Tus0pEhuIk1GOCBFnK/4YwizbdtEFFGarKKg7ULhvIuo7J9wLRQTQ3tD+4O8rrQR aCVwyrK6FnBDflleBB64gvntBlaj551ucv+QnBacrEJGjDLkgZ8JCyNN5u5fqupGSj1+ l6vA== X-Gm-Message-State: AGi0PuZJk8jIELA8ShIq0kgdiRIw+7W2K4wnlPRJueeoFPJgOyT/TA0Z pp7ddD2WBc4Dmgap5eD3lyg+3G5CRaY= X-Google-Smtp-Source: APiQypKAyv1yhvkkRbPjctxvsdVkI68qOYFwQHYRVDFvlXVI+VU7KLIhejLI3Mzwnld85g5owbOMzHVsItI= X-Received: by 2002:a17:90a:1681:: with SMTP id o1mr3128649pja.55.1586911440827; Tue, 14 Apr 2020 17:44:00 -0700 (PDT) Date: Tue, 14 Apr 2020 17:43:45 -0700 In-Reply-To: <20200415004353.130248-1-walken@google.com> Message-Id: <20200415004353.130248-3-walken@google.com> Mime-Version: 1.0 References: <20200415004353.130248-1-walken@google.com> X-Mailer: git-send-email 2.26.0.110.g2183baf09c-goog Subject: [PATCH v4 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 , Daniel Jordan , 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 Reviewed-by: Daniel Jordan --- 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); -- 2.26.0.110.g2183baf09c-goog