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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F1FCC433F5 for ; Fri, 3 Dec 2021 15:49:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1381887AbhLCPwu (ORCPT ); Fri, 3 Dec 2021 10:52:50 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:54529 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1381883AbhLCPwq (ORCPT ); Fri, 3 Dec 2021 10:52:46 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1638546562; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=wn/B+NRo5r0JBN9o4MkIX7l2zDFt6F/saJZ6BQL4N2U=; b=iz545Ge+39Y311hGLbP0VYhWkbZ82f0+pES8iYLXFB+l3b+FAlyAFK1BHATebzM5J3AmZX Y0D2EWr634W93GG0WTDnNrXAxfwBhfkc27ErwdWlcfc/qr/x6Z6+pQNA9wg7+boS3zk5th 4zMUmcAq6KP80BB/+CtCRpYMXOhkt+k= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-501-HOKEf28RNnitHRFnrAW8XA-1; Fri, 03 Dec 2021 10:49:20 -0500 X-MC-Unique: HOKEf28RNnitHRFnrAW8XA-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2898881CCBA; Fri, 3 Dec 2021 15:49:19 +0000 (UTC) Received: from [10.22.32.36] (unknown [10.22.32.36]) by smtp.corp.redhat.com (Postfix) with ESMTP id 10ABE5DAA5; Fri, 3 Dec 2021 15:49:17 +0000 (UTC) Message-ID: <7961d0f7-d1e4-d631-5806-58607e50279d@redhat.com> Date: Fri, 3 Dec 2021 10:49:17 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.3.0 Subject: Re: [PATCH v2 0/2] locking: Fix racy reads of owner->on_cpu Content-Language: en-US To: Kefeng Wang , Peter Zijlstra Cc: Ingo Molnar , Will Deacon , Boqun Feng , Thomas Gleixner , Mark Rutland , "Paul E. McKenney" , linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com References: <20211203075935.136808-1-wangkefeng.wang@huawei.com> From: Waiman Long In-Reply-To: <20211203075935.136808-1-wangkefeng.wang@huawei.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12/3/21 02:59, Kefeng Wang wrote: > v2: > - adding owner_on_cpu() refactor, shared by mutex/rtmutex/rwsem > > v1: https://lore.kernel.org/all/20211202101238.33546-1-elver@google.com/ > > Kefeng Wang (1): > locking: Make owner_on_cpu() into > > Marco Elver (1): > locking: Mark racy reads of owner->on_cpu > > include/linux/sched.h | 9 +++++++++ > kernel/locking/mutex.c | 11 ++--------- > kernel/locking/rtmutex.c | 5 ++--- > kernel/locking/rwsem.c | 9 --------- > 4 files changed, 13 insertions(+), 21 deletions(-) > LGTM Acked-by: Waiman Long