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[2620:137:e000::1:20]) by mx.google.com with ESMTP id b7-20020a170906194700b00991fe707692si6759817eje.63.2023.08.13.19.50.16; Sun, 13 Aug 2023 19:50:46 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=EmJruo35; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232340AbjHNCFs (ORCPT + 99 others); Sun, 13 Aug 2023 22:05:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232367AbjHNCFf (ORCPT ); Sun, 13 Aug 2023 22:05:35 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D5D01717 for ; Sun, 13 Aug 2023 19:03:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1691978638; 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: in-reply-to:in-reply-to:references:references; bh=OkkvN5LaeJ7jSZxGFsHd4Qul6dNlN5wnF04FypSAqNk=; b=EmJruo35XaHhK8JlvSfLEHsQWH+OgNNIMy/bw/gmA2xcLgMcwSN+nUgvpBVH/+wi6+uuIZ L4lmeTpdbTa3fsasKzAwIrzPfsFe2hpQS5XTKaadu+1as/UODuljfaQK2TNcvoYrJYGHxz Z0+/QucJM5xAAHO0qtAbTX2mk2ZJ6r4= Received: from mimecast-mx02.redhat.com (66.187.233.73 [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-459-BNu-ZOwjOI-42Xcp2PFdzA-1; Sun, 13 Aug 2023 22:03:54 -0400 X-MC-Unique: BNu-ZOwjOI-42Xcp2PFdzA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.rdu2.redhat.com [10.11.54.2]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id D89513C02532; Mon, 14 Aug 2023 02:03:53 +0000 (UTC) Received: from fedora (unknown [10.72.120.3]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 53B33400DE97; Mon, 14 Aug 2023 02:03:48 +0000 (UTC) Date: Mon, 14 Aug 2023 10:03:44 +0800 From: Ming Lei To: Guangwu Zhang Cc: Thomas Gleixner , linux-kernel@vger.kernel.org, Keith Busch , linux-nvme@lists.infradead.org, linux-block@lists.infradead.org, Yi Zhang , ming.lei@redhat.com Subject: Re: [PATCH] lib/group_cpus.c: avoid to acquire cpu hotplug lock in group_cpus_evenly Message-ID: References: <20230810021640.252033-1-ming.lei@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 3.1 on 10.11.54.2 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, RCVD_IN_DNSWL_BLOCKED,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello Thomas and Guys, On Fri, Aug 11, 2023 at 06:59:25PM +0800, Guangwu Zhang wrote: > Hi Ming, > I don't find any IO block after apply the patch. > > Tested-by: Guangwu Zhang Can you take a look at this fix? And this one solves a couple of nvme io hang report in case of cpu hotplug & reset involved. Thanks, Ming