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[209.132.180.67]) by mx.google.com with ESMTP id d17-v6si1502657pls.611.2018.03.20.05.38.50; Tue, 20 Mar 2018 05:39:04 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=merlin.20170209 header.b=vWgAAm3X; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753434AbeCTMhk (ORCPT + 99 others); Tue, 20 Mar 2018 08:37:40 -0400 Received: from merlin.infradead.org ([205.233.59.134]:35370 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753248AbeCTMha (ORCPT ); Tue, 20 Mar 2018 08:37:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=1fHsE1nmcgWwly8CDahs/GNTh68IaNBKHRdRUm6rBaE=; b=vWgAAm3XJK28k0VUuqTFsldwe BARezZg/CK148m23Z50hOJRZ3UoSdl3ALfA7c1RAtvziyTWFIuWYglzt8NAxLuuWoBwgxeZaUvPe2 j8M+t8h5Ed8i2+rfsnDIhft7G+A0B/zLgegoYXwcTJEZimwUP0JjHMEowedE96NfKuXDSSQpig1TN 4ET9TVMmXiT9jkVRSDk8HlpY/Fv8NWcXsW4t0myuoc4LE2trR29hszw2YijwKzBkqbHNDHHVvkfcw K9e2CaMGEF0t8r+A/VZWY2fXmypRY808+YCpn77q22uFSwJyP2P9KJI8GRueXdruEnim//eMkIr5Q R0NV0cB0A==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1eyGVv-0005zb-7N; Tue, 20 Mar 2018 12:37:15 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id C0D80202A2A01; Tue, 20 Mar 2018 13:37:12 +0100 (CET) Date: Tue, 20 Mar 2018 13:37:12 +0100 From: Peter Zijlstra To: Dou Liyang Cc: linux-kernel@vger.kernel.org, x86@kernel.org, linux-acpi@vger.kernel.org, linux-doc@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com, corbet@lwn.net, rjw@rjwysocki.net, lenb@kernel.org, hpa@zytor.com Subject: Re: [PATCH 1/5] x86/smpboot: Add the missing description of possible_cpus Message-ID: <20180320123712.GR4043@hirez.programming.kicks-ass.net> References: <20180320110432.28127-1-douly.fnst@cn.fujitsu.com> <20180320110432.28127-2-douly.fnst@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20180320110432.28127-2-douly.fnst@cn.fujitsu.com> User-Agent: Mutt/1.9.3 (2018-01-21) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Mar 20, 2018 at 07:04:28PM +0800, Dou Liyang wrote: > + possible_cpus= [s390,x86_64] Use this to set hotpluggable cpus. > + This option sets possible_cpus bits in cpu_possible_map. > + Thus keeping the numbers of bits set constant even if > + the machine gets rebooted. That description, esp. the last sentence, doesn't make any kind of sense to me. What?