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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 E9AF7C433DB for ; Mon, 4 Jan 2021 13:57:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9F2FE224F9 for ; Mon, 4 Jan 2021 13:57:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726961AbhADN5o (ORCPT ); Mon, 4 Jan 2021 08:57:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54790 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725830AbhADN5n (ORCPT ); Mon, 4 Jan 2021 08:57:43 -0500 Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D03DDC061793 for ; Mon, 4 Jan 2021 05:57:02 -0800 (PST) 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; bh=BgK+tHIAID6FnwyvohuHOU0I3PpkqQNmrVg98TE0ETQ=; b=dWBxmjF9jwT4GAQBFonWa1cSRV 0OYJ3p4ypkH7Lpc/QzdG3Yh3orumStDYkiqkr+HlIk0/1dFjY3r+9gy9sKUw1xH/5j5iGNb130Oy6 jyd7dyi2BMh/3XEUW7G6F2iL/Z6Mfbz36hTqGn351U5f/OfX/wJYkPzzKZgmBqusGZ/rYC0MzFu5c ttsrZCxUcug8wvVDMtvXOoV9k227T/YJqKyxsV7gWdoGg8zkpheQctc3yAhoVn+AP5UOUIzNxZEKM HP8h9rO/J3pmkcBoqy4WxIpmu0bjHFGFsMKOuu6gCzfrKaIZsh1nSbo/Pz5zjKv3bEKS030/VmYT4 V9ecTZJA==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kwQLs-000732-FW; Mon, 04 Jan 2021 13:56:52 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 3601C300446; Mon, 4 Jan 2021 14:56:50 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id F388920248726; Mon, 4 Jan 2021 14:56:49 +0100 (CET) Date: Mon, 4 Jan 2021 14:56:49 +0100 From: Peter Zijlstra To: Lai Jiangshan Cc: linux-kernel@vger.kernel.org, Valentin Schneider , Qian Cai , Vincent Donnefort , Dexuan Cui , Lai Jiangshan , Tejun Heo Subject: Re: [PATCH -tip V3 3/8] workqueue: introduce wq_online_cpumask Message-ID: <20210104135649.GO3021@hirez.programming.kicks-ass.net> References: <20201226025117.2770-1-jiangshanlai@gmail.com> <20201226025117.2770-4-jiangshanlai@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201226025117.2770-4-jiangshanlai@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Dec 26, 2020 at 10:51:11AM +0800, Lai Jiangshan wrote: > From: Lai Jiangshan > > wq_online_cpumask is the cached result of cpu_online_mask with the > going-down cpu cleared. You can't use cpu_active_mask ?