Received: by 2002:a25:ad19:0:0:0:0:0 with SMTP id y25csp6628699ybi; Wed, 31 Jul 2019 18:18:17 -0700 (PDT) X-Google-Smtp-Source: APXvYqwsWyDz2dz1M91Ori2p2tKkPfrJuYpWH30w0bA3T2Brn8H17K0DUwqMqxLHAKDBOaxU9S5+ X-Received: by 2002:a65:4509:: with SMTP id n9mr62936412pgq.133.1564622297218; Wed, 31 Jul 2019 18:18:17 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1564622297; cv=none; d=google.com; s=arc-20160816; b=uOWSRcc0ArEdFm924qYcXfV+G6e4FH+94sVsnamSsCcUOEiHYTsSXfxAZQBHT3Tjin KHj6ihcmTECPWBlkOYFmyLxM6HnudhVWaH7WALB23KiMMFBoa3Y4R+faW73D07KXWhH6 YhtrVnJHCSNZsm9tSGF3c9tAQQrkf0USnSoFtvgj+8I2/wOAtxuDRY6OlzpCeEvEWipc Hp2o00GoT+PMDivLkdX4GyygKL01r6fIJbJrYmYK45xS8ksdAW/CkE7SnxuNj/WJqqxy ZoSCjDZHTbeQc1UAjTaKCSXtqZnNv64ZUdx2omC+Cfh+JO0SSztqrGmCRu4sORQ2z0Ej sBkA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:user-agent:references :message-id:in-reply-to:subject:cc:to:from:date; bh=UPUPWFYlLwH2MMKqvr7g28CGtmYbGb67PNyQXKj1SNs=; b=cFQN4e6AWBP+6IESY6zwhSm4qi0tSDR9adapMLtahIYI0PZKSLtgLmwkWaL9jvvgA+ 6gewPR5D4WZMXEAgVeA7GIHrqGK3N/PXcX/+N1jynSp0Nv5oHwWe1URXLmdnzmIIh1UM cmT27rlAMpE/Uc3refpk5ucY1q5sO1Yv2LrTkcjiSPcuI4RBCdQhJkdhsIefShFZegVg ImTctf86dLxQe9glMqEF340sWw1gbMVFNtLIJqXop6qkd81GCcAdIPks4ZIrQZbMK+jw M51FDPirj9ixCyzsPf+ZXSsr/6YOI+GtUbl/JyOKXWAhDatXIoiGG9sIzfoh239tq7y+ GL2A== ARC-Authentication-Results: i=1; mx.google.com; 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 Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t15si31984247plo.360.2019.07.31.18.18.01; Wed, 31 Jul 2019 18:18:17 -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; 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 S1730770AbfGaXdb (ORCPT + 99 others); Wed, 31 Jul 2019 19:33:31 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:33402 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725793AbfGaXdb (ORCPT ); Wed, 31 Jul 2019 19:33:31 -0400 Received: from pd9ef1cb8.dip0.t-ipconnect.de ([217.239.28.184] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1hsy62-00016P-8Q; Thu, 01 Aug 2019 01:33:26 +0200 Date: Thu, 1 Aug 2019 01:33:25 +0200 (CEST) From: Thomas Gleixner To: Gabriel Krisman Bertazi cc: mingo@redhat.com, peterz@infradead.org, dvhart@infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com Subject: Re: [PATCH RFC 1/2] futex: Split key setup from key queue locking and read In-Reply-To: <20190730220602.28781-1-krisman@collabora.com> Message-ID: References: <20190730220602.28781-1-krisman@collabora.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 30 Jul 2019, Gabriel Krisman Bertazi wrote: > split the futex key setup from the queue locking and key reading. This > is useful to support the setup of multiple keys at the same time, like > what is done in futex_requeue() and what will be done for the What has this to do with futex_requeue()? Absolutely nothing unleass you can reused that code there, which I doubt. Thanks, tglx