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=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 CE01BC3F2D2 for ; Fri, 28 Feb 2020 20:15:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A53E6246AE for ; Fri, 28 Feb 2020 20:15:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="sxkTmgFn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726998AbgB1UPQ (ORCPT ); Fri, 28 Feb 2020 15:15:16 -0500 Received: from mail-pf1-f195.google.com ([209.85.210.195]:44208 "EHLO mail-pf1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726046AbgB1UPQ (ORCPT ); Fri, 28 Feb 2020 15:15:16 -0500 Received: by mail-pf1-f195.google.com with SMTP id y5so2257062pfb.11 for ; Fri, 28 Feb 2020 12:15:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=zcCBLPTMOLEiaweLspv+BVLcuCaQqx+hfZZASz1/lU0=; b=sxkTmgFn64WH1R4LiPSYkVj5Rd/+r+hNLN9sTDKdBVTYXeoPZG0i8iZC7sxuc4nNhC KqP9X7SKmhvTNvFkKSgy7Hs2aom8Vi0R4o49Sj5C6WmGEfjioBcYPkEDMeWikuCrpeRj noyxXeaVqTC6oL5gAjD0YecgbHxpW31lkPowevNEWp9QAjf8X7eqhLEJYEQBtVHzKInp NAiehs273ha9i4sfWzGhF3S14KWROe6LOwCKfjXQcvKBF3AORzu0FwS191WqpRyLFts7 n2z+uciZrSyZInbA4zODAM6h666ytV2nBBSYwvRuE6D7LvbAbA+cneIDgnRyz6MiWu+o YHmg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=zcCBLPTMOLEiaweLspv+BVLcuCaQqx+hfZZASz1/lU0=; b=aaBDsoX4e1wIv5PfcUD3Tc4rykO1/IUM9ZhObgyFOUSdQ+YYTNnuJanHctBBMs9yqB Wim3UHXauoFh7EqjuD8AU3QJ7bHmRgNFpz1OsHIugoe2031rylOL0LA5OgM7Glc8FlSy V/eABiek5aOL6K6hQWwfvqLNlMXR3yIezyoXjI5ZKVg8kWHoOvWpgv+dftgYYcJN41y+ bwnpoVupB54UBxgD4oPm5gvEY9fZOPfUCezf/egRY4ovEIFvejzN5CHtEuzp9Qbl8e4t pgvWlH1jya6onpR6+apKfgj8WB3JQtwIJu5G6qF27rSJj3xcSoj8zVJGR0Sb6cW2JNTE p/xg== X-Gm-Message-State: ANhLgQ06sjIOEpc4Cb/dof7AjQ9rxMWQtoBNyKOEEzsmYapOGiyzlc6i Rl1s6JwPDJOmV5wIgcptTZPqRkjX1h4= X-Google-Smtp-Source: ADFU+vs3hRJK8rVZtacTGbT5b0e6kUFyZuqvH9bGZGEMT0BckDAuU/xmAhH1GXthDUyo3TFYZSYKlg== X-Received: by 2002:a62:ae13:: with SMTP id q19mr2324371pff.244.1582920913730; Fri, 28 Feb 2020 12:15:13 -0800 (PST) Received: from ?IPv6:2620:10d:c085:21d6::12c6? ([2620:10d:c090:400::5:410c]) by smtp.gmail.com with ESMTPSA id u7sm11780035pfh.128.2020.02.28.12.15.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Feb 2020 12:15:13 -0800 (PST) Subject: Re: [PATCH] task_work_run: don't take ->pi_lock unconditionally To: Peter Zijlstra Cc: Oleg Nesterov , =?UTF-8?B?Q2FydGVyIExpIOadjumAmua0sg==?= , Pavel Begunkov , io-uring References: <20200218150756.GC14914@hirez.programming.kicks-ass.net> <20200218155017.GD3466@redhat.com> <20200220163938.GA18400@hirez.programming.kicks-ass.net> <20200220172201.GC27143@redhat.com> <20200220174932.GB18400@hirez.programming.kicks-ass.net> <20200221145256.GA16646@redhat.com> <77349a8d-ecbf-088d-3a48-321f68f1774f@kernel.dk> <20200228192505.GO18400@hirez.programming.kicks-ass.net> <4c320163-cb3b-8070-4441-6395c988d55d@kernel.dk> <20200228200653.GP11457@worktop.programming.kicks-ass.net> From: Jens Axboe Message-ID: <4c14e794-d967-dbc4-2718-2562cf9a7077@kernel.dk> Date: Fri, 28 Feb 2020 13:15:11 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <20200228200653.GP11457@worktop.programming.kicks-ass.net> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: io-uring-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 2/28/20 1:06 PM, Peter Zijlstra wrote: > On Fri, Feb 28, 2020 at 12:28:54PM -0700, Jens Axboe wrote: > >> Shelf the one I have queued up, or the suggested changes that you had >> for on top of it? > > The stuff on top. OK all good, thanks for confirming. -- Jens Axboe