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=-5.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, 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 08FB4C388F9 for ; Fri, 23 Oct 2020 02:22:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 85AC521527 for ; Fri, 23 Oct 2020 02:22:37 +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="slXWMhQx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S374549AbgJWCWg (ORCPT ); Thu, 22 Oct 2020 22:22:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S374540AbgJWCWf (ORCPT ); Thu, 22 Oct 2020 22:22:35 -0400 Received: from mail-pl1-x62c.google.com (mail-pl1-x62c.google.com [IPv6:2607:f8b0:4864:20::62c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4A178C0613CF for ; Thu, 22 Oct 2020 19:22:34 -0700 (PDT) Received: by mail-pl1-x62c.google.com with SMTP id 1so73204ple.2 for ; Thu, 22 Oct 2020 19:22:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:from:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=eRN4VvkSMjUAVDmvFO/IncAAF1JRwx57SYil1mK0hAM=; b=slXWMhQxek5pnsMwGTEvDRG4YA6tDbAOYvEjfIC8RRGgXggbmO/g/RencIIRqT6PCH lR2d3JcOdabY70CuW/ydgjEEgTTwRBHXnArQk/gCyp0N5WoHYZKEzWc1nrNLkB2qChD3 bf/qf07/zzgoveQ+AZbBQ8I2DsHCkxHDhD4uGAnMOPE/GXYIN7aev4kKIVlUzJJk0/sm yKscOn+UlK4wfXhd8w3qFUPU3GF1sH2HnJcegEEFt4YrB7WDAKubaJ1uFQjqEtx+f7rG ycKCnNf1Dy7LCEe+vKWIt9cuRf1ivCYf8q0Xg3QGW2JSbHFG7BMaD90RI+m4lt5wZDoX H+zA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:from:to:cc:references:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=eRN4VvkSMjUAVDmvFO/IncAAF1JRwx57SYil1mK0hAM=; b=mT7rAfxrG4Qi10COyWJCPp3aooUkJyWcQGmOwvc/2Ze40mwV/A1toPiXPkNxxSCt6y xLFEusB89OzrG6sBFDLCiIf7LUWrdFQoxu4J0+3aAE4+h5uimYBbU2vIxYkuDjObsoAZ MNEIR0L3FnOYyNo/5HgCZBQGvYYHvk9vkE/YK3xHNWH/szpoejBx9nnA4Qc+YTXC/r3w HVrPvn3KpYjEmJ2KIp6J/HA5tRqC1VGc6WhPQ/Kq1saOetqfU2Gn0JuHK/qPEraZJdTW cqE5HA91baPe3CPQKJqcttQxAjKTipvBoMHgqpSWj56Bs1zVU49fMtuV6akGKRkFjXD4 jI2g== X-Gm-Message-State: AOAM531QeAD2r3pV8rx+Fv/OXLZITcgKsgc3A5EtPpFztDOE0iTZs/3c OByWFwiPnMw1csF5G0Z8UYbzAw== X-Google-Smtp-Source: ABdhPJzgfYFUQi8ELACtuNjezZ830A5139WU+lqteVcVKP9/8bjfccP89Stp1zFoRmnIZEw68D1vYg== X-Received: by 2002:a17:902:708a:b029:d4:cf7c:6c59 with SMTP id z10-20020a170902708ab02900d4cf7c6c59mr83549plk.52.1603419753508; Thu, 22 Oct 2020 19:22:33 -0700 (PDT) Received: from [192.168.1.134] ([66.219.217.173]) by smtp.gmail.com with ESMTPSA id il17sm138073pjb.39.2020.10.22.19.22.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 22 Oct 2020 19:22:32 -0700 (PDT) Subject: Re: [PATCHSET v6] Add support for TIF_NOTIFY_SIGNAL From: Jens Axboe To: linux-kernel@vger.kernel.org, io-uring@vger.kernel.org Cc: peterz@infradead.org, oleg@redhat.com, tglx@linutronix.de References: <20201016154547.1573096-1-axboe@kernel.dk> Message-ID: Date: Thu, 22 Oct 2020 20:22:31 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <20201016154547.1573096-1-axboe@kernel.dk> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org On 10/16/20 9:45 AM, Jens Axboe wrote: > Hi, > > The goal is this patch series is to decouple TWA_SIGNAL based task_work > from real signals and signal delivery. The motivation is speeding up > TWA_SIGNAL based task_work, particularly for threaded setups where > ->sighand is shared across threads. See the last patch for numbers. > > Cleanups in this series, see changelog. But the arch and cleanup > series that goes after this series is much simpler now that we handle > TIF_NOTIFY_SIGNAL generically for !CONFIG_GENERIC_ENTRY. Any objections to this one? I just rebased this one and the full arch series that sits on top for -git, but apart from that, no changes. Thomas, would be nice to know if you're good with patch 2+3 at this point. Once we get outside of the merge window next week, I'll post the updated series since we get a few conflicts at this point, and would be great if you could carry this for 5.11. -- Jens Axboe