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=-5.5 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,URIBL_BLOCKED,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 6AB29C43457 for ; Fri, 9 Oct 2020 15:16:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 32CBD222C2 for ; Fri, 9 Oct 2020 15:16:24 +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="MA72PDCM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389220AbgJIPQX (ORCPT ); Fri, 9 Oct 2020 11:16:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388930AbgJIPQW (ORCPT ); Fri, 9 Oct 2020 11:16:22 -0400 Received: from mail-pl1-x643.google.com (mail-pl1-x643.google.com [IPv6:2607:f8b0:4864:20::643]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BE3CCC0613D5 for ; Fri, 9 Oct 2020 08:16:22 -0700 (PDT) Received: by mail-pl1-x643.google.com with SMTP id b19so4605066pld.0 for ; Fri, 09 Oct 2020 08:16:22 -0700 (PDT) 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=s/sPpyq4lTHRHob1KiXQqTKj8DhUh+ZWT1QGn6lwICM=; b=MA72PDCMnz5+Uq0lokZDZUEz3/+onI2Fuanfh7FHn4b+sxJa3oAafzDdytqYm9uG3e vhWLRkT7To8dAIcQbV+VFwgGVzkbXG212ZftJNXt4djRHHAD/pOIf+zIgN917a5R/HrG IakIlh1PEjZHtdzmVbVnz4uKPKRItJOQWtM8qq/fa3HeBItRx7oiY+qBDRIF1hNNxnf6 vJoOcbbrqNYeBaMI92YHmfm1vnjx1PKLdN3fK2BGZzkK5uwaOc4jIIAvE4eQ6YW8OFyy v/AL6YmvrbYQIvl9EaDybCG2nuYnrCoKpkjJqtahDLXng75amzff3j2HVeYOAKiUVARZ dQRA== 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=s/sPpyq4lTHRHob1KiXQqTKj8DhUh+ZWT1QGn6lwICM=; b=qp4j4RnbYQ530+RTd84Tbn5ZjWSN6tm0ddEfaIT6AvfP9CeE5j63mCCx6lXFFGw/zd LVYSDE00DmpcHPnUPwZAsjAZ3vVDoUrd2fgGeCebPNVDAbT4fimUK02ShRrVLnG+YX0U AYPxaNaNPyuzXL1Qk8dkX0u1bxM7OQtcni/TcqwteeJlVTiAbp52t8/MynmPI4pD6dr7 WhZzPlLLVaz+WI6ziZTn/CQDyPK/J70Io5o5DC1nEoagICV/tiyHT2GY6BPmdvEXPENL 2BaOkQO2uGeQL6x8DmGVCtoZCyeOq+jTKvIWpRVH03byUkxfaCFf/X908G/rlN3y13V8 BqLg== X-Gm-Message-State: AOAM533Nvd7sAXdde1XxNdZwgFYOXUbazeP1NyhnYIXvkEBydksbWJu5 lIjc3MTI752kSdxNOsrpBHsY7A== X-Google-Smtp-Source: ABdhPJy4sehD0xdkrNx3fIXPsV8QMpK1YcRBTKuxAUvdGBnKYWNpnzCG5Tp2QVxXB7EkHo2BnfMpUA== X-Received: by 2002:a17:902:54e:b029:d2:ab75:3864 with SMTP id 72-20020a170902054eb02900d2ab753864mr12399618plf.50.1602256582273; Fri, 09 Oct 2020 08:16:22 -0700 (PDT) Received: from [192.168.1.134] ([66.219.217.173]) by smtp.gmail.com with ESMTPSA id n125sm11249062pfn.185.2020.10.09.08.16.20 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 09 Oct 2020 08:16:21 -0700 (PDT) Subject: Re: [PATCHSET v4] Add support for TIF_NOTIFY_SIGNAL To: Oleg Nesterov Cc: linux-kernel@vger.kernel.org, io-uring@vger.kernel.org, peterz@infradead.org, tglx@linutronix.de References: <20201008152752.218889-1-axboe@kernel.dk> <20201009143009.GA14523@redhat.com> From: Jens Axboe Message-ID: <8f9d8948-7e20-f0f1-7722-e7c0c6531b6f@kernel.dk> Date: Fri, 9 Oct 2020 09:16:19 -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: <20201009143009.GA14523@redhat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/9/20 8:30 AM, Oleg Nesterov wrote: > On 10/08, Jens Axboe wrote: >> >> Changes since v3: >> >> - Drop not needed io_uring change >> - Drop syscall restart split, handle TIF_NOTIFY_SIGNAL from the arch >> signal handling, using task_sigpending() to see if we need to care >> about real signals. >> - Fix a few over-zelaous task_sigpending() changes >> - Cleanup WARN_ON() in restore_saved_sigmask_unless() > > Reviewed-by: Oleg Nesterov Thanks, added. > but let me comment 3/4... Updated for that one too, this is the current patch: https://git.kernel.dk/cgit/linux-block/commit/?h=tif-task_work&id=b6d5da9ba8e31f7b222172c1626cfd0f5d035083 -- Jens Axboe