Received: by 2002:a05:6a10:7420:0:0:0:0 with SMTP id hk32csp803577pxb; Thu, 17 Feb 2022 15:20:30 -0800 (PST) X-Google-Smtp-Source: ABdhPJw6dAv9z/WvX+ksAi+toWsfKUG0u2mhrrjt117WFXJ8AO0FP1sbkQKCA0Ert8D9n4DEIROD X-Received: by 2002:a63:1d44:0:b0:373:5612:629b with SMTP id d4-20020a631d44000000b003735612629bmr4262040pgm.352.1645140030640; Thu, 17 Feb 2022 15:20:30 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1645140030; cv=none; d=google.com; s=arc-20160816; b=EAQtABnBJFNyjkeJ2VibwmF64csCN/DvPQhKJODnvj3EH+8Fxm6NrHQ/h+0Y3DlkLo Rte8Hdt7UT0MUZZivB9F94bVy5Jg92PYeHPiFkhB+s39OPnyR1gk0gOu629zLascDLOa Rs5Zn5eWL8tRqYeKMsVuJv2o/8N7LXYDkN4DzWf0S7H4agQrXAmj8+haYNAMNv8amV/0 4MaUVDcchqcI1lao7E+NH8EDwqhGP0HyDBmt8eYRy3mGxLl9w7GkVitx6vz0XZr/Alti 7l2NnIhNSNNVIlSGCbBOneIoTBnLT/5Rea2zzaad0S7pTC79gWybRGE30qYoaEWrZszQ GjXw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:in-reply-to:subject :from:references:cc:to:content-language:user-agent:mime-version:date :message-id:dkim-signature; bh=1+wuSPGqInJTXF1WSMnW5S9JPVd8nQUvsA9MXOgLl5Y=; b=TM5zAuZWKW8w1YW9A+aB6iyzJdIwN4352k91/Ro/OeePaj5O2sCpuMvhEZyL0tymTx SKDz/ypP/sz9dT/G5pyd4lX5zSSNzkY4+C2uNBFMrou4bAu+DAzTJi06f/q/yvq82b1X d6xAY+um40A808iqw8n3rTgrfdzw8NlLbSJPmoChnhG25VEG6ZvwNRmWhFx2E0Q/PdZO tl/IdZ4g+B44QteSm1m0mH5zx/Fe26jmA6y358X4CMB14mJ4/KU6NjEnOBN8jIXuZfm4 T4mrgELxxRpV35ynR5T7oug9fzK6DJYu7W/2lbakREAAz3oZFKKqTXPQzbXnncXtl3oP 6B5w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=Wkc2oSrj; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net. [2620:137:e000::1:18]) by mx.google.com with ESMTPS id z11si956528pfh.44.2022.02.17.15.20.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Feb 2022 15:20:30 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=Wkc2oSrj; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 26B2064F2; Thu, 17 Feb 2022 15:06:48 -0800 (PST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243741AbiBQRd4 (ORCPT + 99 others); Thu, 17 Feb 2022 12:33:56 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:46190 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232550AbiBQRdz (ORCPT ); Thu, 17 Feb 2022 12:33:55 -0500 Received: from mail-pf1-x435.google.com (mail-pf1-x435.google.com [IPv6:2607:f8b0:4864:20::435]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5AE1316040B for ; Thu, 17 Feb 2022 09:33:41 -0800 (PST) Received: by mail-pf1-x435.google.com with SMTP id p8so253599pfh.8 for ; Thu, 17 Feb 2022 09:33:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=message-id:date:mime-version:user-agent:content-language:to:cc :references:from:subject:in-reply-to:content-transfer-encoding; bh=1+wuSPGqInJTXF1WSMnW5S9JPVd8nQUvsA9MXOgLl5Y=; b=Wkc2oSrjSh4TA0XpeyKv0Bm4R4h/s30wRvOf8CT4gKf6jVrd4pDNFrIVpJM4DeIXrb ZLfuIXPRjPP3BnxrFR95/39P48/R4v+Od/x83dS9YbbBmyRaKZJoWb5DagXVHMsVAF7z 8A27B+FqTyQTJuxibjSTuA+WKhsu6p6Ysx6hdyAEe0iIYcWiDR0iHJ1081+iPFmvsEdA OKDnPIfvEyumyRef/6hPzkS3YsSGEn6gWPGzjPO/upatf1OMOcyJpVCT0Nyze7Utpzux G5TRfWhBqD1sOgTGRslQEVt9nRyKsk3J5w6sTBWi++cg3f55nEelbLonP9+4B708D6aI +GOw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent :content-language:to:cc:references:from:subject:in-reply-to :content-transfer-encoding; bh=1+wuSPGqInJTXF1WSMnW5S9JPVd8nQUvsA9MXOgLl5Y=; b=sZ5ScrpjWnUh/7bf/xP9G+i6xWzmL7sf46sZRxEM4PK1umHweH5Won+SMtgs2F2Dkb rYzU+nVEz/MurfAGx17CBpj21UZyTrmGqwqzICwDdBDB/1UGMJp8eE5S7Qq04QumbNTA Bq1F+kQwpvLl9H3e/7nVAG6pY8BpXt/PKeFfNJiDvNvcx50aMXm7cFX9INN0MAHRn/N8 RmaSP+bLw/ryswMeZlTgMzF96dGJ4o5KnTyxXsk0Le7Uz8BQTDosX3O3ExxwqHoth8Wv rYc9VCuvNzbcJ8ssyuDMk789pjR4BWfGrb9/A32CWwdOGAPXBb4lTVFk5qV6C4BTMXh1 ecQg== X-Gm-Message-State: AOAM533RcX5LoQzu8qeIbU0adHBFQFJzwKKq2sFshbH4t4ay4RFsJPVn 1c0iymhMmvBBzbFK58Gmb5xoWw== X-Received: by 2002:a63:2ac4:0:b0:373:6cfb:fc77 with SMTP id q187-20020a632ac4000000b003736cfbfc77mr3231847pgq.529.1645119220927; Thu, 17 Feb 2022 09:33:40 -0800 (PST) Received: from [192.168.254.17] ([50.39.160.154]) by smtp.gmail.com with ESMTPSA id q4sm8854188pgn.42.2022.02.17.09.33.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Feb 2022 09:33:40 -0800 (PST) Message-ID: Date: Thu, 17 Feb 2022 09:33:39 -0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Content-Language: en-US To: Peter Zijlstra , Linus Torvalds Cc: Borislav Petkov , x86-ml , lkml , zhangqiao22@huawei.com, tj@kernel.org, dietmar.eggemann@arm.com References: From: Tadeusz Struk Subject: Re: [PATCH] sched: Fix yet more sched_fork() races In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,RDNS_NONE,SPF_HELO_NONE, T_SCC_BODY_TEXT_LINE autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2/17/22 00:51, Peter Zijlstra wrote: > On Mon, Feb 14, 2022 at 10:16:57AM +0100, Peter Zijlstra wrote: >> Zhang, Tadeusz, TJ, how does this look? > > *sigh* I was hoping for some Tested-by, since I've no idea how to > operate this cgroup stuff properly. > > Anyway, full patch below. I'll go stick it in sched/urgent. Just tested it on 5.17.0-rc4 and it looks ok. Tested-by: Tadeusz Struk -- Thanks, Tadeusz