Received: by 2002:a05:6358:45e:b0:b5:b6eb:e1f9 with SMTP id 30csp2769496rwe; Sun, 28 Aug 2022 22:37:47 -0700 (PDT) X-Google-Smtp-Source: AA6agR7xaA8+OL6vlJyuMIxz9KhRV09OaCX4r5lkoSTH0dMAo5QVcmUHBHbJVnR424dA4ob2Yj++ X-Received: by 2002:a05:6402:2816:b0:434:ed38:16f3 with SMTP id h22-20020a056402281600b00434ed3816f3mr15073721ede.116.1661751467116; Sun, 28 Aug 2022 22:37:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1661751467; cv=none; d=google.com; s=arc-20160816; b=ogUcthKPKQhLUc0OWHJwX7CTF+arIzXFd5mGER1oVKcF08lNWcOkinR3y2WY9VRBlq QmL+Li6DjYcPgf0Q7zNoKQ33tJ73ufbUXt/ombB+4pw4vOHZe/log7xrx4UpDPCFrmr8 B4hzTptSa2h7mogdjA78Nte1yvPkSs81abjsYGocoVE639ANdrR4UULXd23vHmGtmJAV oO2C1jkdYHJNC42GhEGaNAqYrEQitMMT7R3e8CaU3O0bdaz94TVNu/NiD131/HQWyg3j 71fAMSnsFcTaWrqcrS0+FeHUK1e8XiFBvgoL4cGoEx04H8v5ddMWUNHzNCcGvqbaNNQe leBg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=MEOxEOT9ztsDNjDrVt5QFWD/hcd0m/UInam7Q38BBEs=; b=o4s2XLF3Hv3vPAYPHI/GcrPXPMBoGk7CDA4QQ1sAP4kcTrz8ERenM0I5BBx29T0/hA fn+r2CtZlYcQwqfhBn4n4k7+fRLTQnYKLNJXbZs/eQ2qNRppGQD4UQIFv0qKHpztLFW4 7w/x5oTcE4xDUzOmrw8XpzXW5bW7m4JBJdm7r5rfnNe0WugJT79Nh1oIk4EWE9scXzvA AliZwJXpL8mV5zb4Q/3EPMgZpoXdpCMzmxLmHsvJBqVAd61qD6mtzGQum08plSS7udnC FJ21g8cZJi8FkkNBHX4tcl5LglmXX14Akc2PnXmSW5FD83T570OTfJwvz8FH8k3e1cm3 GmxA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=lechmRmG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id eh23-20020a0564020f9700b00447a70e89e2si5799129edb.195.2022.08.28.22.37.19; Sun, 28 Aug 2022 22:37:47 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=lechmRmG; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229550AbiH2F1K (ORCPT + 99 others); Mon, 29 Aug 2022 01:27:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52910 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229446AbiH2F1J (ORCPT ); Mon, 29 Aug 2022 01:27:09 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 44EAF1261D; Sun, 28 Aug 2022 22:27:07 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id CF0FA6101C; Mon, 29 Aug 2022 05:27:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12AAAC433D6; Mon, 29 Aug 2022 05:27:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1661750826; bh=MEOxEOT9ztsDNjDrVt5QFWD/hcd0m/UInam7Q38BBEs=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lechmRmGrGq262+cnOTNYLd/uUO6SzkMIje/6aEkheUMqoMk5UQz/4pMs5JEzGsHu M2jaSRtcVH0EEN+rE/13i8Tt5P7DmEkVMEdWRa9pdTVSSQsRct9L3uaBU3Oi00wGT6 Zd7m5F3EZjFIhqzW4GkvTFgkMePGe3QYiUktda20= Date: Mon, 29 Aug 2022 07:27:20 +0200 From: Greg KH To: Li Hua Cc: peterz@infradead.org, bristot@redhat.com, bsegall@google.com, dietmar.eggemann@arm.com, juri.lelli@redhat.com, linux-kernel@vger.kernel.org, mgorman@suse.de, mingo@redhat.com, rostedt@goodmis.org, stable@vger.kernel.org, vincent.guittot@linaro.org, vschneid@redhat.com Subject: Re: [PATCH -next] sched/cputime: Fix the bug of reading time backward from /proc/stat Message-ID: References: <20220817004445.43216-1-hucool.lihua@huawei.com> <20220829155724.53581-1-hucool.lihua@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220829155724.53581-1-hucool.lihua@huawei.com> X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham 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 Mon, Aug 29, 2022 at 11:57:24PM +0800, Li Hua wrote: > ping... There is no context here at all for what anyone should do :(