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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4F932CCA482 for ; Tue, 7 Jun 2022 21:32:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1378637AbiFGVcb (ORCPT ); Tue, 7 Jun 2022 17:32:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48884 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379424AbiFGVaE (ORCPT ); Tue, 7 Jun 2022 17:30:04 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8B558152BAE; Tue, 7 Jun 2022 12:02:34 -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 1C336617F7; Tue, 7 Jun 2022 19:02:34 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23860C34115; Tue, 7 Jun 2022 19:02:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1654628553; bh=DazYS8QUkKWeRD/pr9WvSxOGA3byYSt3OMAKPUQg4FQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=axS2ZdNLH6dWvkP4wRR8iMGW+cv5PmbxshRzpnlfbG9vsVXlsQ8P33szb1VB+Ex1U LEGun6hK+wynQhRdz8GFSjSZptEGaHNLTKjfRGLxMleXS0G7rpLbyJzs6a0fyvd4yH eaVZkqvpkXCmsM2+26WnjP+TIVxeK6LEiyGUnChU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chengming Zhou , "Peter Zijlstra (Intel)" , Ben Segall , Vincent Guittot , Sasha Levin Subject: [PATCH 5.18 331/879] sched/fair: Fix cfs_rq_clock_pelt() for throttled cfs_rq Date: Tue, 7 Jun 2022 18:57:29 +0200 Message-Id: <20220607165012.464534941@linuxfoundation.org> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220607165002.659942637@linuxfoundation.org> References: <20220607165002.659942637@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Chengming Zhou [ Upstream commit 64eaf50731ac0a8c76ce2fedd50ef6652aabc5ff ] Since commit 23127296889f ("sched/fair: Update scale invariance of PELT") change to use rq_clock_pelt() instead of rq_clock_task(), we should also use rq_clock_pelt() for throttled_clock_task_time and throttled_clock_task accounting to get correct cfs_rq_clock_pelt() of throttled cfs_rq. And rename throttled_clock_task(_time) to be clock_pelt rather than clock_task. Fixes: 23127296889f ("sched/fair: Update scale invariance of PELT") Signed-off-by: Chengming Zhou Signed-off-by: Peter Zijlstra (Intel) Reviewed-by: Ben Segall Reviewed-by: Vincent Guittot Link: https://lore.kernel.org/r/20220408115309.81603-1-zhouchengming@bytedance.com Signed-off-by: Sasha Levin --- kernel/sched/fair.c | 8 ++++---- kernel/sched/pelt.h | 4 ++-- kernel/sched/sched.h | 4 ++-- 3 files changed, 8 insertions(+), 8 deletions(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index a68482d66535..cc8daa3dcc8b 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4846,8 +4846,8 @@ static int tg_unthrottle_up(struct task_group *tg, void *data) cfs_rq->throttle_count--; if (!cfs_rq->throttle_count) { - cfs_rq->throttled_clock_task_time += rq_clock_task(rq) - - cfs_rq->throttled_clock_task; + cfs_rq->throttled_clock_pelt_time += rq_clock_pelt(rq) - + cfs_rq->throttled_clock_pelt; /* Add cfs_rq with load or one or more already running entities to the list */ if (!cfs_rq_is_decayed(cfs_rq) || cfs_rq->nr_running) @@ -4864,7 +4864,7 @@ static int tg_throttle_down(struct task_group *tg, void *data) /* group is entering throttled state, stop time */ if (!cfs_rq->throttle_count) { - cfs_rq->throttled_clock_task = rq_clock_task(rq); + cfs_rq->throttled_clock_pelt = rq_clock_pelt(rq); list_del_leaf_cfs_rq(cfs_rq); } cfs_rq->throttle_count++; @@ -5308,7 +5308,7 @@ static void sync_throttle(struct task_group *tg, int cpu) pcfs_rq = tg->parent->cfs_rq[cpu]; cfs_rq->throttle_count = pcfs_rq->throttle_count; - cfs_rq->throttled_clock_task = rq_clock_task(cpu_rq(cpu)); + cfs_rq->throttled_clock_pelt = rq_clock_pelt(cpu_rq(cpu)); } /* conditionally throttle active cfs_rq's from put_prev_entity() */ diff --git a/kernel/sched/pelt.h b/kernel/sched/pelt.h index c336f5f481bc..4ff2ed4f8fa1 100644 --- a/kernel/sched/pelt.h +++ b/kernel/sched/pelt.h @@ -145,9 +145,9 @@ static inline u64 rq_clock_pelt(struct rq *rq) static inline u64 cfs_rq_clock_pelt(struct cfs_rq *cfs_rq) { if (unlikely(cfs_rq->throttle_count)) - return cfs_rq->throttled_clock_task - cfs_rq->throttled_clock_task_time; + return cfs_rq->throttled_clock_pelt - cfs_rq->throttled_clock_pelt_time; - return rq_clock_pelt(rq_of(cfs_rq)) - cfs_rq->throttled_clock_task_time; + return rq_clock_pelt(rq_of(cfs_rq)) - cfs_rq->throttled_clock_pelt_time; } #else static inline u64 cfs_rq_clock_pelt(struct cfs_rq *cfs_rq) diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 2133aea22086..0d2b6b758f32 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -603,8 +603,8 @@ struct cfs_rq { s64 runtime_remaining; u64 throttled_clock; - u64 throttled_clock_task; - u64 throttled_clock_task_time; + u64 throttled_clock_pelt; + u64 throttled_clock_pelt_time; int throttled; int throttle_count; struct list_head throttled_list; -- 2.35.1