From nobody Fri Dec 19 15:50:16 2025 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 076BFE7D0AD for ; Thu, 21 Sep 2023 21:13:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232482AbjIUVNk (ORCPT ); Thu, 21 Sep 2023 17:13:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232424AbjIUVNJ (ORCPT ); Thu, 21 Sep 2023 17:13:09 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7B5297680; Thu, 21 Sep 2023 10:10:10 -0700 (PDT) Date: Thu, 21 Sep 2023 06:33:22 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1695278003; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FA7A855TbBCr1Ls7xPmjU7HiQJ8bxXU32yUpWueygxg=; b=HJ9z45cqOlsUxdGTO+tqJp+C4Sh8Y5vW+AvS1lN3ZiEv5RhCKlXy9YuKjaV4MVRo0OH523 7aZUd2O++pooldtAY8OOnHbbNh2rTeBlkSBEaiNAR6cJcYQV4lfg7QdzA3wT7+eCKDW2YD E3igFaPv0yI9xg4E/gbtepoFPFKT+Yu4ySb2Lu8PkBYfhfxq+WQ7CPUgbk0+LLhWWBcjhO MuYol+Z+a4SGD4HNX6wXVkkp9nPxjZbzfIqKOihk7dMlMQG2gZBvQjgR2ztcU6M1EEE1Ay eoOHX8Ud1eAD4aroN4IW+zU6SPQynRHF/zaZtD8rTYApjHaKJK6cSlnPw+03Ow== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1695278003; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=FA7A855TbBCr1Ls7xPmjU7HiQJ8bxXU32yUpWueygxg=; b=sDuzeD3W5dzENKIoPiQD0aLGp3Wai+BRXUki+elLaLiP4NGo3ngWR4KLjnkPM6xOGRJlSg njQlqbuqxRlWVxCA== From: "tip-bot2 for Sebastian Andrzej Siewior" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: sched/core] sched/debug: Remove the /proc/sys/kernel/sched_child_runs_first sysctl Cc: Sebastian Andrzej Siewior , Ingo Molnar , x86@kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <20230920130025.412071-2-bigeasy@linutronix.de> References: <20230920130025.412071-2-bigeasy@linutronix.de> MIME-Version: 1.0 Message-ID: <169527800257.27769.9797272865607860084.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the sched/core branch of tip: Commit-ID: 17e7170645e34c519443ba63895264bbdee7beee Gitweb: https://git.kernel.org/tip/17e7170645e34c519443ba63895264bbd= ee7beee Author: Sebastian Andrzej Siewior AuthorDate: Wed, 20 Sep 2023 15:00:24 +02:00 Committer: Ingo Molnar CommitterDate: Thu, 21 Sep 2023 08:30:18 +02:00 sched/debug: Remove the /proc/sys/kernel/sched_child_runs_first sysctl The /proc/sys/kernel/sched_child_runs_first knob is no longer connected sin= ce: 5e963f2bd4654 ("sched/fair: Commit to EEVDF") Remove it. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/20230920130025.412071-2-bigeasy@linutronix.= de --- kernel/sched/debug.c | 1 - kernel/sched/fair.c | 13 ------------- kernel/sched/sched.h | 2 -- 3 files changed, 16 deletions(-) diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c index 4c3d0d9..132dfd1 100644 --- a/kernel/sched/debug.c +++ b/kernel/sched/debug.c @@ -864,7 +864,6 @@ static void sched_debug_header(struct seq_file *m) #define PN(x) \ SEQ_printf(m, " .%-40s: %Ld.%06ld\n", #x, SPLIT_NS(x)) PN(sysctl_sched_base_slice); - P(sysctl_sched_child_runs_first); P(sysctl_sched_features); #undef PN #undef P diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index fcf0c5b..7572000 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -78,12 +78,6 @@ unsigned int sysctl_sched_tunable_scaling =3D SCHED_TUNA= BLESCALING_LOG; unsigned int sysctl_sched_base_slice =3D 750000ULL; static unsigned int normalized_sysctl_sched_base_slice =3D 750000ULL; =20 -/* - * After fork, child runs first. If set to 0 (default) then - * parent will (try to) run first. - */ -unsigned int sysctl_sched_child_runs_first __read_mostly; - const_debug unsigned int sysctl_sched_migration_cost =3D 500000UL; =20 int sched_thermal_decay_shift; @@ -145,13 +139,6 @@ static unsigned int sysctl_numa_balancing_promote_rate= _limit =3D 65536; =20 #ifdef CONFIG_SYSCTL static struct ctl_table sched_fair_sysctls[] =3D { - { - .procname =3D "sched_child_runs_first", - .data =3D &sysctl_sched_child_runs_first, - .maxlen =3D sizeof(unsigned int), - .mode =3D 0644, - .proc_handler =3D proc_dointvec, - }, #ifdef CONFIG_CFS_BANDWIDTH { .procname =3D "sched_cfs_bandwidth_slice_us", diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 7e070dc..9260120 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -100,8 +100,6 @@ extern __read_mostly int scheduler_running; extern unsigned long calc_load_update; extern atomic_long_t calc_load_tasks; =20 -extern unsigned int sysctl_sched_child_runs_first; - extern void calc_global_load_tick(struct rq *this_rq); extern long calc_load_fold_active(struct rq *this_rq, long adjust);