From patchwork Tue Feb 15 11:45:57 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhen Ni X-Patchwork-Id: 12746965 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 F1475C433F5 for ; Tue, 15 Feb 2022 11:46:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237375AbiBOLqx (ORCPT ); Tue, 15 Feb 2022 06:46:53 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:42660 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237368AbiBOLqv (ORCPT ); Tue, 15 Feb 2022 06:46:51 -0500 X-Greylist: delayed 22995 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Tue, 15 Feb 2022 03:46:41 PST Received: from smtpbgsg2.qq.com (smtpbgsg2.qq.com [54.254.200.128]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4AC6C654B2 for ; Tue, 15 Feb 2022 03:46:40 -0800 (PST) X-QQ-mid: bizesmtp42t1644925582traacy2x Received: from localhost.localdomain (unknown [58.240.82.166]) by bizesmtp.qq.com (ESMTP) with id ; Tue, 15 Feb 2022 19:46:19 +0800 (CST) X-QQ-SSF: 0140000000200030C000B00A0000000 X-QQ-FEAT: NFbnPP6/4uIjq7baGubDdF8lAVSJ0kqlgzt/KiV61aU24LUBUVE0bomkY+7nl z5Wy7xiJTTDN/3RzpX1dEwM9csZ6mctawBbO/zg/jQ+vT+rU4mHPVVLVx90ytVTJc87CEzu BZQ8xxCRbpKoeGQBlKtSPtkjzuI9rhjXCXqOqoldUo0yuirtL1grrw9bZhAuZWLaFZ7vm0V /gjlG3mOppSGp+ztndl14OpFT1fEaG1hhjC2GovpPVZCjyLBEVnKiUGeV/8eGW1nTFyamRE 4rkANqxarjXpIb7llYlBZkoH/OiBNb3AypK3GIGnhUN6NJHh7zGL54MQRGaqcduCPvkjkzJ qPfLTFp+uitbp+ZaMK7gnagj8HIj99XWcT0uqOnqnvktS/SrQyo5+/nc3WOrQ== X-QQ-GoodBg: 2 From: Zhen Ni To: mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, mcgrof@kernel.org, keescook@chromium.org Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, Zhen Ni Subject: [PATCH v3 1/8] sched: Move child_runs_first sysctls to fair.c Date: Tue, 15 Feb 2022 19:45:57 +0800 Message-Id: <20220215114604.25772-2-nizhen@uniontech.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20220215114604.25772-1-nizhen@uniontech.com> References: <20220215114604.25772-1-nizhen@uniontech.com> MIME-Version: 1.0 X-QQ-SENDSIZE: 520 Feedback-ID: bizesmtp:uniontech.com:qybgforeign:qybgforeign1 X-QQ-Bgrelay: 1 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org move child_runs_first sysctls to fair.c and use the new register_sysctl_init() to register the sysctl interface. Signed-off-by: Zhen Ni --- include/linux/sched/sysctl.h | 2 -- kernel/sched/fair.c | 19 +++++++++++++++++++ kernel/sched/sched.h | 2 ++ kernel/sysctl.c | 7 ------- 4 files changed, 21 insertions(+), 9 deletions(-) diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h index 3f2b70f8d32c..5490ba24783a 100644 --- a/include/linux/sched/sysctl.h +++ b/include/linux/sched/sysctl.h @@ -14,8 +14,6 @@ extern unsigned long sysctl_hung_task_timeout_secs; enum { sysctl_hung_task_timeout_secs = 0 }; #endif -extern unsigned int sysctl_sched_child_runs_first; - enum sched_tunable_scaling { SCHED_TUNABLESCALING_NONE, SCHED_TUNABLESCALING_LOG, diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 8fc35fd779f8..4ac1bfe8ca4f 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -77,6 +77,25 @@ static unsigned int sched_nr_latency = 8; * parent will (try to) run first. */ unsigned int sysctl_sched_child_runs_first __read_mostly; +#ifdef CONFIG_SYSCTL +static struct ctl_table sched_child_runs_first_sysctls[] = { + { + .procname = "sched_child_runs_first", + .data = &sysctl_sched_child_runs_first, + .maxlen = sizeof(unsigned int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, + {} +}; + +static int __init sched_child_runs_first_sysctl_init(void) +{ + register_sysctl_init("kernel", sched_child_runs_first_sysctls); + return 0; +} +late_initcall(sched_child_runs_first_sysctl_init); +#endif /* * SCHED_OTHER wake-up granularity. diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 9b33ba9c3c42..27465635c774 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -96,6 +96,8 @@ extern __read_mostly int scheduler_running; extern unsigned long calc_load_update; extern atomic_long_t calc_load_tasks; +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); diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 1cb7ca68cd4e..24a99b5b7da8 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -1652,13 +1652,6 @@ int proc_do_static_key(struct ctl_table *table, int write, } static struct ctl_table kern_table[] = { - { - .procname = "sched_child_runs_first", - .data = &sysctl_sched_child_runs_first, - .maxlen = sizeof(unsigned int), - .mode = 0644, - .proc_handler = proc_dointvec, - }, #ifdef CONFIG_SCHEDSTATS { .procname = "sched_schedstats",