From nobody Fri Jan 2 20:48:48 2026 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 A109CE95A86 for ; Sun, 8 Oct 2023 02:16:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344307AbjJHCQC (ORCPT ); Sat, 7 Oct 2023 22:16:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43682 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344249AbjJHCQB (ORCPT ); Sat, 7 Oct 2023 22:16:01 -0400 Received: from out-208.mta0.migadu.com (out-208.mta0.migadu.com [91.218.175.208]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 85A2BB9 for ; Sat, 7 Oct 2023 19:15:57 -0700 (PDT) X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1696731355; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=GKh09dwIHSZXs0/OglyxLBStxYXOe4hyzNoRqfAtIFw=; b=QcXbAuy/yj6jmA70nZBJhmO0lKL0Meriu/+PCHme6D1DuYMx8m3bKfWL4vwuzP0YmsXgyf FkoWDVTMgJ8n2NNbvMvKL8injeKHt1+xFI9JiR8a/QmH9HAW6qOS1DhBPN79Mho+cMsn+L Zf1+iqqF8qpZJQrFwJ5tN49NMXp9OtI= From: Yajun Deng To: mingo@redhat.com, peterz@infradead.org, juri.lelli@redhat.com, vincent.guittot@linaro.org, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, bristot@redhat.com, vschneid@redhat.com Cc: linux-kernel@vger.kernel.org, Yajun Deng Subject: [PATCH] sched/rt: case sysctl_sched_rt_period to integer Date: Sun, 8 Oct 2023 10:15:38 +0800 Message-Id: <20231008021538.3063250-1-yajun.deng@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Migadu-Flow: FLOW_OUT Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" proc_dointvec_minmax is for integer, but sysctl_sched_rt_period is an unsigned integer. And sysctl_sched_rt_period takes values from 1 to INT_MAX, so sysctl_sched_rt_period doesn't have to be an unsigned integer. Case sysctl_sched_rt_period to integer. Also, change the maximum value of sysctl_sched_rt_runtime to sysctl_sched_rt_period. Signed-off-by: Yajun Deng --- kernel/sched/rt.c | 6 +++--- kernel/sched/sched.h | 2 +- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 88fc98601413..76d82a096e03 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -16,7 +16,7 @@ struct rt_bandwidth def_rt_bandwidth; * period over which we measure -rt task CPU usage in us. * default: 1s */ -unsigned int sysctl_sched_rt_period =3D 1000000; +int sysctl_sched_rt_period =3D 1000000; =20 /* * part of the period that we allow rt tasks to run in us. @@ -34,7 +34,7 @@ static struct ctl_table sched_rt_sysctls[] =3D { { .procname =3D "sched_rt_period_us", .data =3D &sysctl_sched_rt_period, - .maxlen =3D sizeof(unsigned int), + .maxlen =3D sizeof(int), .mode =3D 0644, .proc_handler =3D sched_rt_handler, .extra1 =3D SYSCTL_ONE, @@ -47,7 +47,7 @@ static struct ctl_table sched_rt_sysctls[] =3D { .mode =3D 0644, .proc_handler =3D sched_rt_handler, .extra1 =3D SYSCTL_NEG_ONE, - .extra2 =3D SYSCTL_INT_MAX, + .extra2 =3D (void *)&sysctl_sched_rt_period, }, { .procname =3D "sched_rr_timeslice_ms", diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 649eb9ec0657..515eb4cffd5e 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -105,7 +105,7 @@ extern long calc_load_fold_active(struct rq *this_rq, l= ong adjust); =20 extern void call_trace_sched_update_nr_running(struct rq *rq, int count); =20 -extern unsigned int sysctl_sched_rt_period; +extern int sysctl_sched_rt_period; extern int sysctl_sched_rt_runtime; extern int sched_rr_timeslice; =20 --=20 2.25.1