From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756195AbdJJLFA (ORCPT ); Tue, 10 Oct 2017 07:05:00 -0400 Received: from terminus.zytor.com ([65.50.211.136]:53599 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751872AbdJJLE6 (ORCPT ); Tue, 10 Oct 2017 07:04:58 -0400 Date: Tue, 10 Oct 2017 04:01:27 -0700 From: tip-bot for Sebastian Andrzej Siewior Message-ID: Cc: hpa@zytor.com, torvalds@linux-foundation.org, axboe@fb.com, efault@gmx.de, tglx@linutronix.de, linux-kernel@vger.kernel.org, peterz@infradead.org, mingo@kernel.org, bigeasy@linutronix.de Reply-To: peterz@infradead.org, mingo@kernel.org, bigeasy@linutronix.de, linux-kernel@vger.kernel.org, tglx@linutronix.de, torvalds@linux-foundation.org, hpa@zytor.com, efault@gmx.de, axboe@fb.com In-Reply-To: <20171004154901.26904-1-bigeasy@linutronix.de> References: <20171004154901.26904-1-bigeasy@linutronix.de> To: linux-tip-commits@vger.kernel.org Subject: [tip:sched/core] sched/rt: Add a helper to test for a RT task Git-Commit-ID: ff0d4a9dc16b1f4c954f6407c233ab848bdfe8b0 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: ff0d4a9dc16b1f4c954f6407c233ab848bdfe8b0 Gitweb: https://git.kernel.org/tip/ff0d4a9dc16b1f4c954f6407c233ab848bdfe8b0 Author: Sebastian Andrzej Siewior AuthorDate: Wed, 4 Oct 2017 17:49:00 +0200 Committer: Ingo Molnar CommitDate: Tue, 10 Oct 2017 11:45:38 +0200 sched/rt: Add a helper to test for a RT task This helper returns true if a task has elevated priority which is true for RT tasks (SCHED_RR and SCHED_FIFO) and also for SCHED_DEADLINE. A task which runs at RT priority due to PI-boosting is not considered as one with elevated priority. Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Peter Zijlstra (Intel) Cc: Jens Axboe Cc: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20171004154901.26904-1-bigeasy@linutronix.de Signed-off-by: Ingo Molnar --- include/linux/sched/rt.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/linux/sched/rt.h b/include/linux/sched/rt.h index f93329a..1330016 100644 --- a/include/linux/sched/rt.h +++ b/include/linux/sched/rt.h @@ -17,6 +17,17 @@ static inline int rt_task(struct task_struct *p) return rt_prio(p->prio); } +static inline bool task_is_realtime(struct task_struct *tsk) +{ + int policy = tsk->policy; + + if (policy == SCHED_FIFO || policy == SCHED_RR) + return true; + if (policy == SCHED_DEADLINE) + return true; + return false; +} + #ifdef CONFIG_RT_MUTEXES /* * Must hold either p->pi_lock or task_rq(p)->lock.