From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753461AbdKXLMn (ORCPT ); Fri, 24 Nov 2017 06:12:43 -0500 Received: from foss.arm.com ([217.140.101.70]:42382 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753239AbdKXLMl (ORCPT ); Fri, 24 Nov 2017 06:12:41 -0500 From: Alessio Balsini To: linux-kernel@vger.kernel.org Cc: Ingo Molnar , Peter Zijlstra , Juri Lelli , Daniel Bristot de Oliveira , Luca Abeni , Tommaso Cucinotta Subject: [PATCH] sched/deadline: comment update for constrained deadline tasks explanation Date: Fri, 24 Nov 2017 11:12:21 +0000 Message-Id: <1511521941-26952-1-git-send-email-alessio.balsini@arm.com> X-Mailer: git-send-email 2.7.4 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Remove the adjective "relative" associated to the period of a periodic task, since the period is an absolute value. Rephrased the comment with the aim of making it even more clear. Signed-off-by: Alessio Balsini Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Juri Lelli Cc: Daniel Bristot de Oliveira Cc: Luca Abeni Cc: Tommaso Cucinotta Cc: linux-kernel@vger.kernel.org --- kernel/sched/deadline.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index f349f7e..902b2e0 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -770,9 +770,9 @@ update_dl_revised_wakeup(struct sched_dl_entity *dl_se, struct rq *rq) } /* - * Regarding the deadline, a task with implicit deadline has a relative - * deadline == relative period. A task with constrained deadline has a - * relative deadline <= relative period. + * Regarding periodic real-time tasks, a constrained deadline task has the + * relative deadline <= period. An implicit deadline task is a particular case + * for which the relative deadline == period. * * We support constrained deadline tasks. However, there are some restrictions * applied only for tasks which do not have an implicit deadline. See -- 2.7.4