Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754046AbcL3LeI (ORCPT ); Fri, 30 Dec 2016 06:34:08 -0500 Received: from mail-wj0-f196.google.com ([209.85.210.196]:35408 "EHLO mail-wj0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754021AbcL3LeF (ORCPT ); Fri, 30 Dec 2016 06:34:05 -0500 From: Luca Abeni X-Google-Original-From: Luca Abeni To: linux-kernel@vger.kernel.org Cc: Peter Zijlstra , Ingo Molnar , Juri Lelli , Claudio Scordino , Steven Rostedt , Tommaso Cucinotta , Daniel Bristot de Oliveira , Luca Abeni Subject: [RFC v4 6/6] sched/deadline: make GRUB a task's flag Date: Fri, 30 Dec 2016 12:33:11 +0100 Message-Id: <1483097591-3871-7-git-send-email-lucabe72@gmail.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1483097591-3871-1-git-send-email-lucabe72@gmail.com> References: <1483097591-3871-1-git-send-email-lucabe72@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1441 Lines: 50 From: Luca Abeni Signed-off-by: Luca Abeni --- include/uapi/linux/sched.h | 1 + kernel/sched/core.c | 3 ++- kernel/sched/deadline.c | 3 ++- 3 files changed, 5 insertions(+), 2 deletions(-) diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h index 5f0fe01..e2a6c7b 100644 --- a/include/uapi/linux/sched.h +++ b/include/uapi/linux/sched.h @@ -47,5 +47,6 @@ * For the sched_{set,get}attr() calls */ #define SCHED_FLAG_RESET_ON_FORK 0x01 +#define SCHED_FLAG_RECLAIM 0x02 #endif /* _UAPI_LINUX_SCHED_H */ diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 4010af7..af9c882 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4089,7 +4089,8 @@ static int __sched_setscheduler(struct task_struct *p, return -EINVAL; } - if (attr->sched_flags & ~(SCHED_FLAG_RESET_ON_FORK)) + if (attr->sched_flags & + ~(SCHED_FLAG_RESET_ON_FORK | SCHED_FLAG_RECLAIM)) return -EINVAL; /* diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 7585dfb..93ff400 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -823,7 +823,8 @@ static void update_curr_dl(struct rq *rq) sched_rt_avg_update(rq, delta_exec); - delta_exec = grub_reclaim(delta_exec, rq); + if (unlikely(dl_se->flags & SCHED_FLAG_RECLAIM)) + delta_exec = grub_reclaim(delta_exec, rq); dl_se->runtime -= delta_exec; throttle: -- 2.7.4