Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S941088AbcJXOHa (ORCPT ); Mon, 24 Oct 2016 10:07:30 -0400 Received: from mail-wm0-f67.google.com ([74.125.82.67]:35862 "EHLO mail-wm0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S941053AbcJXOH1 (ORCPT ); Mon, 24 Oct 2016 10:07:27 -0400 From: Luca Abeni To: linux-kernel@vger.kernel.org Cc: Peter Zijlstra , Ingo Molnar , Juri Lelli , Claudio Scordino , Steven Rostedt , Luca Abeni Subject: [RFC v3 6/6] Make GRUB a task's flag Date: Mon, 24 Oct 2016 16:06:38 +0200 Message-Id: <1477317998-7487-7-git-send-email-luca.abeni@unitn.it> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1477317998-7487-1-git-send-email-luca.abeni@unitn.it> References: <1477317998-7487-1-git-send-email-luca.abeni@unitn.it> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1401 Lines: 48 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 6706b5f..421a315 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4087,7 +4087,8 @@ 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 cab76e8..8c4c0e0 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -830,7 +830,8 @@ 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