Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933939AbdCWTzP (ORCPT ); Thu, 23 Mar 2017 15:55:15 -0400 Received: from mail.santannapisa.it ([193.205.80.99]:26882 "EHLO mail.santannapisa.it" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1755800AbdCWTxH (ORCPT ); Thu, 23 Mar 2017 15:53:07 -0400 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 , Joel Fernandes , Mathieu Poirier , Luca Abeni Subject: [RFC v5 6/9] sched/deadline: make GRUB a task's flag Date: Fri, 24 Mar 2017 04:52:59 +0100 Message-Id: <1490327582-4376-7-git-send-email-luca.abeni@santannapisa.it> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1490327582-4376-1-git-send-email-luca.abeni@santannapisa.it> References: <1490327582-4376-1-git-send-email-luca.abeni@santannapisa.it> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1514 Lines: 51 From: Luca Abeni Signed-off-by: Luca Abeni Tested-by: Daniel Bristot de Oliveira --- 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 efa88eb..88e108b 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -4140,7 +4140,8 @@ 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 e964051..1951379 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -921,7 +921,8 @@ 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