Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932527AbcDAPTS (ORCPT ); Fri, 1 Apr 2016 11:19:18 -0400 Received: from mail-wm0-f47.google.com ([74.125.82.47]:33308 "EHLO mail-wm0-f47.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932378AbcDAPS1 (ORCPT ); Fri, 1 Apr 2016 11:18:27 -0400 From: Luca Abeni To: linux-kernel@vger.kernel.org Cc: Peter Zijlstra , Ingo Molnar , Juri Lelli , Luca Abeni Subject: [RFC v2 6/7] Make GRUB a task's flag Date: Fri, 1 Apr 2016 17:12:32 +0200 Message-Id: <1459523553-29089-7-git-send-email-luca.abeni@unitn.it> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1459523553-29089-1-git-send-email-luca.abeni@unitn.it> References: <1459523553-29089-1-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: 1355 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 cc89dde..9279562 100644 --- a/include/uapi/linux/sched.h +++ b/include/uapi/linux/sched.h @@ -48,5 +48,6 @@ * 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 4158d1f..3224132 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3822,7 +3822,8 @@ recheck: 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 647d779..b56f76f 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -834,7 +834,8 @@ 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: -- 2.5.0