From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755648AbcANP0D (ORCPT ); Thu, 14 Jan 2016 10:26:03 -0500 Received: from mail-wm0-f43.google.com ([74.125.82.43]:36859 "EHLO mail-wm0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755590AbcANPZv (ORCPT ); Thu, 14 Jan 2016 10:25:51 -0500 From: Luca Abeni To: linux-kernel@vger.kernel.org Cc: Peter Zijlstra , Ingo Molnar , Juri Lelli , Luca Abeni Subject: [RFC 7/8] Make GRUB a task's flag Date: Thu, 14 Jan 2016 16:24:52 +0100 Message-Id: <1452785094-3086-8-git-send-email-luca.abeni@unitn.it> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1452785094-3086-1-git-send-email-luca.abeni@unitn.it> References: <1452785094-3086-1-git-send-email-luca.abeni@unitn.it> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --- include/uapi/linux/sched.h | 1 + kernel/sched/core.c | 2 +- kernel/sched/deadline.c | 4 +++- 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 7ca17e4c..1a384c7 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3911,7 +3911,7 @@ 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 4795d7f..712cc6d 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -864,7 +864,9 @@ static void update_curr_dl(struct rq *rq) sched_rt_avg_update(rq, delta_exec); - delta_exec = grub_reclaim(delta_exec, rq, curr->dl.dl_bw); + if (unlikely(dl_se->flags & SCHED_FLAG_RECLAIM)) { + delta_exec = grub_reclaim(delta_exec, rq, curr->dl.dl_bw); + } dl_se->runtime -= dl_se->dl_yielded ? 0 : delta_exec; trace_sched_stat_params_dl(curr, dl_se->runtime, dl_se->deadline); if (dl_runtime_exceeded(dl_se)) { -- 1.9.1