From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932709AbcGOKiA (ORCPT ); Fri, 15 Jul 2016 06:38:00 -0400 Received: from mail-wm0-f68.google.com ([74.125.82.68]:33992 "EHLO mail-wm0-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932679AbcGOKhz (ORCPT ); Fri, 15 Jul 2016 06:37:55 -0400 From: Topi Miettinen To: linux-kernel@vger.kernel.org Cc: Topi Miettinen , Ingo Molnar , Peter Zijlstra Subject: [PATCH 13/14] resource limits: track highwater mark of niceness Date: Fri, 15 Jul 2016 13:36:00 +0300 Message-Id: <1468578983-28229-14-git-send-email-toiwoton@gmail.com> X-Mailer: git-send-email 2.8.1 In-Reply-To: <1468578983-28229-1-git-send-email-toiwoton@gmail.com> References: <1468578983-28229-1-git-send-email-toiwoton@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Track maximum nice priority, to be able to configure RLIMIT_NICE resource limits. The information is available with taskstats and cgroupstats netlink socket. Signed-off-by: Topi Miettinen --- kernel/sched/core.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 97ee9ac..da32bcd 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3693,6 +3693,9 @@ void set_user_nice(struct task_struct *p, long nice) if (delta < 0 || (delta > 0 && task_running(rq, p))) resched_curr(rq); } + task_update_resource_highwatermark(p, RLIMIT_NICE, + nice_to_rlimit(nice)); + out_unlock: task_rq_unlock(rq, p, &rf); } -- 2.8.1