linux-kernel - [RFC 16/18] limits: track RLIMIT

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Message-Id: <1465847065-3577-17-git-send-email-toiwoton@gmail.com>
Date:	Mon, 13 Jun 2016 22:44:23 +0300
From:	Topi Miettinen <toiwoton@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	Topi Miettinen <toiwoton@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>
Subject: [RFC 16/18] limits: track RLIMIT_NICE actual max

Track maximum nice priority, presented in /proc/self/limits.

Signed-off-by: Topi Miettinen <toiwoton@...il.com>
---
 kernel/sched/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 017d539..817d720 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3692,6 +3692,8 @@ void set_user_nice(struct task_struct *p, long nice)
 		if (delta < 0 || (delta > 0 && task_running(rq, p)))
 			resched_curr(rq);
 	}
+	task_bump_rlimit(p, RLIMIT_NICE, nice_to_rlimit(nice));
+
 out_unlock:
 	task_rq_unlock(rq, p, &rf);
 }
-- 
2.8.1