From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752768AbYKXMFS (ORCPT ); Mon, 24 Nov 2008 07:05:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751334AbYKXMFF (ORCPT ); Mon, 24 Nov 2008 07:05:05 -0500 Received: from ti-out-0910.google.com ([209.85.142.186]:54070 "EHLO ti-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752078AbYKXMFD (ORCPT ); Mon, 24 Nov 2008 07:05:03 -0500 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :content-type:content-transfer-encoding; b=ZJO9f3hnA+5+cBlLfVvAGY8h0/bQc89Gbi8ULxEYxZMQVsEAxjzuX4Pw2BgeED8ndc YCtil25x0m3EXkM+YRf8pg1DuI6m8Je3xMpz0XiVMMLCYbNgCb9SsS2R8J8JdVXX2wgB 0wPdicYqPK1o4JWzd7FwKusvQ9woG9YCJyXD4= Message-ID: <492A986D.8030809@gmail.com> Date: Mon, 24 Nov 2008 20:05:01 +0800 From: jia zhang User-Agent: Thunderbird 2.0.0.18 (Windows/20081105) MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: Ingo Molnar Subject: [PATCH] sched: inaccurate calculation for normal priority Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Here we should check to see if the task is a rt ktherad or normal rt process, although right now MAX_USER_RT_PRIO is equal MAX_RT_PRIO. Signed-off-by: jia zhang --- b/kernel/sched.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched.c b/kernel/sched.c index 9b1e793..b3038e4 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -1711,7 +1711,8 @@ static inline int normal_prio(struct task_struct *p) int prio; if (task_has_rt_policy(p)) - prio = MAX_RT_PRIO-1 - p->rt_priority; + prio = p->mm ? MAX_USER_RT_PRIO-1 - p->rt_priority : + MAX_RT_PRIO-1 - p->rt_priority; else prio = __normal_prio(p); return prio;