From: Steven Rostedt <rostedt@goodmis.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Peter Zijlstra <peterz@infradead.org>,
Yong Zhang <yong.zhang0@gmail.com>,
Hillf Danton <dhillf@gmail.com>
Subject: [RFC][PATCH 2/7] sched: Remove noop in next_prio()
Date: Thu, 16 Jun 2011 21:55:18 -0400 [thread overview]
Message-ID: <20110617015918.232117378@goodmis.org> (raw)
In-Reply-To: 20110617015516.301117218@goodmis.org
[-- Attachment #1: 0002-sched-Remove-noop-in-next_prio.patch --]
[-- Type: text/plain, Size: 949 bytes --]
From: Hillf Danton <dhillf@gmail.com>
When computing the next priority for a given run-queue, the check for
RT priority of the task determined by the pick_next_highest_task_rt()
function could be removed, since only RT tasks are returned by the
function.
Reviewed-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Hillf Danton <dhillf@gmail.com>
Link: http://lkml.kernel.org/r/BANLkTimxmWiof9s5AvS3v_0X+sMiE=0x5g@mail.gmail.com
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
kernel/sched_rt.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index 9b8d5dc..a6f1f64 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -692,7 +692,7 @@ static inline int next_prio(struct rq *rq)
{
struct task_struct *next = pick_next_highest_task_rt(rq, rq->cpu);
- if (next && rt_prio(next->prio))
+ if (next)
return next->prio;
else
return MAX_RT_PRIO;
--
1.7.4.4
next prev parent reply other threads:[~2011-06-17 1:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-17 1:55 [RFC][PATCH 0/7] sched: various updates to the scheduler Steven Rostedt
2011-06-17 1:55 ` [RFC][PATCH 1/7] sched: Fix need_resched() when checking peempt Steven Rostedt
2011-06-17 1:55 ` Steven Rostedt [this message]
2011-06-17 1:55 ` [RFC][PATCH 3/7] sched: Remove noop in lowest_flag_domain() Steven Rostedt
2011-06-17 1:55 ` [RFC][PATCH 4/7] sched, rt: Fix rq->rt.pushable_tasks bug in push_rt_task() Steven Rostedt
2011-06-17 2:33 ` Mike Galbraith
2011-06-17 2:41 ` Steven Rostedt
2011-06-17 1:55 ` [RFC][PATCH 5/7] sched: Remove resetting exec_start in put_prev_task_rt() Steven Rostedt
2011-06-17 1:55 ` [RFC][PATCH 6/7] sched: Balance RT tasks when forked as well Steven Rostedt
2011-07-26 12:25 ` Peter Zijlstra
2011-07-26 12:35 ` Steven Rostedt
2011-07-26 12:36 ` Peter Zijlstra
2011-07-26 12:50 ` Steven Rostedt
2011-08-14 16:05 ` [tip:sched/core] " tip-bot for Steven Rostedt
2011-06-17 1:55 ` [RFC][PATCH 7/7] sched: Use pushable_tasks to determine next highest prio Steven Rostedt
2011-06-17 2:40 ` [RFC][PATCH 0/7] sched: various updates to the scheduler Steven Rostedt
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