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From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Chris Mason <chris.mason@oracle.com>,
	Frank Rowand <frank.rowand@am.sony.com>,
	Ingo Molnar <mingo@elte.hu>, Thomas Gleixner <tglx@linutronix.de>,
	Mike Galbraith <efault@gmx.de>, Oleg Nesterov <oleg@redhat.com>,
	Paul Turner <pjt@google.com>, Jens Axboe <axboe@kernel.dk>,
	Yong Zhang <yong.zhang0@gmail.com>
Cc: linux-kernel@vger.kernel.org, Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [RFC][PATCH 15/17] sched: Rename ttwu_post_activation
Date: Fri, 24 Dec 2010 13:23:53 +0100	[thread overview]
Message-ID: <20101224123743.253497432@chello.nl> (raw)
In-Reply-To: 20101224122338.172750730@chello.nl

[-- Attachment #1: sched-ttwu_do_wakeup.patch --]
[-- Type: text/plain, Size: 1367 bytes --]

The ttwu_post_actication() does the core wakeup, it sets TASK_RUNNING
and performs wakeup-preemption, so give is a more descriptive name.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---
 kernel/sched.c |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

Index: linux-2.6/kernel/sched.c
===================================================================
--- linux-2.6.orig/kernel/sched.c
+++ linux-2.6/kernel/sched.c
@@ -2399,8 +2399,11 @@ ttwu_stat(struct task_struct *p, int cpu
 #endif /* CONFIG_SCHEDSTATS */
 }
 
+/*
+ * Mark the task runnable and perform wakeup-preemption.
+ */
 static void
-ttwu_post_activation(struct task_struct *p, struct rq *rq, int wake_flags)
+ttwu_do_wakeup(struct rq *rq, struct task_struct *p, int wake_flags)
 {
 	trace_sched_wakeup(p, true);
 	check_preempt_curr(rq, p, wake_flags);
@@ -2492,7 +2495,7 @@ try_to_wake_up(struct task_struct *p, un
 
 	activate_task(rq, p, ENQUEUE_WAKEUP | ENQUEUE_WAKING);
 out_running:
-	ttwu_post_activation(p, rq, wake_flags);
+	ttwu_do_wakeup(rq, p, wake_flags);
 	success = 1;
 	__task_rq_unlock(rq);
 
@@ -2529,7 +2532,7 @@ static void try_to_wake_up_local(struct 
 	if (!p->on_rq)
 		activate_task(rq, p, ENQUEUE_WAKEUP);
 
-	ttwu_post_activation(p, rq, 0);
+	ttwu_do_wakeup(rq, p, 0);
 	ttwu_stat(p, smp_processor_id(), 0);
 out:
 	raw_spin_unlock(&p->pi_lock);



  parent reply	other threads:[~2010-12-24 12:42 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-24 12:23 [RFC][PATCH 00/17] sched: Reduce runqueue lock contention -v3 Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 01/17] sched: Always provide p->on_cpu Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 02/17] mutex: Use p->on_cpu for the adaptive spin Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 03/17] sched: Change the ttwu success details Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 04/17] sched: Clean up ttwu stats Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 05/17] x86: Optimize arch_spin_unlock_wait() Peter Zijlstra
2010-12-24 18:26   ` Linus Torvalds
2011-01-03 11:32     ` Peter Zijlstra
2011-01-04  6:45       ` Nick Piggin
2011-01-05 19:14         ` [RFC][PATCH] spinlock: Kill spin_unlock_wait() Peter Zijlstra
2011-01-05 19:26           ` Oleg Nesterov
2011-01-05 19:43           ` Linus Torvalds
2011-01-06  9:32             ` Peter Zijlstra
2011-01-06 10:38               ` Nick Piggin
2011-01-06 18:26                 ` Peter Zijlstra
2011-01-07 21:01                   ` Tejun Heo
2011-01-07 21:13                     ` Jeff Garzik
2011-01-07 21:33                       ` Tejun Heo
2010-12-24 12:23 ` [RFC][PATCH 06/17] sched: Provide p->on_rq Peter Zijlstra
2010-12-29 14:14   ` Yong Zhang
2010-12-24 12:23 ` [RFC][PATCH 07/17] sched: Serialize p->cpus_allowed and ttwu() using p->pi_lock Peter Zijlstra
2010-12-29 14:20   ` Yong Zhang
2011-01-03 11:12     ` Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 08/17] sched: Drop the rq argument to sched_class::select_task_rq() Peter Zijlstra
2010-12-29 14:31   ` Yong Zhang
2011-01-03 11:16     ` Peter Zijlstra
2011-01-03 14:59       ` Oleg Nesterov
2011-01-03 15:21         ` Peter Zijlstra
2011-01-03 15:49           ` Oleg Nesterov
2011-01-03 16:35             ` Peter Zijlstra
2011-01-03 16:41               ` Peter Zijlstra
2011-01-04  7:27             ` Yong Zhang
2011-01-04 12:34               ` Peter Zijlstra
2011-01-04  5:59       ` Yong Zhang
2011-01-04 13:00         ` Peter Zijlstra
2011-01-03 18:05   ` Oleg Nesterov
2011-01-04 13:01     ` Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 09/17] sched: Remove rq argument to sched_class::task_waking() Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 10/17] sched: Add TASK_WAKING to task_rq_lock Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 11/17] sched: Delay task_contributes_to_load() Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 12/17] sched: Also serialize ttwu_local() with p->pi_lock Peter Zijlstra
2011-01-03 17:32   ` Oleg Nesterov
2011-01-09 23:11     ` Tejun Heo
2010-12-24 12:23 ` [RFC][PATCH 13/17] sched: Remove rq->lock from the first half of ttwu() Peter Zijlstra
2010-12-24 12:23 ` [RFC][PATCH 14/17] sched: Remove rq argument to ttwu_stat() Peter Zijlstra
2010-12-29 14:40   ` Yong Zhang
2011-01-03 11:20     ` Peter Zijlstra
2010-12-24 12:23 ` Peter Zijlstra [this message]
2010-12-24 12:23 ` [RFC][PATCH 16/17] sched: Move the second half of ttwu() to the remote cpu Peter Zijlstra
2011-01-03 14:36   ` [RFC][PATCH] sembench: add stddev to the burn stats Peter Zijlstra
2011-01-04 14:28   ` [RFC][PATCH 16/17] sched: Move the second half of ttwu() to the remote cpu Oleg Nesterov
2011-01-04 14:47     ` Peter Zijlstra
2011-01-04 15:18       ` Oleg Nesterov
2011-01-04 15:43         ` Peter Zijlstra
2011-01-04 16:06           ` Oleg Nesterov
2010-12-24 12:23 ` [RFC][PATCH 17/17] sched: Sort hotplug vs ttwu queueing Peter Zijlstra
2010-12-29 14:51   ` Yong Zhang
2011-01-03 11:21     ` Peter Zijlstra
2010-12-24 13:15 ` [RFC][PATCH 00/17] sched: Reduce runqueue lock contention -v3 Peter Zijlstra

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