linux-kernel - [PATCH 4/8] sched: remove LB

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Date:	Thu, 13 Mar 2014 13:57:25 +0800
From:	Alex Shi <alex.shi@...aro.org>
To:	mingo@...hat.com, peterz@...radead.org, morten.rasmussen@....com
Cc:	vincent.guittot@...aro.org, daniel.lezcano@...aro.org,
	fweisbec@...il.com, linux@....linux.org.uk, tony.luck@...el.com,
	fenghua.yu@...el.com, james.hogan@...tec.com, alex.shi@...aro.org,
	jason.low2@...com, viresh.kumar@...aro.org, hanjun.guo@...aro.org,
	linux-kernel@...r.kernel.org, tglx@...utronix.de,
	akpm@...ux-foundation.org, arjan@...ux.intel.com, pjt@...gle.com,
	fengguang.wu@...el.com, linaro-kernel@...ts.linaro.org,
	wangyun@...ux.vnet.ibm.com, mgorman@...e.de
Subject: [PATCH 4/8] sched: remove LB_BIAS

Don't need LB_BIAS now. so remove it.

Signed-off-by: Alex Shi <alex.shi@...aro.org>
---
 Documentation/timers/NO_HZ.txt | 2 --
 kernel/sched/features.h        | 1 -
 2 files changed, 3 deletions(-)

diff --git a/Documentation/timers/NO_HZ.txt b/Documentation/timers/NO_HZ.txt
index cca122f..84dd71d 100644
--- a/Documentation/timers/NO_HZ.txt
+++ b/Documentation/timers/NO_HZ.txt
@@ -177,8 +177,6 @@ not come for free:
 	slightly differently than those for non-adaptive-tick CPUs.
 	This might in turn perturb load-balancing of real-time tasks.
 
-6.	The LB_BIAS scheduler feature is disabled by adaptive ticks.
-
 Although improvements are expected over time, adaptive ticks is quite
 useful for many types of real-time and compute-intensive applications.
 However, the drawbacks listed above mean that adaptive ticks should not
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index 5716929..fe3c1cb 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -43,7 +43,6 @@ SCHED_FEAT(ARCH_POWER, true)
 
 SCHED_FEAT(HRTICK, false)
 SCHED_FEAT(DOUBLE_TICK, false)
-SCHED_FEAT(LB_BIAS, true)
 
 /*
  * Decrement CPU power based on time not spent running tasks
-- 
1.8.1.2

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