linux-kernel - [PATCH Resend 0/3] sched: fix nr_busy

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Message-Id: <1354537588-25831-1-git-send-email-vincent.guittot@linaro.org>
Date:	Mon,  3 Dec 2012 13:26:25 +0100
From:	Vincent Guittot <vincent.guittot@...aro.org>
To:	linux-kernel@...r.kernel.org, linaro-dev@...ts.linaro.org,
	peterz@...radead.org, mingo@...nel.org
Cc:	ccross@...roid.com, Vincent Guittot <vincent.guittot@...aro.org>
Subject: [PATCH Resend 0/3] sched: fix nr_busy_cpus

The nr_busy_cpus field of the sched_group_power is sometime different from 0
whereas the platform is fully idle. This serie fixes 3 use cases:
 - when the SCHED softirq is raised on an idle core for idle load balance but
   the platform doesn't go out of the cpuidle state
 - when some CPUs enter idle state while booting all CPUs
 - when a CPU is unplug and/or replug

Vincent Guittot (3):
  sched: fix nr_busy_cpus with coupled cpuidle
  sched: fix init NOHZ_IDLE flag
  sched: fix update NOHZ_IDLE flag

 kernel/sched/core.c      |    1 +
 kernel/sched/fair.c      |    2 +-
 kernel/time/tick-sched.c |    2 ++
 3 files changed, 4 insertions(+), 1 deletion(-)

-- 
1.7.9.5

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