From aee1f8b87e203b0525f340d2fde94f5a82f6c4bd Mon Sep 17 00:00:00 2001
From: Mike Galbraith <efault@gmx.de>
Date: Tue, 7 Aug 2012 10:02:38 +0200
Subject: [PATCH] sched,rt: fix isolated CPUs leaving root_task_group
 indefinitely throttled

commit e221d028bb08b47e624c5f0a31732c642db9d19a upstream.

Root task group bandwidth replenishment must service all CPUs, regardless of
where the timer was last started, and regardless of the isolation mechanism,
lest 'Quoth the Raven, "Nevermore"' become rt scheduling policy.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1344326558.6968.25.camel@marge.simpson.net
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[bwh: Backported to 3.2: adjust filename]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
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