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Subject[git pull] scheduler fix
Linus,

Please pull the latest sched-fixes-for-linus git tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git sched-fixes-for-linus

Thanks,

Ingo

------------------>
Peter Zijlstra (1):
sched: fix possible recursive rq->lock


kernel/sched.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 2e3545f..deb5ac8 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3728,8 +3728,13 @@ redo:
}

double_unlock_balance(this_rq, busiest);
+ /*
+ * Should not call ttwu while holding a rq->lock
+ */
+ spin_unlock(&this_rq->lock);
if (active_balance)
wake_up_process(busiest->migration_thread);
+ spin_lock(&this_rq->lock);

} else
sd->nr_balance_failed = 0;

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