[PATCH v6 7/7] sched: idle_balance() does not call load_balance_newidle()

[Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>]

load_balance_newidle() does not get called if SD_BALANCE_NEWIDLE
is set at higher level domain (3-CPU) and not in low level domain
(2-MC).

pulled_task is initialised to -1 and checked for non-zero which
is always true if the lowest level sched_domain does not have
SD_BALANCE_NEWIDLE flag set.

Trivial fix to initialise pulled_task to zero.

This patch has been queued for 2.6.29
http://lkml.org/lkml/2008/12/8/213

Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
---

 kernel/sched.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index f82a7a0..e6a88bf 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3773,7 +3773,7 @@ out_balanced:
 static void idle_balance(int this_cpu, struct rq *this_rq)
 {
 	struct sched_domain *sd;
-	int pulled_task = -1;
+	int pulled_task = 0;
 	unsigned long next_balance = jiffies + HZ;
 	cpumask_t tmpmask;