From efbe027e95dc13ac343b6130948418d7ead7ddf1 Mon Sep 17 00:00:00 2001
From: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Date: Mon, 8 Dec 2008 20:52:49 +0530
Subject: sched: idle_balance() does not call load_balance_newidle()
Impact: fix SD_BALANCE_NEWIDLEand broaden its use
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.
Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
kernel/sched.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
(limited to 'kernel')
diff --git a/kernel/sched.c b/kernel/sched.c
index 74498c8..bb9c638 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3685,7 +3685,7 @@ 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;
--
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