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sched: idle_balance() does not call load_balance_newidle()

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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>
This commit is contained in:
Vaidyanathan Srinivasan 2008-12-08 20:52:49 +05:30 committed by Ingo Molnar
parent 5436499e60
commit efbe027e95
1 changed files with 1 additions and 1 deletions
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2
kernel/sched.c
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@ -3685,7 +3685,7 @@ load_balance_newidle(int this_cpu, struct rq *this_rq, struct sched_domain *sd,
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;