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-rw-r--r--kernel/sched.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 0170735bdafc..71eb0622f548 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1614,7 +1614,7 @@ static void update_group_shares_cpu(struct task_group *tg, int cpu,
1614 */ 1614 */
1615static int tg_shares_up(struct task_group *tg, void *data) 1615static int tg_shares_up(struct task_group *tg, void *data)
1616{ 1616{
1617 unsigned long weight, rq_weight = 0, shares = 0; 1617 unsigned long weight, rq_weight = 0, sum_weight = 0, shares = 0;
1618 unsigned long *usd_rq_weight; 1618 unsigned long *usd_rq_weight;
1619 struct sched_domain *sd = data; 1619 struct sched_domain *sd = data;
1620 unsigned long flags; 1620 unsigned long flags;
@@ -1630,6 +1630,7 @@ static int tg_shares_up(struct task_group *tg, void *data)
1630 weight = tg->cfs_rq[i]->load.weight; 1630 weight = tg->cfs_rq[i]->load.weight;
1631 usd_rq_weight[i] = weight; 1631 usd_rq_weight[i] = weight;
1632 1632
1633 rq_weight += weight;
1633 /* 1634 /*
1634 * If there are currently no tasks on the cpu pretend there 1635 * If there are currently no tasks on the cpu pretend there
1635 * is one of average load so that when a new task gets to 1636 * is one of average load so that when a new task gets to
@@ -1638,10 +1639,13 @@ static int tg_shares_up(struct task_group *tg, void *data)
1638 if (!weight) 1639 if (!weight)
1639 weight = NICE_0_LOAD; 1640 weight = NICE_0_LOAD;
1640 1641
1641 rq_weight += weight; 1642 sum_weight += weight;
1642 shares += tg->cfs_rq[i]->shares; 1643 shares += tg->cfs_rq[i]->shares;
1643 } 1644 }
1644 1645
1646 if (!rq_weight)
1647 rq_weight = sum_weight;
1648
1645 if ((!shares && rq_weight) || shares > tg->shares) 1649 if ((!shares && rq_weight) || shares > tg->shares)
1646 shares = tg->shares; 1650 shares = tg->shares;
1647 1651