[PATCH 3/4] sched/fair: move call to list_last_entry() in detach_tasks

[Vincent Guittot]

Move the call to list_last_entry() in detach_tasks() after testing
loop_max and loop_break.

Signed-off-by: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
---
 kernel/sched/fair.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6972a1a29a48..260a55ac462f 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -8047,8 +8047,6 @@ static int detach_tasks(struct lb_env *env)
 		if (env->idle != CPU_NOT_IDLE && env->src_rq->nr_running <= 1)
 			break;
 
-		p = list_last_entry(tasks, struct task_struct, se.group_node);
-
 		env->loop++;
 		/*
 		 * We've more or less seen every task there is, call it quits
@@ -8065,6 +8063,8 @@ static int detach_tasks(struct lb_env *env)
 			break;
 		}
 
+		p = list_last_entry(tasks, struct task_struct, se.group_node);
+
 		if (!can_migrate_task(p, env))
 			goto next;
 
-- 
2.17.1