[PATCH] sched: Fix use of count for nr_running tracepoint

[Phil Auld <pauld@redhat.com>]

The count field is meant to tell if an update to nr_running
is an add or a subtract. Make it do so by adding the missing
minus sign.

Fixes: 9d246053a691 ("sched: Add a tracepoint to track rq->nr_running")
Signed-off-by: Phil Auld <pauld@redhat.com>
---
 kernel/sched/sched.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 3fd283892761..28709f6b0975 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1999,7 +1999,7 @@ static inline void sub_nr_running(struct rq *rq, unsigned count)
 {
 	rq->nr_running -= count;
 	if (trace_sched_update_nr_running_tp_enabled()) {
-		call_trace_sched_update_nr_running(rq, count);
+		call_trace_sched_update_nr_running(rq, -count);
 	}
 
 	/* Check if we still need preemption */
-- 
2.26.2