sched: fix startup penalty calculation



fix task startup penalty miscalculation: sysctl_sched_granularity is
unsigned int and wait_runtime is long so we first have to convert it
to long before turning it negative ...

Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent ea0aa3b2

kernel/sched_fair.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1047,7 +1047,7 @@ static void task_new_fair(struct rq rq, struct task_struct p)
		* -granularity/2, so initialize the task with that:
		*/
		if (sysctl_sched_features & SCHED_FEAT_START_DEBIT)
		p->se.wait_runtime = -(sysctl_sched_granularity / 2);
		p->se.wait_runtime = -((long)sysctl_sched_granularity / 2);

		__enqueue_entity(cfs_rq, se);
		}