sched: fix startup penalty calculation

095e56c7 · Ingo Molnar <[email protected]> · 2007-08-24 20:39:10 +02:00

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 <[email protected]>

Commit: 095e56c7036fe97bc3ebcd80ed6e121be0847656
Parents: ea0aa3b2

Changes

1 files changed · +1 −1

File	Status	Add	Del	Content
kernel/sched_fair.c	modified	+1	−1	View file

kernel/sched_fair.c

View file

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index c078f1a..4d6b7e2 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -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);
 }