From: Nick Piggin <piggin@cyberone.com.au>
Ensure an RT task of preempting priority is given the CPU as soon as
possible after a sync wakeup.
---
kernel/sched.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN kernel/sched.c~sched-sync-rt-wakeup-fix kernel/sched.c
--- 25/kernel/sched.c~sched-sync-rt-wakeup-fix 2004-01-15 20:04:52.000000000 -0800
+++ 25-akpm/kernel/sched.c 2004-01-15 20:04:52.000000000 -0800
@@ -757,7 +757,7 @@ out_activate:
p->activated = -1;
}
- if (sync && cpu == this_cpu) {
+ if (sync && cpu == this_cpu && likely(!rt_task(p))) {
__activate_task(p, rq);
} else {
activate_task(p, rq);
_