Author: jhb
Date: Tue Nov 18 05:41:34 2008
New Revision: 185047
URL: http://svn.freebsd.org/changeset/base/185047
Log:
When checking to see if another CPU is running its idle thread, examine
the thread running on the other CPU instead of the thread being placed on
the run queue.
Reported by: Ravi Murty @ Intel
Reviewed by: jeff
Modified:
head/sys/kern/sched_ule.c
Modified: head/sys/kern/sched_ule.c
==============================================================================
--- head/sys/kern/sched_ule.c Tue Nov 18 04:04:01 2008 (r185046)
+++ head/sys/kern/sched_ule.c Tue Nov 18 05:41:34 2008 (r185047)
@@ -946,7 +946,7 @@ tdq_idled(struct tdq *tdq)
static void
tdq_notify(struct tdq *tdq, struct thread *td)
{
- int cpri;
+ struct thread *ctd;
int pri;
int cpu;
@@ -954,10 +954,10 @@ tdq_notify(struct tdq *tdq, struct threa
return;
cpu = td->td_sched->ts_cpu;
pri = td->td_priority;
- cpri = pcpu_find(cpu)->pc_curthread->td_priority;
- if (!sched_shouldpreempt(pri, cpri, 1))
+ ctd = pcpu_find(cpu)->pc_curthread;
+ if (!sched_shouldpreempt(pri, ctd->td_priority, 1))
return;
- if (TD_IS_IDLETHREAD(td)) {
+ if (TD_IS_IDLETHREAD(ctd)) {
/*
* If the idle thread is still 'running' it's probably
* waiting on us to release the tdq spinlock already. No
_______________________________________________
svn-src-all@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/svn-src-all
To unsubscribe, send any mail to "[EMAIL PROTECTED]"
