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From: John Baldwin <jhb@FreeBSD.org>
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Subject: PERFORCE change 95074 for review
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http://perforce.freebsd.org/chv.cgi?CH=95074

Change 95074 by jhb@jhb_slimer on 2006/04/12 18:59:16

	Don't adjust the thread's priority in msleep (and tsleep) if the
	priority value is 0.

Affected files ...

.. //depot/projects/smpng/sys/kern/kern_synch.c#100 edit

Differences ...

==== //depot/projects/smpng/sys/kern/kern_synch.c#100 (text+ko) ====

@@ -195,9 +195,11 @@
 	/*
 	 * Adjust this thread's priority.
 	 */
-	mtx_lock_spin(&sched_lock);
-	sched_prio(td, priority & PRIMASK);
-	mtx_unlock_spin(&sched_lock);
+	if (priority & PRIMASK != 0) {
+		mtx_lock_spin(&sched_lock);
+		sched_prio(td, priority & PRIMASK);
+		mtx_unlock_spin(&sched_lock);
+	}
 
 	if (timo && catch)
 		rval = sleepq_timedwait_sig(ident);