svn commit: r241734 - head/sys/sparc64/sparc64

[Marius Strobl]

Author: marius
Date: Fri Oct 19 13:32:37 2012
New Revision: 241734
URL: http://svn.freebsd.org/changeset/base/241734

Log:
  Let SCHED_ULE give affinity to the CPU the tick interrupt triggered on
  when running tick_process(), similarly to what the x86 equivalents of
  this function do, however employing the less racy sequence also used in
  intr_event_handle().
  
  MFC after:	3 days

Modified:
  head/sys/sparc64/sparc64/tick.c

Modified: head/sys/sparc64/sparc64/tick.c
==============================================================================
--- head/sys/sparc64/sparc64/tick.c	Fri Oct 19 13:26:40 2012	(r241733)
+++ head/sys/sparc64/sparc64/tick.c	Fri Oct 19 13:32:37 2012	(r241734)
@@ -245,14 +245,16 @@ tick_process(struct trapframe *tf)
 	struct trapframe *oldframe;
 	struct thread *td;
 
+	td = curthread;
+	td->td_intr_nesting_level++;
 	critical_enter();
 	if (tick_et.et_active) {
-		td = curthread;
 		oldframe = td->td_intr_frame;
 		td->td_intr_frame = tf;
 		tick_et.et_event_cb(&tick_et, tick_et.et_arg);
 		td->td_intr_frame = oldframe;
 	}
+	td->td_intr_nesting_level--;
 	critical_exit();
 }