* [PATCH RT] Remove double warning print with faulty preempt disable nesting
@ 2007-06-19 20:23 Steven Rostedt
0 siblings, 0 replies; only message in thread
From: Steven Rostedt @ 2007-06-19 20:23 UTC (permalink / raw)
To: Ingo Molnar; +Cc: Thomas Gleixner, LKML, RT
On a faulty preempt disable bug we print out a warning but then we go
and call preempt_enable_no_resched, which also can print out a warning.
This is redundant.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Index: linux-2.6.21-rt9/lib/smp_processor_id.c
===================================================================
--- linux-2.6.21-rt9.orig/lib/smp_processor_id.c
+++ linux-2.6.21-rt9/lib/smp_processor_id.c
@@ -47,7 +47,11 @@ unsigned int notrace debug_smp_processor
dump_stack();
out_enable:
- preempt_enable_no_resched();
+ /*
+ * Don't print message if we enable to zero.
+ * We arleady printed a warning up above.
+ */
+ __preempt_enable_no_resched();
out:
return this_cpu;
}
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