commit 74f4e369fc5b52433ad824cef32d3bf1304549be
author Ingo Molnar <mingo@elte.hu> Mon May 12 21:21:15 2008 +0200
committer Thomas Gleixner <tglx@linutronix.de> Fri May 23 22:34:56 2008 +0200
tree c70d073a2740821f52d8b2b09f01626a06201e74
parent 5b82a1b08a00b2adca3d9dd9777efff40b7aaaa1

ftrace: stacktrace fix

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

kernel/semaphore.c

diff --git a/kernel/semaphore.c b/kernel/semaphore.c
index 5c2942e..1a064ad 100644
--- a/kernel/semaphore.c
+++ b/kernel/semaphore.c
@@ -31,6 +31,7 @@
 #include <linux/sched.h>
 #include <linux/semaphore.h>
 #include <linux/spinlock.h>
+#include <linux/ftrace.h>
 
 static noinline void __down(struct semaphore *sem);
 static noinline int __down_interruptible(struct semaphore *sem);
@@ -53,6 +54,7 @@
 {
 	unsigned long flags;
 
+	ftrace_special(sem->count, 0, __LINE__);
 	spin_lock_irqsave(&sem->lock, flags);
 	if (likely(sem->count > 0))
 		sem->count--;