diff options
Diffstat (limited to 'kernel/semaphore.c')
| -rw-r--r-- | kernel/semaphore.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/semaphore.c b/kernel/semaphore.c index 5c2942e768cd..1a064adab658 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 @@ void down(struct semaphore *sem) { unsigned long flags; + ftrace_special(sem->count, 0, __LINE__); spin_lock_irqsave(&sem->lock, flags); if (likely(sem->count > 0)) sem->count--; |