[patch] mark mutex_lock*() as might_sleep()

[patch] mark mutex_lock*() as might_sleep()

[Ingo Molnar]

mark mutex_lock() and mutex_lock_interruptible() as might_sleep()
functions.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

----

 kernel/mutex.c |    2 ++
 1 files changed, 2 insertions(+)

Index: linux/kernel/mutex.c
===================================================================
--- linux.orig/kernel/mutex.c
+++ linux/kernel/mutex.c
@@ -81,6 +81,7 @@ __mutex_lock_slowpath(atomic_t *lock_cou
  */
 void fastcall __sched mutex_lock(struct mutex *lock)
 {
+	might_sleep();
 	/*
 	 * The locking fastpath is the 1->0 transition from
 	 * 'unlocked' into 'locked' state.
@@ -253,6 +254,7 @@ __mutex_lock_interruptible_slowpath(atom
  */
 int fastcall __sched mutex_lock_interruptible(struct mutex *lock)
 {
+	might_sleep();
 	return __mutex_fastpath_lock_retval
 			(&lock->count, __mutex_lock_interruptible_slowpath);
 }