summaryrefslogtreecommitdiffstats
path: root/include/linux/mutex.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/mutex.h')
-rw-r--r--include/linux/mutex.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index 3069ec7e0ab8..878cab4f5fcc 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -150,5 +150,6 @@ extern int __must_check mutex_lock_killable(struct mutex *lock);
*/
extern int mutex_trylock(struct mutex *lock);
extern void mutex_unlock(struct mutex *lock);
+extern int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock);
#endif