diff options
Diffstat (limited to 'include/linux/mutex.h')
| -rw-r--r-- | include/linux/mutex.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/mutex.h b/include/linux/mutex.h index d3181936c138..c482e1d2cc49 100644 --- a/include/linux/mutex.h +++ b/include/linux/mutex.h @@ -46,6 +46,7 @@ * - detects multi-task circular deadlocks and prints out all affected * locks and tasks (and only those tasks) */ +struct mcs_spinlock; struct mutex { /* 1: unlocked, 0: locked, negative: locked, possible waiters */ atomic_t count; @@ -55,7 +56,7 @@ struct mutex { struct task_struct *owner; #endif #ifdef CONFIG_MUTEX_SPIN_ON_OWNER - void *spin_mlock; /* Spinner MCS lock */ + struct mcs_spinlock *mcs_lock; /* Spinner MCS lock */ #endif #ifdef CONFIG_DEBUG_MUTEXES const char *name; @@ -179,4 +180,4 @@ extern int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock); # define arch_mutex_cpu_relax() cpu_relax() #endif -#endif +#endif /* __LINUX_MUTEX_H */ |