diff options
Diffstat (limited to 'include/linux/rtmutex.h')
| -rw-r--r-- | include/linux/rtmutex.h | 23 |
1 files changed, 17 insertions, 6 deletions
diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h index cb0f441fecb9..852740285d71 100644 --- a/include/linux/rtmutex.h +++ b/include/linux/rtmutex.h @@ -19,6 +19,21 @@ extern int max_lock_depth; /* for sysctl */ +struct rt_mutex_base { + raw_spinlock_t wait_lock; + struct rb_root_cached waiters; + struct task_struct *owner; +}; + +#define __RT_MUTEX_BASE_INITIALIZER(rtbasename) \ +{ \ + .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(rtbasename.wait_lock), \ + .waiters = RB_ROOT_CACHED, \ + .owner = NULL \ +} + +extern void rt_mutex_base_init(struct rt_mutex_base *rtb); + /** * The rt_mutex structure * @@ -28,9 +43,7 @@ extern int max_lock_depth; /* for sysctl */ * @owner: the mutex owner */ struct rt_mutex { - raw_spinlock_t wait_lock; - struct rb_root_cached waiters; - struct task_struct *owner; + struct rt_mutex_base rtmutex; #ifdef CONFIG_DEBUG_LOCK_ALLOC struct lockdep_map dep_map; #endif @@ -63,9 +76,7 @@ do { \ #define __RT_MUTEX_INITIALIZER(mutexname) \ { \ - .wait_lock = __RAW_SPIN_LOCK_UNLOCKED(mutexname.wait_lock), \ - .waiters = RB_ROOT_CACHED, \ - .owner = NULL, \ + .rtmutex = __RT_MUTEX_BASE_INITIALIZER(mutexname.rtmutex), \ __DEP_MAP_RT_MUTEX_INITIALIZER(mutexname) \ } |