Lines Matching refs:mutex

43 static inline struct mutex *kernfs_open_file_mutex_ptr(struct kernfs_node *kn)
50 static inline struct mutex *kernfs_open_file_mutex_lock(struct kernfs_node *kn)
52 	struct mutex *lock;
82  * the caller guarantees that this mutex is being held, other updaters can't
151 	 * @of->mutex nests outside active ref and is primarily to ensure that
154 	mutex_lock(&of->mutex);
196 	mutex_unlock(&of->mutex);
237 	 * @of->mutex nests outside active ref and is used both to ensure that
240 	mutex_lock(&of->mutex);
243 		mutex_unlock(&of->mutex);
256 	mutex_unlock(&of->mutex);
322 	 * @of->mutex nests outside active ref and is used both to ensure that
325 	mutex_lock(&of->mutex);
327 		mutex_unlock(&of->mutex);
339 	mutex_unlock(&of->mutex);
446 	 * mmap path and of->mutex are prone to triggering spurious lockdep
449 	 * without grabbing @of->mutex by testing HAS_MMAP flag.  See the
455 	mutex_lock(&of->mutex);
495 	mutex_unlock(&of->mutex);
518 	struct mutex *mutex;
520 	mutex = kernfs_open_file_mutex_lock(kn);
527 			mutex_unlock(mutex);
540 	mutex_unlock(mutex);
563 	struct mutex *mutex;
565 	mutex = kernfs_open_file_mutex_lock(kn);
569 		mutex_unlock(mutex);
589 	mutex_unlock(mutex);
629 	 * @of->mutex for files which implement mmap.  This is a rather
631 	 * mm->mmap_lock - mmap nests @of->mutex under mm->mmap_lock and
633 	 * which mm->mmap_lock nests, while holding @of->mutex.  As each
634 	 * open file has a separate mutex, it's okay as long as those don't
645 	 * look that way and give @of->mutex different static lockdep keys.
648 		mutex_init(&of->mutex);
650 		mutex_init(&of->mutex);
652 		mutex_init(&of->mutex);
705 		/* nobody has access to @of yet, skip @of->mutex */
734 	 * @kernfs_open_file_mutex_ptr(kn) is enough. @of->mutex can't be used
758 		struct mutex *mutex;
760 		mutex = kernfs_open_file_mutex_lock(kn);
762 		mutex_unlock(mutex);
796 	struct mutex *mutex;
798 	mutex = kernfs_open_file_mutex_lock(kn);
801 		mutex_unlock(mutex);
819 	mutex_unlock(mutex);
873 	 * @of->mutex nests outside active ref and is primarily to ensure that
876 	mutex_lock(&of->mutex);
878 		mutex_unlock(&of->mutex);
889 	mutex_unlock(&of->mutex);