83 	struct mutex dev_mutex;  member
235 	mutex_lock(&dev->dev_mutex);  in ubiblock_open()
264 	mutex_unlock(&dev->dev_mutex);  in ubiblock_open()
268 	mutex_unlock(&dev->dev_mutex);  in ubiblock_open()
276 	mutex_lock(&dev->dev_mutex);  in ubiblock_release()
282 	mutex_unlock(&dev->dev_mutex);  in ubiblock_release()
374 	mutex_init(&dev->dev_mutex);  in ubiblock_create()
472 	mutex_lock(&dev->dev_mutex);  in ubiblock_remove()
481 	mutex_unlock(&dev->dev_mutex);  in ubiblock_remove()
488 	mutex_unlock(&dev->dev_mutex);  in ubiblock_remove()
523 	mutex_lock(&dev->dev_mutex);  in ubiblock_resize()
530 	mutex_unlock(&dev->dev_mutex);  in ubiblock_resize()