19 struct ww_class {  struct
33 	struct ww_class *ww_class;  argument
49 	struct ww_class *ww_class;  member
54 # define __WW_CLASS_MUTEX_INITIALIZER(lockname, ww_class) \  argument
55 		, .ww_class = &ww_class
57 # define __WW_CLASS_MUTEX_INITIALIZER(lockname, ww_class)  argument
60 #define __WW_CLASS_INITIALIZER(ww_class) \  argument
62 		, .acquire_name = #ww_class "_acquire" \
63 		, .mutex_name = #ww_class "_mutex" }
70 	struct ww_class classname = __WW_CLASS_INITIALIZER(classname)
72 #define DEFINE_WW_MUTEX(mutexname, ww_class) \  argument
73 	struct ww_mutex mutexname = __WW_MUTEX_INITIALIZER(mutexname, ww_class)
86 				 struct ww_class *ww_class)  in ww_mutex_init()  argument
88 	__mutex_init(&lock->base, ww_class->mutex_name, &ww_class->mutex_key);  in ww_mutex_init()
91 	lock->ww_class = ww_class;  in ww_mutex_init()
120 				   struct ww_class *ww_class)  in ww_acquire_init()  argument
123 	ctx->stamp = atomic_long_inc_return(&ww_class->stamp);  in ww_acquire_init()
126 	ctx->ww_class = ww_class;  in ww_acquire_init()
132 	lockdep_init_map(&ctx->dep_map, ww_class->acquire_name,  in ww_acquire_init()
133 			 &ww_class->acquire_key, 0);  in ww_acquire_init()