468 	struct xpc_registration *registration = &xpc_registrations[ch->number];  in xpc_connect_channel()  local
470 	if (mutex_trylock(&registration->mutex) == 0)  in xpc_connect_channel()
474 		mutex_unlock(&registration->mutex);  in xpc_connect_channel()
485 		mutex_unlock(&registration->mutex);  in xpc_connect_channel()
489 	/* add info from the channel connect registration to the channel */  in xpc_connect_channel()
491 	ch->kthreads_assigned_limit = registration->assigned_limit;  in xpc_connect_channel()
492 	ch->kthreads_idle_limit = registration->idle_limit;  in xpc_connect_channel()
497 	ch->func = registration->func;  in xpc_connect_channel()
498 	DBUG_ON(registration->func == NULL);  in xpc_connect_channel()
499 	ch->key = registration->key;  in xpc_connect_channel()
501 	ch->local_nentries = registration->nentries;  in xpc_connect_channel()
504 		if (registration->entry_size != ch->entry_size) {  in xpc_connect_channel()
509 			 * forced to up the registration sema before we unlock  in xpc_connect_channel()
511 			 * done with the part that required the registration  in xpc_connect_channel()
516 			mutex_unlock(&registration->mutex);  in xpc_connect_channel()
523 		ch->entry_size = registration->entry_size;  in xpc_connect_channel()
531 	mutex_unlock(&registration->mutex);  in xpc_connect_channel()
651  * Called by XP at the time of channel connection registration to cause