446 			     int (*callback)(void *callback_context,  in insert_exceptions()  argument
448 			     void *callback_context,  in insert_exceptions()
482 		r = callback(callback_context, e.old_chunk, e.new_chunk);  in insert_exceptions()
491 			   int (*callback)(void *callback_context, chunk_t old,  in read_exceptions()  argument
493 			   void *callback_context)  in read_exceptions()
541 		r = insert_exceptions(ps, area, callback, callback_context,  in read_exceptions()
609 				    int (*callback)(void *callback_context,  in persistent_read_metadata()  argument
611 				    void *callback_context)  in persistent_read_metadata()
668 	r = read_exceptions(ps, callback, callback_context);  in persistent_read_metadata()
699 					void *callback_context)  in persistent_commit_exception()  argument
721 	cb->context = callback_context;  in persistent_commit_exception()