cachefiles_msg
struct cachefiles_msg msg;
struct cachefiles_msg *msg;
req->msg.len = sizeof(struct cachefiles_msg) + data_len;
TP_PROTO(struct cachefiles_object *obj, struct cachefiles_msg *msg,
TP_PROTO(struct cachefiles_object *obj, struct cachefiles_msg *msg),
TP_PROTO(struct cachefiles_object *obj, struct cachefiles_msg *msg,