int llapi_heat_get(int fd, struct lu_heat *heat);
int llapi_heat_set(int fd, __u64 flags);
+int llapi_ioctl(int fd, unsigned int cmd, void *buf);
+
int llapi_layout_sanity(struct llapi_layout *layout, bool incomplete, bool flr);
void llapi_layout_sanity_perror(int error);
int llapi_layout_dom_size(struct llapi_layout *layout, uint64_t *size);