__DEFINE_SRCU
#define DEFINE_SRCU(name) __DEFINE_SRCU(name, 0, /* not static */)
#define DEFINE_STATIC_SRCU(name) __DEFINE_SRCU(name, 0, static)
#define DEFINE_SRCU_FAST(name) __DEFINE_SRCU(name, SRCU_READ_FLAVOR_FAST, /* not static */)
#define DEFINE_STATIC_SRCU_FAST(name) __DEFINE_SRCU(name, SRCU_READ_FLAVOR_FAST, static)
#define DEFINE_SRCU_FAST_UPDOWN(name) __DEFINE_SRCU(name, SRCU_READ_FLAVOR_FAST_UPDOWN, \
__DEFINE_SRCU(name, SRCU_READ_FLAVOR_FAST_UPDOWN, static)