RB_CMP3WAY        258 include/linux/ceph/libceph.h DEFINE_RB_INSDEL_FUNCS2(name, type, keyfld, RB_CMP3WAY, RB_BYVAL, nodefld)
RB_CMP3WAY        262 include/linux/ceph/libceph.h DEFINE_RB_LOOKUP_FUNC2(name, type, keyfld, RB_CMP3WAY, RB_BYVAL,	\