hammer2_dirhash
key = hammer2_dirhash(path, len);
hammer2_key_t hammer2_dirhash(const char *aname, size_t len);
lhc = hammer2_dirhash(name, name_len);
lhc = hammer2_dirhash(name, name_len);
lhc = hammer2_dirhash(pfs->name, len);
lhc = hammer2_dirhash(label, strlen(label));
tlhc = hammer2_dirhash(tname, tname_len);
lhc = hammer2_dirhash(name, name_len);
lhc = hammer2_dirhash(name, name_len);
lhc = hammer2_dirhash(name, name_len);
hammer2_key_t hammer2_dirhash(const char *aname, size_t len);
lhc = hammer2_dirhash(name, name_len);
lhc = hammer2_dirhash(name, name_len);
lhc = hammer2_dirhash(pfs->name, len);
lhc = hammer2_dirhash(label, strlen(label));
tlhc = hammer2_dirhash(tname, tname_len);
lhc = hammer2_dirhash(name, name_len);
lhc = hammer2_dirhash(name, name_len);
lhc = hammer2_dirhash(name, name_len);