dmu_buf_get_user
dnode_children_t *children = dmu_buf_get_user(&dn->dn_dbuf->db);
dmu_buf_get_user(&dn->dn_dbuf->db) == NULL);
dnc = dmu_buf_get_user(&db->db);
if (ds == dmu_buf_get_user(dbuf))
ds = dmu_buf_get_user(dbuf);
dd = dmu_buf_get_user(dbuf);
handle = dmu_buf_get_user(db);
void *dmu_buf_get_user(dmu_buf_t *db);
zap_leaf_t *l = dmu_buf_get_user(db);
zap_t *zap = dmu_buf_get_user(db);
hdl = dmu_buf_get_user(db);