ceph_mds_op_name
seq_printf(s, "%s", ceph_mds_op_name(req->r_op));
ceph_mds_op_name(req->r_op), req->r_attempts);
extern const char *ceph_mds_op_name(int op);
extern const char *ceph_mds_op_name(int op);
ceph_mds_op_name(__entry->op),
ceph_mds_op_name(__entry->op))
ceph_mds_op_name(__entry->op),
ceph_mds_op_name(__entry->op),
ceph_mds_op_name(__entry->op),