CEPH_MDS_R_GOT_RESULT
if (test_bit(CEPH_MDS_R_GOT_RESULT, &req->r_req_flags)) {
if (req->r_err || test_bit(CEPH_MDS_R_GOT_RESULT, &req->r_req_flags)) {
if (test_bit(CEPH_MDS_R_GOT_RESULT, &req->r_req_flags)) {
set_bit(CEPH_MDS_R_GOT_RESULT, &req->r_req_flags);
BUG_ON(test_bit(CEPH_MDS_R_GOT_RESULT, &req->r_req_flags));