LU-14975 dne: dir migration in non-recursive mode

[fs/lustre-release.git] / lustre / lmv / lmv_obd.c

diff --git a/lustre/lmv/lmv_obd.c b/lustre/lmv/lmv_obd.c
index 64d19e3..3e876f5 100644 (file)
--- a/lustre/lmv/lmv_obd.c
+++ b/lustre/lmv/lmv_obd.c
@@ -2267,6 +2267,11 @@ static int lmv_migrate(struct obd_export *exp, struct md_op_data *op_data,
                        tp_tgt = lmv_tgt(lmv, oinfo->lmo_mds);
                        if (!tp_tgt)
                                RETURN(-ENODEV);
+
+                       /* parent unchanged and update namespace only */
+                       if (lu_fid_eq(&op_data->op_fid4, &op_data->op_fid2) &&
+                           op_data->op_bias & MDS_MIGRATE_NSONLY)
+                               RETURN(-EALREADY);
                }
        } else {
                sp_tgt = parent_tgt;