LU-4843 mdt: disallow old clients access striped dir

[fs/lustre-release.git] / lustre / mdt / mdt_handler.c

diff --git a/lustre/mdt/mdt_handler.c b/lustre/mdt/mdt_handler.c
index 298e9d8..8ae3794 100644 (file)
--- a/lustre/mdt/mdt_handler.c
+++ b/lustre/mdt/mdt_handler.c
@@ -785,9 +785,9 @@ static int mdt_getattr_internal(struct mdt_thread_info *info,
 
        if (mdt_object_remote(o)) {
                /* This object is located on remote node.*/
-               /* Return -EIO for old client */
+               /* Return -ENOTSUPP for old client */
                if (!mdt_is_dne_client(req->rq_export))
-                       GOTO(out, rc = -EIO);
+                       GOTO(out, rc = -ENOTSUPP);
 
                repbody->fid1 = *mdt_object_fid(o);
                repbody->valid = OBD_MD_FLID | OBD_MD_MDS;
@@ -897,12 +897,19 @@ static int mdt_getattr_internal(struct mdt_thread_info *info,
                         mdt_dump_lmm(D_INFO, ma->ma_lmm, repbody->valid);
                 }
                if (ma->ma_valid & MA_LMV) {
+                       /* Return -ENOTSUPP for old client */
+                       if (!mdt_is_striped_client(req->rq_export))
+                               RETURN(-ENOTSUPP);
+
                        LASSERT(S_ISDIR(la->la_mode));
                        mdt_dump_lmv(D_INFO, ma->ma_lmv);
                        repbody->eadatasize = ma->ma_lmv_size;
                        repbody->valid |= (OBD_MD_FLDIREA|OBD_MD_MEA);
                }
                if (ma->ma_valid & MA_LMV_DEF) {
+                       /* Return -ENOTSUPP for old client */
+                       if (!mdt_is_striped_client(req->rq_export))
+                               RETURN(-ENOTSUPP);
                        LASSERT(S_ISDIR(la->la_mode));
                        repbody->eadatasize = ma->ma_lmv_size;
                        repbody->valid |= (OBD_MD_FLDIREA|OBD_MD_DEFAULT_MEA);