LU-2739 mdt: Deny non-DNE client to access remote directory

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

diff --git a/lustre/mdt/mdt_open.c b/lustre/mdt/mdt_open.c
index 0e95251..6c2483f 100644 (file)
--- a/lustre/mdt/mdt_open.c
+++ b/lustre/mdt/mdt_open.c
@@ -1051,6 +1051,12 @@ void mdt_reconstruct_open(struct mdt_thread_info *info,
 
                if (unlikely(mdt_object_remote(child))) {
                        /* the child object was created on remote server */
 
                if (unlikely(mdt_object_remote(child))) {
                        /* the child object was created on remote server */

+                       if (!mdt_is_dne_client(exp)) {
+                               /* Return -EIO for old client */
+                               mdt_object_put(env, parent);
+                               mdt_object_put(env, child);
+                               GOTO(out, rc = -EIO);
+                       }

                        repbody->fid1 = *rr->rr_fid2;
                        repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
                        rc = 0;
                        repbody->fid1 = *rr->rr_fid2;
                        repbody->valid |= (OBD_MD_FLID | OBD_MD_MDS);
                        rc = 0;