LU-6027 mdd: Don't list "trusted.link" for orphans

[fs/lustre-release.git] / lustre / mdd / mdd_object.c

diff --git a/lustre/mdd/mdd_object.c b/lustre/mdd/mdd_object.c
index f1d78f1..95d5313 100644 (file)
--- a/lustre/mdd/mdd_object.c
+++ b/lustre/mdd/mdd_object.c
@@ -289,7 +289,35 @@ static int mdd_xattr_list(const struct lu_env *env, struct md_object *obj,
         rc = mdo_xattr_list(env, mdd_obj, buf, mdd_object_capa(env, mdd_obj));
         mdd_read_unlock(env, mdd_obj);
 
-        RETURN(rc);
+       if (rc < 0)
+               RETURN(rc);
+
+       /*
+        * Filter out XATTR_NAME_LINK if this is an orphan object.  See
+        * mdd_xattr_get().
+        */
+       if (unlikely(mdd_obj->mod_flags & (DEAD_OBJ | ORPHAN_OBJ))) {
+               char   *end = (char *)buf->lb_buf + rc;
+               char   *p = buf->lb_buf;
+
+               while (p < end) {
+                       char   *next = p + strlen(p) + 1;
+
+                       if (strcmp(p, XATTR_NAME_LINK) == 0) {
+                               if (end - next > 0)
+                                       memmove(p, next, end - next);
+                               rc -= next - p;
+                               CDEBUG(D_INFO, "Filtered out "XATTR_NAME_LINK
+                                      " of orphan "DFID"\n",
+                                      PFID(mdd_object_fid(mdd_obj)));
+                               break;
+                       }
+
+                       p = next;
+               }
+       }
+
+       RETURN(rc);
 }
 
 int mdd_declare_object_create_internal(const struct lu_env *env,