diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index be46f26c9a561..db3ad849a289f 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -837,6 +837,8 @@ static int nfs_lookup_revalidate(struct dentry * dentry, struct nameidata *nd)
 		/* If we have submounts, don't unhash ! */
 		if (have_submounts(dentry))
 			goto out_valid;
+		if (dentry->d_flags & DCACHE_DISCONNECTED)
+			goto out_valid;
 		shrink_dcache_parent(dentry);
 	}
 	d_drop(dentry);