http://forum.openvz.org/index.php?t=tree&goto=2914&#msg_2914

diff -ruN unionfs-20060423-1600/dirhelper.c unionfs-20060423-1600-openvz/dirhelper.c
--- unionfs-20060423-1600/dirhelper.c	2006-04-23 22:00:53.000000000 +0200
+++ unionfs-20060423-1600-openvz/dirhelper.c	2006-04-26 22:26:27.502566000 +0200
@@ -65,7 +65,7 @@
 
 	err = 0;
 	mutex_lock(&hidden_dir->i_mutex);
-	do_superio = permission(hidden_dir, MAY_WRITE | MAY_EXEC, NULL);
+	do_superio = permission(hidden_dir, MAY_WRITE | MAY_EXEC, NULL, NULL);
 	if (do_superio)
 		superio_store(&sio);
 	for (i = 0; !err && i < namelist->uds_size; i++) {
diff -ruN unionfs-20060423-1600/inode.c unionfs-20060423-1600-openvz/inode.c
--- unionfs-20060423-1600/inode.c	2006-04-23 22:00:53.000000000 +0200
+++ unionfs-20060423-1600-openvz/inode.c	2006-04-26 22:23:54.693016000 +0200
@@ -832,15 +832,15 @@
 	/* Ordinary permission routines do not understand MAY_APPEND. */
 	submask = mask & ~MAY_APPEND;
 	if (inode->i_op && inode->i_op->permission) {
-		retval = inode->i_op->permission(inode, submask, nd);
+		retval = inode->i_op->permission(inode, submask, nd, NULL);
 		if ((retval == -EACCES) && (submask & MAY_WRITE) &&
 		    (!strcmp("nfs", (inode)->i_sb->s_type->name)) &&
 		    (nd) && (nd->mnt) && (nd->mnt->mnt_sb) &&
 		    (branchperms(nd->mnt->mnt_sb, bindex) & MAY_NFSRO)) {
-			retval = generic_permission(inode, submask, NULL);
+			retval = generic_permission(inode, submask, NULL, NULL);
 		}
 	} else {
-		retval = generic_permission(inode, submask, NULL);
+		retval = generic_permission(inode, submask, NULL, NULL);
 	}
 	if (retval)
 		return retval;
@@ -849,7 +849,7 @@
 }
 
 static int unionfs_permission(struct inode *inode, int mask,
-			      struct nameidata *nd)
+			      struct nameidata *nd, struct exec_perm *ep)
 {
 	struct inode *hidden_inode = NULL;
 	int err = 0;
diff -ruN unionfs-20060423-1600/lookup.c unionfs-20060423-1600-openvz/lookup.c
--- unionfs-20060423-1600/lookup.c	2006-04-23 22:00:53.000000000 +0200
+++ unionfs-20060423-1600-openvz/lookup.c	2006-04-26 22:26:59.736580500 +0200
@@ -347,7 +347,7 @@
 	BUG_ON(!S_ISDIR(hidden_inode->i_mode));
 
 	mutex_lock(&hidden_inode->i_mutex);
-	do_superio = permission(hidden_inode, MAY_EXEC, NULL);
+	do_superio = permission(hidden_inode, MAY_EXEC, NULL, NULL);
 	if (do_superio)
 		superio_store(&sio);
 	wh_hidden_dentry = LOOKUP_ONE_LEN(UNIONFS_DIR_OPAQUE, hidden_dentry,