switch ecryptfs to ->iterate_shared

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index f024040..7000b96 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -383,7 +383,7 @@
 #endif
 
 const struct file_operations ecryptfs_dir_fops = {
-	.iterate = ecryptfs_readdir,
+	.iterate_shared = ecryptfs_readdir,
 	.read = generic_read_dir,
 	.unlocked_ioctl = ecryptfs_unlocked_ioctl,
 #ifdef CONFIG_COMPAT