broken extraction/viewing fix from tarfs

[Pavel Tsekov]

Hello,

On Mon, 29 Nov 2004, Jindrich Novy wrote:

> In vfs_s_readlink () there is incorrectly calculated length of buf
> instead of link name in the inode. The random size you may see when
> extracting symlinks from tarfs is caused by the fact that buf is mostly
> uninitialized so the link is truncated almost at random position.

I wonder how it could have gone unnoticed ?! Please, apply.