- Now that the VFS no longer uses it, we don't need to cache the symlink
    string length.
  - Make ->readlink() take page offset+length arguments
  - Fix up page under/overflow checking on the readlink XDR code so that
    it matches read/write.
Signed-off-by: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>