Greg KH wrote:
> This is the start of the stable review cycle for the 2.6.19.5 release.
> 
> This will probably be the last release of the 2.6.19-stable series, so
> if there are patches that you feel should be applied to that tree,
> please let me know.

This patch should go in 2.6.19 and 2.6.20 -stable as well.
(It's in 2.6.21-rc.)