Comment 31 for bug 452175

This has been committed to the Lucid tree now, and will be available there in 2.6.32-N.16:
http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-lucid.git;a=commitdiff;h=4ac4eee5ec83a0d9a41f7200c3879b41abd738c8

For Karmic, it will go into the next stable release update, so probably in a few weeks.