Upstream 3.0.42-43

https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/log/?h=linux-3.0.y

Conflicts:
block: replace __getblk_slow misfix by grow_dev_page fix
https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-3.0.y&id=72013257f37b157958a9b3a9a102fc6d3f7dde0a