Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: filesystem hang caused by incorrect lock order
  GFS2: Don't try to deallocate unlinked inodes when mounted ro
  GFS2: directly write blocks past i_size
  GFS2: write_end error path fails to unlock transaction lock