Merge branch 'write_inode2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6

* 'write_inode2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  pass writeback_control to ->write_inode
  make sure data is on disk before calling ->write_inode