Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm

* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm:
  dm: tidy local_init
  dm: remove unused flush_all
  dm raid1: separate region_hash interface part1
  dm: mark split bio as cloned
  dm crypt: remove waitqueue
  dm crypt: fix async split
  dm crypt: tidy sector
  dm: remove dm header from targets
  dm: publish array_too_big
  dm exception store: fix misordered writes
  dm exception store: refactor zero_area
  dm snapshot: drop unused last_percent
  dm snapshot: fix primary_pe race
  dm kcopyd: avoid queue shuffle