Merge branch 'work.compat' of git://

Pull compat updates from Al Viro:
 "Some biarch patches - getting rid of assorted (mis)uses of

  Not much in that area this cycle..."

* 'work.compat' of git://
  orangefs: simplify compat ioctl handling
  signalfd: lift sigmask copyin and size checks to callers of do_signalfd4()
  vmsplice(): lift importing iovec into vmsplice(2) and compat counterpart