Merge branch 'work.coredump' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Merge branch 'work.coredump' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull coredump updates from Al Viro:
 "Just a couple of patches this cycle: use of seek + write instead of
  expanding truncate and minor header cleanup"

* 'work.coredump' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  coredump.h: move CONFIG_COREDUMP-only stuff inside the ifdef
  coredump: don't bother with do_truncate()