Revision 1:
  Use %llu not %Lu in sscanf/printf format strings.

Revision 2:
  Fix log type module ref counting.

Revision 3:
  Split target suspend hook into presuspend and postsuspend.

Revision 4:
  Remove unused bs_bio_init().

Revision 5:
  Multipath.

Revision 6:
  Round-robin path selector.

Revision 7:
  Add hardware handler framework.

Revision 8:
  EMC hw_handler.

Revision 9:
  Fill out mpath suspend/resume functions so queued I/O without a path is errored.

Revision 10:
  Tidy bypass_pg_num

Revision 11:
  Validate supplied priority group count.

Revision 12:
  Don't change PG until it runs out of paths.

Revision 13:
  Add switch_group message.

Revision 14:
  Tidy pgpath in choosing funcs.

Revision 15:
  Always clear m->next.

Revision 16:
  Tidy do_end_io.

Revision 17:
  Try a ps_end_io_fn

Revision 18:
  Remove a stray path_lookup from rr.

Revision 19:
  Add path selector args.

Revision 20:
  add ps args to arg comment

Revision 21:
  Add new ps args to status/table output.

Revision 22:
  Add initial PG number to table.

Revision 23:
  Add next_pg to table output.

Revision 24:
  Fix status line.

Revision 25:
  Avoid endio references to invalid pgpath.

Revision 26:
  Add (optional) arguments to dm-emc for influencing the switch-over command.

Revision 27:
  Fix queue_if_no_path when multiple bios fail together.

Revision 28:
  Flakey target.

Revision 29:
  mm kgdb