dm: remove request-based DM queue's lld_busy_fn hook
authorMike Snitzer <snitzer@redhat.com>
Tue, 24 Feb 2015 00:10:15 +0000 (19:10 -0500)
committerMike Snitzer <snitzer@redhat.com>
Tue, 31 Mar 2015 16:03:49 +0000 (12:03 -0400)
commitd56b9b28a4a5d9e61dd99154b986e760373e2392
treeaea0bb97d20c9457849cd57773273fe67274f81b
parent52b09914af86fa3e728175c1125c91520e437b2f
dm: remove request-based DM queue's lld_busy_fn hook

DM multipath is the only caller of blk_lld_busy() -- which calls a
queue's lld_busy_fn hook.  Request-based DM doesn't support stacking
multipath devices so there is no reason to register the lld_busy_fn hook
on a multipath device's queue using blk_queue_lld_busy().

As such, remove functions dm_lld_busy and dm_table_any_busy_target.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/dm-table.c
drivers/md/dm.c
drivers/md/dm.h