dm: allow immutable request-based targets to use blk-mq pdu
authorMike Snitzer <snitzer@redhat.com>
Sun, 31 Jan 2016 17:05:42 +0000 (12:05 -0500)
committerMike Snitzer <snitzer@redhat.com>
Tue, 23 Feb 2016 03:34:37 +0000 (22:34 -0500)
commit591ddcfc4bfad28e096787b1159942124d49cd1e
tree985975cb6a1bc173243d938ae283df37d18e959c
parent30187e1d48a258e304af184c45c3140c8509d219
dm: allow immutable request-based targets to use blk-mq pdu

This will allow DM multipath to use a portion of the blk-mq pdu space
for target data (e.g. struct dm_mpath_io).

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