diff options
| author | Mike Snitzer <snitzer@redhat.com> | 2014-12-05 17:11:05 -0500 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2015-02-09 13:06:47 -0500 |
| commit | 1ae49ea2cf3ef097d4496981261a400f1f988b84 (patch) | |
| tree | 816a2c908e575cc31c55af8a1cfec5dcee65e5e9 /drivers/md/dm-mpath.c | |
| parent | dbf9782c1078c537831201c73ac60c9623ae9370 (diff) | |
dm: split request structure out from dm_rq_target_io structure
Request-based DM support for blk-mq devices requires that
dm_rq_target_io structures not be allocated with an embedded request
structure. The request-based DM target (e.g. dm-multipath) must
allocate the request from the blk-mq devices' request_queue using
blk_get_request().
The unfortunate side-effect of this change is old-style request-based DM
support will no longer use contiguous memory for the dm_rq_target_io and
request structures for each clone.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-mpath.c')
0 files changed, 0 insertions, 0 deletions