dm: support non power of two target max_io_len

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / md / dm-raid1.c

diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index ea16984..819ccba 100644 (file)
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -1081,9 +1081,14 @@ static int mirror_ctr(struct dm_target *ti, unsigned int argc, char **argv)
        }
 
        ti->private = ms;
-       ti->split_io = dm_rh_get_region_size(ms->rh);
+
+       r = dm_set_target_max_io_len(ti, dm_rh_get_region_size(ms->rh));
+       if (r)
+               goto err_free_context;
+
        ti->num_flush_requests = 1;
        ti->num_discard_requests = 1;
+       ti->discard_zeroes_data_unsupported = 1;
 
        ms->kmirrord_wq = alloc_workqueue("kmirrord",
                                          WQ_NON_REENTRANT | WQ_MEM_RECLAIM, 0);