dm table: train hybrid target type detection to select blk-mq if appropriate
Otherwise replacing the multipath target with the error target fails:
device-mapper: ioctl: can't change device type after initial table load.
The error target was mistakenly considered to be target type
DM_TYPE_REQUEST_BASED rather than DM_TYPE_MQ_REQUEST_BASED even if the
target it was to replace was of type DM_TYPE_MQ_REQUEST_BASED.
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 84d7978..59f53e7 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -101,7 +101,8 @@
/*
* To check whether the target type is request-based or not (bio-based).
*/
-#define dm_target_request_based(t) ((t)->type->map_rq != NULL)
+#define dm_target_request_based(t) (((t)->type->map_rq != NULL) || \
+ ((t)->type->clone_and_map_rq != NULL))
/*
* To check whether the target type is a hybrid (capable of being