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authorBart Van Assche <bart.vanassche@sandisk.com>2017-04-27 10:11:23 -0700
committerMike Snitzer <snitzer@redhat.com>2017-04-27 17:08:44 -0400
commit7e0d574f2683a2346c978613a72ff07afc89b17a (patch)
treef1b83fd5151b6f364b01b25950b174914205acc4 /drivers/md/dm-mpath.c
parentb194679fac3067e785f432109c69759aa75b038c (diff)
dm: introduce enum dm_queue_mode to cleanup related code
Introduce an enumeration type for the queue mode. This patch does not change any functionality but makes the DM code easier to read. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Diffstat (limited to 'drivers/md/dm-mpath.c')
-rw-r--r--drivers/md/dm-mpath.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 730ec0be1afa..8336332bd61f 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -90,7 +90,7 @@ struct multipath {
atomic_t pg_init_in_progress; /* Only one pg_init allowed at once */
atomic_t pg_init_count; /* Number of times pg_init called */
- unsigned queue_mode;
+ enum dm_queue_mode queue_mode;
struct mutex work_mutex;
struct work_struct trigger_event;
@@ -1700,6 +1700,9 @@ static void multipath_status(struct dm_target *ti, status_type_t type,
case DM_TYPE_MQ_REQUEST_BASED:
DMEMIT("queue_mode mq ");
break;
+ default:
+ WARN_ON_ONCE(true);
+ break;
}
}
}