md/multipath: discard ->working_disks in favour of ->degraded

conf->working_disks duplicates information already available
in mddev->degraded.
So remove working_disks.

Signed-off-by: NeilBrown <neilb@suse.de>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/md/multipath.h b/drivers/md/multipath.h
index d1c2a8d78395..3c5a45eb5f8a 100644
--- a/drivers/md/multipath.h
+++ b/drivers/md/multipath.h
@@ -9,7 +9,6 @@ struct multipath_private_data {
         mddev_t                 *mddev;
         struct multipath_info   *multipaths;
         int                     raid_disks;
-        int                     working_disks;
         spinlock_t              device_lock;
         struct list_head        retry_list;