md-cluster: remove capabilities
This adds "remove" capabilities for the clustered environment.
When a user initiates removal of a device from the array, a
REMOVE message with disk number in the array is sent to all
the nodes which kick the respective device in their own array.
This facilitates the removal of failed devices.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.de>
diff --git a/drivers/md/md.c b/drivers/md/md.c
index d406a79..ca011d1 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2477,8 +2477,10 @@
else {
struct mddev *mddev = rdev->mddev;
if (mddev_is_clustered(mddev))
- md_cluster_ops->metadata_update_start(mddev);
+ md_cluster_ops->remove_disk(mddev, rdev);
md_kick_rdev_from_array(rdev);
+ if (mddev_is_clustered(mddev))
+ md_cluster_ops->metadata_update_start(mddev);
if (mddev->pers)
md_update_sb(mddev, 1);
md_new_event(mddev);
@@ -5968,6 +5970,9 @@
if (rdev->raid_disk >= 0)
goto busy;
+ if (mddev_is_clustered(mddev))
+ md_cluster_ops->remove_disk(mddev, rdev);
+
md_kick_rdev_from_array(rdev);
md_update_sb(mddev, 1);
md_new_event(mddev);