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authorGuoqing Jiang <gqjiang@suse.com>2015-12-21 02:51:00 +0300
committerNeilBrown <neilb@suse.com>2016-01-06 03:38:57 +0300
commitf6a2dc64ee74477c966f5220b1f560ed6308d010 (patch)
treeb371e1cbeb71c2e04e45be01c4964faace6ec400 /drivers/md/md-cluster.h
parent09afd2a8d6ad2c40f3c1ae0b3f83784864cf4c15 (diff)
downloadlinux-f6a2dc64ee74477c966f5220b1f560ed6308d010.tar.xz
md-cluster: append some actions when change bitmap from clustered to none
For clustered raid, we need to do extra actions when change bitmap to none. 1. check if all the bitmap lock could be get or not, if yes then we can continue the change since cluster raid is only active in current node. Otherwise return fail and unlock the related bitmap locks 2. set nodes to 0 and then leave cluster environment. 3. release other nodes's bitmap lock. Signed-off-by: Guoqing Jiang <gqjiang@suse.com> Signed-off-by: NeilBrown <neilb@suse.com>
Diffstat (limited to 'drivers/md/md-cluster.h')
-rw-r--r--drivers/md/md-cluster.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/md/md-cluster.h b/drivers/md/md-cluster.h
index e75ea2613184..45ce6c97d8bd 100644
--- a/drivers/md/md-cluster.h
+++ b/drivers/md/md-cluster.h
@@ -24,6 +24,8 @@ struct md_cluster_operations {
int (*new_disk_ack)(struct mddev *mddev, bool ack);
int (*remove_disk)(struct mddev *mddev, struct md_rdev *rdev);
int (*gather_bitmaps)(struct md_rdev *rdev);
+ int (*lock_all_bitmaps)(struct mddev *mddev);
+ void (*unlock_all_bitmaps)(struct mddev *mddev);
};
#endif /* _MD_CLUSTER_H */