From cf921cc19cf7c1e99f730a2faa02d80817d684a2 Mon Sep 17 00:00:00 2001 From: Goldwyn Rodrigues Date: Sun, 30 Mar 2014 00:42:49 -0500 Subject: Add node recovery callbacks DLM offers callbacks when a node fails and the lock remastery is performed: 1. recover_prep: called when DLM discovers a node is down 2. recover_slot: called when DLM identifies the node and recovery can start 3. recover_done: called when all nodes have completed recover_slot recover_slot() and recover_done() are also called when the node joins initially in order to inform the node with its slot number. These slot numbers start from one, so we deduct one to make it start with zero which the cluster-md code uses. Signed-off-by: Goldwyn Rodrigues --- drivers/md/md-cluster.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/md/md-cluster.h') diff --git a/drivers/md/md-cluster.h b/drivers/md/md-cluster.h index aa9f07bd6b96..52a21e0d6dbc 100644 --- a/drivers/md/md-cluster.h +++ b/drivers/md/md-cluster.h @@ -8,8 +8,9 @@ struct mddev; struct md_cluster_operations { - int (*join)(struct mddev *mddev); + int (*join)(struct mddev *mddev, int nodes); int (*leave)(struct mddev *mddev); + int (*slot_number)(struct mddev *mddev); }; #endif /* _MD_CLUSTER_H */ -- cgit v1.2.3