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authorGoldwyn Rodrigues <rgoldwyn@suse.com>2015-09-30 21:20:35 +0300
committerGoldwyn Rodrigues <rgoldwyn@suse.com>2015-10-12 11:32:44 +0300
commitc186b128cda5a246da25f474e4689cb2bfacfcac (patch)
tree69f77dba5456eee35afab5e8f5f7ebc02b50910f /drivers/md/md-cluster.h
parent2aa82191ac36cd2f2a41aa25697db30ed7c619ef (diff)
downloadlinux-c186b128cda5a246da25f474e4689cb2bfacfcac.tar.xz
md-cluster: Perform resync/recovery under a DLM lock
Resync or recovery must be performed by only one node at a time. A DLM lock resource, resync_lockres provides the mutual exclusion so that only one node performs the recovery/resync at a time. If a node is unable to get the resync_lockres, because recovery is being performed by another node, it set MD_RECOVER_NEEDED so as to schedule recovery in the future. Remove the debug message in resync_info_update() used during development. Signed-off-by: Goldwyn Rodrigues <rgoldwyn@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 f5bdc0c86eaa..c94172673599 100644
--- a/drivers/md/md-cluster.h
+++ b/drivers/md/md-cluster.h
@@ -16,6 +16,8 @@ struct md_cluster_operations {
int (*metadata_update_start)(struct mddev *mddev);
int (*metadata_update_finish)(struct mddev *mddev);
int (*metadata_update_cancel)(struct mddev *mddev);
+ int (*resync_start)(struct mddev *mddev);
+ int (*resync_finish)(struct mddev *mddev);
int (*area_resyncing)(struct mddev *mddev, int direction, sector_t lo, sector_t hi);
int (*add_new_disk_start)(struct mddev *mddev, struct md_rdev *rdev);
int (*add_new_disk_finish)(struct mddev *mddev);