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| author | Goldwyn Rodrigues <rgoldwyn@suse.de> | 2015-04-14 10:45:42 -0500 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2015-04-22 07:59:39 +1000 |
| commit | 97f6cd39da227459cb46ed4088d37d5d8db51c50 (patch) | |
| tree | 129f07ab60f7f7fd4b6ac792bb29d40bcf938aa1 /drivers/md/md-cluster.h | |
| parent | a6da4ef85cef0382244fc588c901e133a2ec5109 (diff) | |
| download | lwn-97f6cd39da227459cb46ed4088d37d5d8db51c50.tar.gz lwn-97f6cd39da227459cb46ed4088d37d5d8db51c50.zip | |
md-cluster: re-add capabilities
When "re-add" is writted to /sys/block/mdXX/md/dev-YYY/state,
the clustered md:
1. Sends RE_ADD message with the desc_nr. Nodes receiving the message
clear the Faulty bit in their respective rdev->flags.
2. The node initiating re-add, gathers the bitmaps of all nodes
and copies them into the local bitmap. It does not clear the bitmap
from which it is copying.
3. Initiating node schedules a md recovery to sync the devices.
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'drivers/md/md-cluster.h')
| -rw-r--r-- | drivers/md/md-cluster.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/md-cluster.h b/drivers/md/md-cluster.h index 71e51432c1f4..6817ee00e053 100644 --- a/drivers/md/md-cluster.h +++ b/drivers/md/md-cluster.h @@ -23,6 +23,7 @@ struct md_cluster_operations { int (*add_new_disk_finish)(struct mddev *mddev); 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); }; #endif /* _MD_CLUSTER_H */ |