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| author | Guoqing Jiang <gqjiang@suse.com> | 2017-03-01 16:42:38 +0800 |
|---|---|---|
| committer | Shaohua Li <shli@fb.com> | 2017-03-16 16:55:49 -0700 |
| commit | 7da3d203330305695f38302c076ee0d32c005ede (patch) | |
| tree | a06e9ba93fb67ebe7170824933c62f51aeb17f55 | |
| parent | 0ba959774e93911caff596de6391f085fb640ac4 (diff) | |
| download | linux-7da3d203330305695f38302c076ee0d32c005ede.tar.gz linux-7da3d203330305695f38302c076ee0d32c005ede.tar.bz2 linux-7da3d203330305695f38302c076ee0d32c005ede.zip | |
md-cluster: add CHANGE_CAPACITY message type
The msg type CHANGE_CAPACITY is introduced to support
resize clustered raid in later patch, and it is sent
after all the nodes have the same sync_size, receiver
node just need to set new capacity once received this
msg.
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: Guoqing Jiang <gqjiang@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
| -rw-r--r-- | drivers/md/md-cluster.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index 5cf0a9d29bf0..8b7d55bf5aa2 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -104,6 +104,7 @@ enum msg_type { REMOVE, RE_ADD, BITMAP_NEEDS_SYNC, + CHANGE_CAPACITY, }; struct cluster_msg { @@ -579,6 +580,10 @@ static int process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg) case METADATA_UPDATED: process_metadata_update(mddev, msg); break; + case CHANGE_CAPACITY: + set_capacity(mddev->gendisk, mddev->array_sectors); + revalidate_disk(mddev->gendisk); + break; case RESYNCING: process_suspend_info(mddev, le32_to_cpu(msg->slot), le64_to_cpu(msg->low), |