md-cluster: add CHANGE_CAPACITY message type (7da3d203) · Commits · e / devices / android_kernel_teracube_mt6765

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>

drivers/md/md-cluster.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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),