From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guoqing Jiang Subject: [PATCH 10/14] md-cluster: add CHANGE_CAPACITY message type Date: Fri, 24 Feb 2017 11:15:20 +0800 Message-ID: <1487906124-20107-11-git-send-email-gqjiang@suse.com> References: <1487906124-20107-1-git-send-email-gqjiang@suse.com> Return-path: In-Reply-To: <1487906124-20107-1-git-send-email-gqjiang@suse.com> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org Cc: shli@fb.com, neilb@suse.de, Guoqing Jiang List-Id: linux-raid.ids 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 Signed-off-by: Guoqing Jiang --- drivers/md/md-cluster.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index bcc269312b71..f1b9a7a3ddd2 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -103,6 +103,7 @@ enum msg_type { REMOVE, RE_ADD, BITMAP_NEEDS_SYNC, + CHANGE_CAPACITY, }; struct cluster_msg { @@ -578,6 +579,9 @@ 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); + break; case RESYNCING: process_suspend_info(mddev, le32_to_cpu(msg->slot), le64_to_cpu(msg->low), -- 2.6.2