diff options
| -rw-r--r-- | drivers/md/md-cluster.c | 30 | ||||
| -rw-r--r-- | drivers/md/md-cluster.h | 1 | ||||
| -rw-r--r-- | drivers/md/md.c | 7 |
3 files changed, 37 insertions, 1 deletions
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index 10c44a3..30b41b7 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -72,6 +72,7 @@ enum msg_type { METADATA_UPDATED = 0, RESYNCING, NEWDISK, + REMOVE, }; struct cluster_msg { @@ -401,6 +402,16 @@ static void process_metadata_update(struct mddev *mddev, struct cluster_msg *msg dlm_lock_sync(cinfo->no_new_dev_lockres, DLM_LOCK_CR); } +static void process_remove_disk(struct mddev *mddev, struct cluster_msg *msg) +{ + struct md_rdev *rdev = md_find_rdev_nr_rcu(mddev, msg->raid_slot); + + if (rdev) + md_kick_rdev_from_array(rdev); + else + pr_warn("%s: %d Could not find disk(%d) to REMOVE\n", __func__, __LINE__, msg->raid_slot); +} + static void process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg) { switch (msg->type) { @@ -419,6 +430,15 @@ static void process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg) pr_info("%s: %d Received message: NEWDISK from %d\n", __func__, __LINE__, msg->slot); process_add_new_disk(mddev, msg); + break; + case REMOVE: + pr_info("%s: %d Received REMOVE from %d\n", + __func__, __LINE__, msg->slot); + process_remove_disk(mddev, msg); + break; + default: + pr_warn("%s:%d Received unknown message from %d\n", + __func__, __LINE__, msg->slot); } } @@ -854,6 +874,15 @@ static int new_disk_ack(struct mddev *mddev, bool ack) return 0; } +static int remove_disk(struct mddev *mddev, struct md_rdev *rdev) +{ + struct cluster_msg cmsg; + struct md_cluster_info *cinfo = mddev->cluster_info; + cmsg.type = REMOVE; + cmsg.raid_slot = rdev->desc_nr; + return __sendmsg(cinfo, &cmsg); +} + static struct md_cluster_operations cluster_ops = { .join = join, .leave = leave, @@ -868,6 +897,7 @@ static struct md_cluster_operations cluster_ops = { .add_new_disk_start = add_new_disk_start, .add_new_disk_finish = add_new_disk_finish, .new_disk_ack = new_disk_ack, + .remove_disk = remove_disk, }; static int __init cluster_init(void) diff --git a/drivers/md/md-cluster.h b/drivers/md/md-cluster.h index 7417133..71e5143 100644 --- a/drivers/md/md-cluster.h +++ b/drivers/md/md-cluster.h @@ -22,6 +22,7 @@ struct md_cluster_operations { int (*add_new_disk_start)(struct mddev *mddev, struct md_rdev *rdev); 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); }; #endif /* _MD_CLUSTER_H */ diff --git a/drivers/md/md.c b/drivers/md/md.c index d406a79..ca011d1 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2477,8 +2477,10 @@ state_store(struct md_rdev *rdev, const char *buf, size_t len) else { struct mddev *mddev = rdev->mddev; if (mddev_is_clustered(mddev)) - md_cluster_ops->metadata_update_start(mddev); + md_cluster_ops->remove_disk(mddev, rdev); md_kick_rdev_from_array(rdev); + if (mddev_is_clustered(mddev)) + md_cluster_ops->metadata_update_start(mddev); if (mddev->pers) md_update_sb(mddev, 1); md_new_event(mddev); @@ -5968,6 +5970,9 @@ static int hot_remove_disk(struct mddev *mddev, dev_t dev) if (rdev->raid_disk >= 0) goto busy; + if (mddev_is_clustered(mddev)) + md_cluster_ops->remove_disk(mddev, rdev); + md_kick_rdev_from_array(rdev); md_update_sb(mddev, 1); md_new_event(mddev); |
