diff options
| -rw-r--r-- | drivers/md/md-cluster.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index bef6a47..41573f1 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -520,11 +520,13 @@ static void process_readd_disk(struct mddev *mddev, struct cluster_msg *msg) __func__, __LINE__, le32_to_cpu(msg->raid_slot)); } -static void process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg) +static int process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg) { + int ret = 0; + if (WARN(mddev->cluster_info->slot_number - 1 == le32_to_cpu(msg->slot), "node %d received it's own msg\n", le32_to_cpu(msg->slot))) - return; + return -1; switch (le32_to_cpu(msg->type)) { case METADATA_UPDATED: process_metadata_update(mddev, msg); @@ -547,9 +549,11 @@ static void process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg) __recover_slot(mddev, le32_to_cpu(msg->slot)); break; default: + ret = -1; pr_warn("%s:%d Received unknown message from %d\n", __func__, __LINE__, msg->slot); } + return ret; } /* @@ -573,7 +577,9 @@ static void recv_daemon(struct md_thread *thread) /* read lvb and wake up thread to process this message_lockres */ memcpy(&msg, message_lockres->lksb.sb_lvbptr, sizeof(struct cluster_msg)); - process_recvd_msg(thread->mddev, &msg); + ret = process_recvd_msg(thread->mddev, &msg); + if (ret) + goto out; /*release CR on ack_lockres*/ ret = dlm_unlock_sync(ack_lockres); @@ -587,6 +593,7 @@ static void recv_daemon(struct md_thread *thread) ret = dlm_lock_sync(ack_lockres, DLM_LOCK_CR); if (unlikely(ret != 0)) pr_info("lock CR on ack failed return %d\n", ret); +out: /*release CR on message_lockres*/ ret = dlm_unlock_sync(message_lockres); if (unlikely(ret != 0)) |