From: Sagi Grimberg Date: Sun, 31 Jul 2016 15:43:15 +0000 (+0300) Subject: nvme-rdma: Queue ns scanning after a sucessful reconnection X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=5f372eb3e76317b4fe4ba53ad1547f39fc883350;p=deliverable%2Flinux.git nvme-rdma: Queue ns scanning after a sucessful reconnection On an ordered target shutdown, the target can send a AEN on a namespace removal, this will trigger the host to queue ns-list query. The shutdown will trigger error recovery which will attepmt periodic reconnect. We can hit a race where the ns rescanning fails (error recovery kicked in and we're not connected) causing removing all the namespaces and when we reconnect we won't see any namespaces for this controller. So, queue a namespace rescan after we successfully reconnected to the target. Signed-off-by: Sagi Grimberg Reviewed-by: Christoph Hellwig --- diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index b96b88369871..7fd1d735ced5 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -748,8 +748,10 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work) changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE); WARN_ON_ONCE(!changed); - if (ctrl->queue_count > 1) + if (ctrl->queue_count > 1) { nvme_start_queues(&ctrl->ctrl); + nvme_queue_scan(&ctrl->ctrl); + } dev_info(ctrl->ctrl.device, "Successfully reconnected\n");