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authorSagi Grimberg <sagi@grimberg.me>2016-07-31 18:43:15 +0300
committerSagi Grimberg <sagi@grimberg.me>2016-08-03 16:25:03 +0300
commit5f372eb3e76317b4fe4ba53ad1547f39fc883350 (patch)
treee823a93cccc9e4b72ed8ada0d9896b0fc3fb7051 /drivers/nvme
parent0b857b44b5e445dc850cd91c45ce6edeb7797480 (diff)
downloadlinux-5f372eb3e76317b4fe4ba53ad1547f39fc883350.tar.xz
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 <sagi@grimberg.me> Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme')
-rw-r--r--drivers/nvme/host/rdma.c4
1 files changed, 3 insertions, 1 deletions
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");