From: Sagi Grimberg <sagi@xxxxxxxxxxx> [ Upstream commit b6bb1722f34bbdbabed27acdceaf585d300c5fd2 ] While nvme_rdma_submit_async_event_work is checking the ctrl and queue state before preparing the AER command and scheduling io_work, in order to fully prevent a race where this check is not reliable the error recovery work must flush async_event_work before continuing to destroy the admin queue after setting the ctrl state to RESETTING such that there is no race .submit_async_event and the error recovery handler itself changing the ctrl state. Signed-off-by: Sagi Grimberg <sagi@xxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/nvme/host/rdma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c index 1b90563818434..8eacc9bd58f5a 100644 --- a/drivers/nvme/host/rdma.c +++ b/drivers/nvme/host/rdma.c @@ -1200,6 +1200,7 @@ static void nvme_rdma_error_recovery_work(struct work_struct *work) struct nvme_rdma_ctrl, err_work); nvme_stop_keep_alive(&ctrl->ctrl); + flush_work(&ctrl->ctrl.async_event_work); nvme_rdma_teardown_io_queues(ctrl, false); nvme_start_queues(&ctrl->ctrl); nvme_rdma_teardown_admin_queue(ctrl, false); -- 2.34.1
