From: Sagi Grimberg <sagi@grimberg.me>
Date: Thu, 22 Oct 2020 10:15:23 +0800
Subject: [PATCH] nvme-rdma: avoid repeated request completion
Patch-mainline: v5.10-rc3
Git-commit: fdf58e02adecbef4c7cbb2073d8ea225e6fd5f26
References: bsc#1181161
The request may be executed asynchronously, and rq->state may be
changed to IDLE. To avoid repeated request completion, only
MQ_RQ_COMPLETE of rq->state is checked in nvme_rdma_complete_timed_out.
It is not safe, so need adding check IDLE for rq->state.
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Chao Leng <lengchao@huawei.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Enzo Matsumiya <ematsumiya@suse.de>
---
drivers/nvme/host/rdma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 83dbf2223125..75d071d34319 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -1975,7 +1975,7 @@ static void nvme_rdma_complete_timed_out(struct request *rq)
struct nvme_rdma_queue *queue = req->queue;
nvme_rdma_stop_queue(queue);
- if (!blk_mq_request_completed(rq)) {
+ if (blk_mq_request_started(rq) && !blk_mq_request_completed(rq)) {
nvme_req(rq)->status = NVME_SC_HOST_ABORTED_CMD;
blk_mq_complete_request(rq);
}
--
2.30.0