forked from Minki/linux
nvme: redirect commands on dying queue
If a command send through nvme-multipath failed on a dying queue, resend it on another path. Signed-off-by: Chao Leng <lengchao@huawei.com> [hch: rebased on top of the completion refactoring] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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@ -274,13 +274,14 @@ static inline enum nvme_disposition nvme_decide_disposition(struct request *req)
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return COMPLETE;
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if (req->cmd_flags & REQ_NVME_MPATH) {
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if (nvme_is_path_error(nvme_req(req)->status))
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if (nvme_is_path_error(nvme_req(req)->status) ||
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blk_queue_dying(req->q))
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return FAILOVER;
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} else {
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if (blk_queue_dying(req->q))
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return COMPLETE;
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}
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if (blk_queue_dying(req->q))
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return COMPLETE;
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return RETRY;
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}
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