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nvme: fix identify error status silent ignore
Commit59c7c3caaa
intended to only silently ignore non retry-able errors (DNR bit set) such that we can still identify misbehaving controllers, and in the other hand propagate retry-able errors (DNR bit cleared) so we don't wrongly abandon a namespace just because it happens to be temporarily inaccessible. The goal remains the same as the original commit where this was introduced but unfortunately had the logic backwards. Fixes:59c7c3caaa
("nvme: fix possible hang when ns scanning fails during error recovery") Reported-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Keith Busch <kbusch@kernel.org> Signed-off-by: Christoph Hellwig <hch@lst.de>
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@ -1116,10 +1116,16 @@ static int nvme_identify_ns_descs(struct nvme_ctrl *ctrl, unsigned nsid,
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dev_warn(ctrl->device,
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dev_warn(ctrl->device,
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"Identify Descriptors failed (%d)\n", status);
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"Identify Descriptors failed (%d)\n", status);
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/*
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/*
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* Don't treat an error as fatal, as we potentially already
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* Don't treat non-retryable errors as fatal, as we potentially
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* have a NGUID or EUI-64.
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* already have a NGUID or EUI-64. If we failed with DNR set,
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* we want to silently ignore the error as we can still
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* identify the device, but if the status has DNR set, we want
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* to propagate the error back specifically for the disk
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* revalidation flow to make sure we don't abandon the
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* device just because of a temporal retry-able error (such
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* as path of transport errors).
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*/
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*/
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if (status > 0 && !(status & NVME_SC_DNR))
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if (status > 0 && (status & NVME_SC_DNR))
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status = 0;
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status = 0;
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goto free_data;
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goto free_data;
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}
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}
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