nvme: enable generic interface (/dev/ngXnY) for unknown command sets
Extend nvme_alloc_ns() and nvme_validate_ns() for unknown command-set as well. Both are made to use a new helper (nvme_update_ns_info_cs_indep) which is similar to nvme_update_ns_info but performs fewer operations to get the generic interface up. Suggested-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NJoel Granados <j.granados@samsung.com> Signed-off-by: NKanchan Joshi <joshi.k@samsung.com> [hch: rebased on other refactoring patches] Signed-off-by: NChristoph Hellwig <hch@lst.de> Reviewed-by: NJavier González <javier.gonz@samsung.com> Reviewed-by: NSagi Grimberg <sagi@grimberg.me> Signed-off-by: NJens Axboe <axboe@kernel.dk>
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