nvme: fix the check for duplicate unique identifiers

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nvme_subsys_check_duplicate_ids should needs to return an error if any of
the identifiers matches, not just if all of them match.  But it does not
need to and should not look at the CSI value for this sanity check.

Rewrite the logic to be separate from nvme_ns_ids_equal and optimize it
by reducing duplicate checks for non-present identifiers.

Fixes: ed754e5dee ("nvme: track shared namespaces")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>

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This commit is contained in:

Christoph Hellwig 2022-02-24 11:32:58 +01:00

parent fd8099e791

commit e2724cb9f0

1 changed files with 10 additions and 8 deletions

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drivers/nvme/host/core.c

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