nvme: fix and clarify the check for missing metadata

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Update the check in nvme_setup_rw for missing metadata so that it is
together with the other metadata handling, does not contain impossible
to reach conditions and warns if we get an impossible requests for
a (non-PI) metadata-enabled namespace when CONFIG_BLK_DEV_INTEGRITY
is not set.

Also add a little helper that checks if a given metadata configuration
contains protection information

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Javier González <jg@lightnvm.io>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Christoph Hellwig 2017-11-07 17:27:34 +01:00 • committed by Jens Axboe

parent 24b0b58c5b

commit 715ea9e09d

1 changed files with 18 additions and 13 deletions

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drivers/nvme/host/core.c

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