nvme: multipath: round-robin: fix single non-optimized path case

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If there's only one usable, non-optimized path, nvme_round_robin_path()
returns NULL, which is wrong. Fix it by falling back to "old", like in
the single optimized path case. Also, if the active path isn't changed,
there's no need to re-assign the pointer.

Fixes: 3f6e3246db ("nvme-multipath: fix logic for non-optimized paths")
Signed-off-by: Martin Wilck <mwilck@suse.com>
Signed-off-by: Martin George <marting@netapp.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Martin Wilck 2020-08-06 15:19:31 +02:00 • committed by Jens Axboe

parent f34448cd0d

commit 93eb0381e1

1 changed files with 10 additions and 5 deletions

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drivers/nvme/host/multipath.c

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