nvme: Add pr_ops read_reservation support

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This patch adds support for the pr_ops read_reservation callout by
calling the NVMe Reservation Report helper. It then parses that info to
detect if there is a reservation and if there is then convert the
returned info to a pr_ops pr_held_reservation struct.

Signed-off-by: Mike Christie <michael.christie@oracle.com>
Link: https://lore.kernel.org/r/20230407200551.12660-14-michael.christie@oracle.com
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Mike Christie 2023-04-07 15:05:46 -05:00 • committed by Martin K. Petersen

parent be1a7cd2d0

commit 28c97ba38f

1 changed files with 83 additions and 0 deletions

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drivers/nvme/host/pr.c

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