lightnvm: pblk: add l2p crc debug printouts

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Print the CRC of the logical-to-physical mapping during exit and
after recovering the L2P table to facilitate detection of meta
data corruption/recovery issues.

The CRC printed after recovery should match the CRC printed during
the previous exit - if it doesn't this indicates that either the meta
data written to the disk is corrupt or recovery failed.

Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Hans Holmberg 2017-10-13 14:46:40 +02:00 • committed by Jens Axboe

parent 1edebacf8b

commit c55861926a

1 changed files with 34 additions and 5 deletions

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39

drivers/lightnvm/pblk-init.c

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