block: fix blk_integrity_register to use template's interval_exp if not 0

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When registering an integrity profile: if the template's interval_exp is
not 0 use it, otherwise use the ilog2() of logical block size of the
provided gendisk.

This fixes a long-standing DM linear target bug where it cannot pass
integrity data to the underlying device if its logical block size
conflicts with the underlying device's logical block size.

Cc: stable@vger.kernel.org
Reported-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <axboe@fb.com>

...

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Mike Snitzer 2017-04-22 17:22:09 -04:00 • committed by Jens Axboe

parent 659226eb63

commit 2859323e35

1 changed files with 2 additions and 1 deletions

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block/blk-integrity.c

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