[dm-devel] [PATCH v2 for-4.12] block: fix blk_integrity_register to use template's interval_exp if not 0

[Jens Axboe]

On 04/22/2017 03:22 PM, Mike Snitzer wrote:
> 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 at vger.kernel.org
> Reported-by: Mikulas Patocka <mpatocka at redhat.com>
> Signed-off-by: Mike Snitzer <snitzer at redhat.com>
> ---
>  block/blk-integrity.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> Jens, please feel free to pick this up for 4.12 and I'll just make the
> dm-integrity commit Depends-on it once you've staged it.

OK, I'll commit it. I'll send out my pull request as soon as the merge
window opens, so you should not have any delays.

-- 
Jens Axboe