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block: Make protection interval calculation generic 

Now that the protection interval has been detached from the sector size
we need to be able to handle sizes that are different from 4K and
512. Make the interval calculation generic.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Martin K. Petersen 2014-09-26 19:20:00 -04:00 committed by Jens Axboe
parent 3be91c4a3d
commit 5a2aa87305
1 changed files with 1 additions and 5 deletions
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6
block/bio-integrity.c
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@ -197,11 +197,7 @@ EXPORT_SYMBOL(bio_integrity_enabled);
static inline unsigned int bio_integrity_intervals(struct blk_integrity *bi,
unsigned int sectors)
{
/* At this point there are only 512b or 4096b DIF/EPP devices */
if (bi->interval == 4096)
return sectors >>= 3;
return sectors;
return sectors >> (ilog2(bi->interval) - 9);
}
static inline unsigned int bio_integrity_bytes(struct blk_integrity *bi,