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block: Switch blk_integrity_compare from bdev to gendisk

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The DM and MD integrity support now depends on being able to use
gendisks instead of block_devices when comparing integrity profiles.
Change function parameters accordingly.

Also update comparison logic so that two NULL profiles are a valid
configuration.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Martin K. Petersen
2008-10-01 03:38:39 -04:00
committed by Jens Axboe
parent 0c032ab889
commit ad7fce9314
2 changed files with 15 additions and 15 deletions
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2
include/linux/blkdev.h
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@@ -1012,7 +1012,7 @@ struct blk_integrity {
extern int blk_integrity_register(struct gendisk *, struct blk_integrity *);
extern void blk_integrity_unregister(struct gendisk *);
extern int blk_integrity_compare(struct block_device *, struct block_device *);
extern int blk_integrity_compare(struct gendisk *, struct gendisk *);
extern int blk_rq_map_integrity_sg(struct request *, struct scatterlist *);
extern int blk_rq_count_integrity_sg(struct request *);