block: revert part of d7533ad0e132f92e75c1b2eb7c26387b25a583c1

We need bdev_get_integrity() to support the pending md/dm patches.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index bfc18e497c7..bc693f5c388 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1016,6 +1016,12 @@ extern int blk_integrity_compare(struct block_device *, struct block_device *);
 extern int blk_rq_map_integrity_sg(struct request *, struct scatterlist *);
 extern int blk_rq_count_integrity_sg(struct request *);
 
+static inline
+struct blk_integrity *bdev_get_integrity(struct block_device *bdev)
+{
+        return bdev->bd_disk->integrity;
+}
+
 static inline int blk_integrity_rq(struct request *rq)
 {
         if (rq->bio == NULL)
@@ -1029,6 +1035,7 @@ static inline int blk_integrity_rq(struct request *rq)
 #define blk_integrity_rq(rq)                    (0)
 #define blk_rq_count_integrity_sg(a)            (0)
 #define blk_rq_map_integrity_sg(a, b)           (0)
+#define bdev_get_integrity(a)                   (0)
 #define blk_integrity_compare(a, b)             (0)
 #define blk_integrity_register(a, b)            (0)
 #define blk_integrity_unregister(a)             do { } while (0);