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Subject[PATCH 4/7] block: gendisk integrity wrapper
Date
This is a wrapper for accessing a gendisk's integrity bits.  It allows
the integrity support in MD to be compiled with BLK_DEV_INTEGRITY off.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
---
include/linux/blkdev.h | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index eec0842..ca08439 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1027,6 +1027,11 @@ static inline struct blk_integrity *bdev_get_integrity(struct block_device *bdev
return bdev->bd_disk->integrity;
}

+static inline struct blk_integrity *blk_get_integrity(struct gendisk *disk)
+{
+ return disk->integrity;
+}
+
static inline unsigned int bdev_get_tag_size(struct block_device *bdev)
{
struct blk_integrity *bi = bdev_get_integrity(bdev);
@@ -1069,6 +1074,7 @@ static inline int blk_integrity_rq(struct request *rq)
#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_get_integrity(a) (0)
#define bdev_get_tag_size(a) (0)
#define blk_integrity_compare(a, b) (0)
#define blk_integrity_register(a, b) (0)
--
1.6.0.2


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