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authorMartin K. Petersen <martin.petersen@oracle.com>2008-10-02 12:47:49 -0400
committerJens Axboe <jens.axboe@oracle.com>2008-10-09 02:56:22 -0400
commitb02739b01c5309d74a59859f2ce92c931d1f1955 (patch)
treed435454dba5ebb10233069f9f4547df3a140ef28 /include/linux
parentad7fce93147d32ae53d25d9ea1a8ba31a239deee (diff)
block: gendisk integrity wrapper
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> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/blkdev.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 00d340b0f758..a92d9e4ea96e 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1022,6 +1022,11 @@ struct blk_integrity *bdev_get_integrity(struct block_device *bdev)
1022 return bdev->bd_disk->integrity; 1022 return bdev->bd_disk->integrity;
1023} 1023}
1024 1024
1025static inline struct blk_integrity *blk_get_integrity(struct gendisk *disk)
1026{
1027 return disk->integrity;
1028}
1029
1025static inline int blk_integrity_rq(struct request *rq) 1030static inline int blk_integrity_rq(struct request *rq)
1026{ 1031{
1027 if (rq->bio == NULL) 1032 if (rq->bio == NULL)
@@ -1036,6 +1041,7 @@ static inline int blk_integrity_rq(struct request *rq)
1036#define blk_rq_count_integrity_sg(a) (0) 1041#define blk_rq_count_integrity_sg(a) (0)
1037#define blk_rq_map_integrity_sg(a, b) (0) 1042#define blk_rq_map_integrity_sg(a, b) (0)
1038#define bdev_get_integrity(a) (0) 1043#define bdev_get_integrity(a) (0)
1044#define blk_get_integrity(a) (0)
1039#define blk_integrity_compare(a, b) (0) 1045#define blk_integrity_compare(a, b) (0)
1040#define blk_integrity_register(a, b) (0) 1046#define blk_integrity_register(a, b) (0)
1041#define blk_integrity_unregister(a) do { } while (0); 1047#define blk_integrity_unregister(a) do { } while (0);