2240 extern struct block_device *bdgrab(struct block_device *bdev);
2246 extern int sync_blockdev(struct block_device *bdev);
2250 extern int thaw_bdev(struct block_device *bdev, struct super_block *sb);
2255 static inline int sync_blockdev(struct block_device *bdev) { return 0; }  in sync_blockdev()  argument
2256 static inline void kill_bdev(struct block_device *bdev) {}  in kill_bdev()  argument
2257 static inline void invalidate_bdev(struct block_device *bdev) {}  in invalidate_bdev()  argument
2264 static inline int thaw_bdev(struct block_device *bdev, struct super_block *sb)  in thaw_bdev()  argument
2285 extern int blkdev_get(struct block_device *bdev, fmode_t mode, void *holder);
2290 extern void blkdev_put(struct block_device *bdev, fmode_t mode);
2292 extern int bd_link_disk_holder(struct block_device *bdev, struct gendisk *disk);
2293 extern void bd_unlink_disk_holder(struct block_device *bdev,
2296 static inline int bd_link_disk_holder(struct block_device *bdev,  in bd_link_disk_holder()  argument
2301 static inline void bd_unlink_disk_holder(struct block_device *bdev,  in bd_unlink_disk_holder()  argument
2338 extern const char *bdevname(struct block_device *bdev, char *buffer);
2364 				   struct block_device *bdev);
2665 			     struct block_device *bdev, struct iov_iter *iter,
2757 extern struct super_block *get_active_super(struct block_device *bdev);