21 #define disk_to_dev(disk)	(&(disk)->part0.__dev)  argument
240 static inline int disk_max_parts(struct gendisk *disk)  in disk_max_parts()  argument
242 	if (disk->flags & GENHD_FL_EXT_DEVT)  in disk_max_parts()
244 	return disk->minors;  in disk_max_parts()
247 static inline bool disk_part_scan_enabled(struct gendisk *disk)  in disk_part_scan_enabled()  argument
249 	return disk_max_parts(disk) > 1 &&  in disk_part_scan_enabled()
250 		!(disk->flags & GENHD_FL_NO_PART_SCAN);  in disk_part_scan_enabled()
253 static inline dev_t disk_devt(struct gendisk *disk)  in disk_devt()  argument
255 	return disk_to_dev(disk)->devt;  in disk_devt()
263 extern struct hd_struct *disk_get_part(struct gendisk *disk, int partno);
280 	struct gendisk		*disk;  member
287 				 struct gendisk *disk, unsigned int flags);
291 extern struct hd_struct *disk_map_sector_rcu(struct gendisk *disk,
402 static inline struct partition_meta_info *alloc_part_info(struct gendisk *disk)  in alloc_part_info()  argument
404 	if (disk)  in alloc_part_info()
406 				    GFP_KERNEL, disk->node_id);  in alloc_part_info()
419 extern void add_disk(struct gendisk *disk);
422 extern struct block_device *bdget_disk(struct gendisk *disk, int partno);
425 extern void set_disk_ro(struct gendisk *disk, int flag);
427 static inline int get_disk_ro(struct gendisk *disk)  in get_disk_ro()  argument
429 	return disk->part0.policy;  in get_disk_ro()
432 extern void disk_block_events(struct gendisk *disk);
433 extern void disk_unblock_events(struct gendisk *disk);
434 extern void disk_flush_events(struct gendisk *disk, unsigned int mask);
435 extern unsigned int disk_clear_events(struct gendisk *disk, unsigned int mask);
438 extern void add_disk_randomness(struct gendisk *disk);
439 extern void rand_initialize_disk(struct gendisk *disk);
445 static inline sector_t get_capacity(struct gendisk *disk)  in get_capacity()  argument
447 	return disk->part0.nr_sects;  in get_capacity()
449 static inline void set_capacity(struct gendisk *disk, sector_t size)  in set_capacity()  argument
451 	disk->part0.nr_sects = size;  in set_capacity()
606 extern int disk_expand_part_tbl(struct gendisk *disk, int target);
607 extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev);
608 extern int invalidate_partitions(struct gendisk *disk, struct block_device *bdev);
609 extern struct hd_struct * __must_check add_partition(struct gendisk *disk,
620 extern struct kobject *get_disk(struct gendisk *disk);
621 extern void put_disk(struct gendisk *disk);