diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/genhd.h | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h index a47b8025d39..1dbea0ac569 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -10,9 +10,19 @@ */ #include <linux/types.h> +#include <linux/kdev_t.h> #ifdef CONFIG_BLOCK +#define kobj_to_dev(k) container_of(k, struct device, kobj) +#define dev_to_disk(device) container_of(device, struct gendisk, dev) +#define dev_to_part(device) container_of(device, struct hd_struct, dev) + +extern struct device_type disk_type; +extern struct device_type part_type; +extern struct kobject *block_depr; +extern struct class block_class; + enum { /* These three have identical behaviour; use the second one if DOS FDISK gets confused about extended/logical partitions starting past cylinder 1023. */ @@ -84,7 +94,7 @@ struct partition { struct hd_struct { sector_t start_sect; sector_t nr_sects; - struct kobject kobj; + struct device dev; struct kobject *holder_dir; unsigned ios[2], sectors[2]; /* READs and WRITEs */ int policy, partno; @@ -117,15 +127,14 @@ struct gendisk { * disks that can't be partitioned. */ char disk_name[32]; /* name of major driver */ struct hd_struct **part; /* [indexed by minor] */ - int part_uevent_suppress; struct block_device_operations *fops; struct request_queue *queue; void *private_data; sector_t capacity; int flags; - struct device *driverfs_dev; - struct kobject kobj; + struct device *driverfs_dev; // FIXME: remove + struct device dev; struct kobject *holder_dir; struct kobject *slave_dir; @@ -143,13 +152,6 @@ struct gendisk { struct work_struct async_notify; }; -/* Structure for sysfs attributes on block devices */ -struct disk_attribute { - struct attribute attr; - ssize_t (*show)(struct gendisk *, char *); - ssize_t (*store)(struct gendisk *, const char *, size_t); -}; - /* * Macros to operate on percpu disk statistics: * @@ -411,7 +413,8 @@ struct unixware_disklabel { #define ADDPART_FLAG_RAID 1 #define ADDPART_FLAG_WHOLEDISK 2 -char *disk_name (struct gendisk *hd, int part, char *buf); +extern dev_t blk_lookup_devt(const char *name); +extern char *disk_name (struct gendisk *hd, int part, char *buf); extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev); extern void add_partition(struct gendisk *, int, sector_t, sector_t, int); @@ -423,12 +426,12 @@ extern struct gendisk *alloc_disk(int minors); extern struct kobject *get_disk(struct gendisk *disk); extern void put_disk(struct gendisk *disk); extern void genhd_media_change_notify(struct gendisk *disk); -extern void blk_register_region(dev_t dev, unsigned long range, +extern void blk_register_region(dev_t devt, unsigned long range, struct module *module, struct kobject *(*probe)(dev_t, int *, void *), int (*lock)(dev_t, void *), void *data); -extern void blk_unregister_region(dev_t dev, unsigned long range); +extern void blk_unregister_region(dev_t devt, unsigned long range); static inline struct block_device *bdget_disk(struct gendisk *disk, int index) { @@ -441,6 +444,12 @@ static inline struct block_device *bdget_disk(struct gendisk *disk, int index) static inline void printk_all_partitions(void) { } +static inline dev_t blk_lookup_devt(const char *name) +{ + dev_t devt = MKDEV(0, 0); + return devt; +} + #endif /* CONFIG_BLOCK */ #endif |