sector_t start_sect;
sector_t nr_sects;
struct kobject kobj;
- unsigned reads, read_sectors, writes, write_sectors;
+ unsigned ios[2], sectors[2]; /* READs and WRITEs */
int policy, partno;
};
#define GENHD_FL_SUPPRESS_PARTITION_INFO 32
struct disk_stats {
- unsigned read_sectors, write_sectors;
- unsigned reads, writes;
- unsigned read_merges, write_merges;
- unsigned read_ticks, write_ticks;
+ unsigned sectors[2]; /* READs and WRITEs */
+ unsigned ios[2];
+ unsigned merges[2];
+ unsigned ticks[2];
unsigned io_ticks;
unsigned time_in_queue;
};
int policy;
atomic_t sync_io; /* RAID */
- unsigned long stamp, stamp_idle;
+ unsigned long stamp;
int in_flight;
#ifdef CONFIG_SMP
struct disk_stats *dkstats;
#endif
};
+/* 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:
*
extern void disk_round_stats(struct gendisk *disk);
/* drivers/block/genhd.c */
+extern int get_blkdev_list(char *, int);
extern void add_disk(struct gendisk *disk);
extern void del_gendisk(struct gendisk *gp);
extern void unlink_gendisk(struct gendisk *gp);
extern void add_partition(struct gendisk *, int, sector_t, sector_t);
extern void delete_partition(struct gendisk *, int);
+extern struct gendisk *alloc_disk_node(int minors, int node_id);
extern struct gendisk *alloc_disk(int minors);
extern struct kobject *get_disk(struct gendisk *disk);
extern void put_disk(struct gendisk *disk);