#define dev_to_part(device) container_of((device), struct hd_struct, __dev)
#define disk_to_dev(disk) (&(disk)->part0.__dev)
#define part_to_dev(part) (&((part)->__dev))
+#define alias_name(disk) ((disk)->alias ? (disk)->alias : \
+ (disk)->disk_name)
extern struct device_type part_type;
extern struct kobject *block_depr;
#define DISK_MAX_PARTS 256
#define DISK_NAME_LEN 32
+#define ALIAS_LEN 256
#include <linux/major.h>
#include <linux/device.h>
#define GENHD_FL_EXT_DEVT 64 /* allow extended devt */
#define GENHD_FL_NATIVE_CAPACITY 128
#define GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE 256
+#define GENHD_FL_NO_PART_SCAN 512
enum {
DISK_EVENT_MEDIA_CHANGE = 1 << 0, /* media changed */
* disks that can't be partitioned. */
char disk_name[DISK_NAME_LEN]; /* name of major driver */
+ char *alias; /* alias name of disk */
char *(*devnode)(struct gendisk *gd, mode_t *mode);
unsigned int events; /* supported events */
return disk->minors;
}
-static inline bool disk_partitionable(struct gendisk *disk)
+static inline bool disk_part_scan_enabled(struct gendisk *disk)
{
- return disk_max_parts(disk) > 1;
+ return disk_max_parts(disk) > 1 &&
+ !(disk->flags & GENHD_FL_NO_PART_SCAN);
}
static inline dev_t disk_devt(struct gendisk *disk)