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Diffstat (limited to 'include')
-rw-r--r--include/linux/genhd.h16
1 files changed, 8 insertions, 8 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index ecf649c3dee..04524c213de 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -58,6 +58,8 @@ enum {
UNIXWARE_PARTITION = 0x63, /* Same as GNU_HURD and SCO Unix */
};
+#define DISK_MAX_PARTS 256
+
#include <linux/major.h>
#include <linux/device.h>
#include <linux/smp.h>
@@ -112,6 +114,7 @@ struct hd_struct {
#define GENHD_FL_CD 8
#define GENHD_FL_UP 16
#define GENHD_FL_SUPPRESS_PARTITION_INFO 32
+#define GENHD_FL_EXT_DEVT 64 /* allow extended devt */
#define BLK_SCSI_MAX_CMDS (256)
#define BLK_SCSI_CMD_PER_LONG (BLK_SCSI_MAX_CMDS / (sizeof(long) * 8))
@@ -129,15 +132,13 @@ struct disk_part_tbl {
};
struct gendisk {
- /* major, first_minor, minors and ext_minors are input
- * parameters only, don't use directly. Use disk_devt() and
- * disk_max_parts().
+ /* major, first_minor and minors are input parameters only,
+ * don't use directly. Use disk_devt() and disk_max_parts().
*/
int major; /* major number of driver */
int first_minor;
int minors; /* maximum number of minors, =1 for
* disks that can't be partitioned. */
- int ext_minors; /* number of extended dynamic minors */
char disk_name[32]; /* name of major driver */
@@ -180,7 +181,9 @@ static inline struct gendisk *part_to_disk(struct hd_struct *part)
static inline int disk_max_parts(struct gendisk *disk)
{
- return disk->minors + disk->ext_minors;
+ if (disk->flags & GENHD_FL_EXT_DEVT)
+ return DISK_MAX_PARTS;
+ return disk->minors;
}
static inline bool disk_partitionable(struct gendisk *disk)
@@ -527,9 +530,6 @@ extern void printk_all_partitions(void);
extern struct gendisk *alloc_disk_node(int minors, int node_id);
extern struct gendisk *alloc_disk(int minors);
-extern struct gendisk *alloc_disk_ext_node(int minors, int ext_minrs,
- int node_id);
-extern struct gendisk *alloc_disk_ext(int minors, int ext_minors);
extern struct kobject *get_disk(struct gendisk *disk);
extern void put_disk(struct gendisk *disk);
extern void blk_register_region(dev_t devt, unsigned long range,