Driver core: convert block from raw kobjects to core devices

[linux-3.10.git] / include / linux / genhd.h

diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index 8c43d70326127df3d241cd75f2e204d8a809b0f2..1dbea0ac5693049885c7c8ec33ec158dad1cb4bc 100644 (file)
--- 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. */
@@ -67,7 +77,6 @@ struct partition {
 #include <linux/string.h>
 #include <linux/fs.h>
 #include <linux/workqueue.h>
-#include <linux/bsg.h>
 
 struct partition {
        unsigned char boot_ind;         /* 0x80 - active */
@@ -85,14 +94,13 @@ 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;
 #ifdef CONFIG_FAIL_MAKE_REQUEST
        int make_it_fail;
 #endif
-       struct bsg_class_device bsg_dev;
 };
 
 #define GENHD_FL_REMOVABLE                     1
@@ -119,15 +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;
 
@@ -145,13 +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:
  *
@@ -266,7 +266,7 @@ static inline void set_capacity(struct gendisk *disk, sector_t size)
 
 #ifdef CONFIG_SOLARIS_X86_PARTITION
 
-#define SOLARIS_X86_NUMSLICE   8
+#define SOLARIS_X86_NUMSLICE   16
 #define SOLARIS_X86_VTOC_SANE  (0x600DDEEEUL)
 
 struct solaris_x86_slice {
@@ -413,7 +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);
@@ -425,12 +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)
 {
@@ -443,6 +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