diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 08:34:42 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-01-25 08:35:13 -0800 |
| commit | df8dc74e8a383eaf2d9b44b80a71ec6f0e52b42e (patch) | |
| tree | bc3799a43e8b94fa84b32e37b1c124d5e4868f50 /include/linux/genhd.h | |
| parent | 556a169dab38b5100df6f4a45b655dddd3db94c1 (diff) | |
| parent | 4a3ad20ccd8f4d2a0535cf98fa83f7b561ba59a9 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
This can be broken down into these major areas:
- Documentation updates (language translations and fixes, as
well as kobject and kset documenatation updates.)
- major kset/kobject/ktype rework and fixes. This cleans up the
kset and kobject and ktype relationship and architecture,
making sense of things now, and good documenation and samples
are provided for others to use. Also the attributes for
kobjects are much easier to handle now. This cleaned up a LOT
of code all through the kernel, making kobjects easier to use
if you want to.
- struct bus_type has been reworked to now handle the lifetime
rules properly, as the kobject is properly dynamic.
- struct driver has also been reworked, and now the lifetime
issues are resolved.
- the block subsystem has been converted to use struct device
now, and not "raw" kobjects. This patch has been in the -mm
tree for over a year now, and finally all the issues are
worked out with it. Older distros now properly work with new
kernels, and no userspace updates are needed at all.
- nozomi driver is added. This has also been in -mm for a long
time, and many people have asked for it to go in. It is now
in good enough shape to do so.
- lots of class_device conversions to use struct device instead.
The tree is almost all cleaned up now, only SCSI and IB is the
remaining code to fix up...
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: (196 commits)
Driver core: coding style fixes
Kobject: fix coding style issues in kobject c files
Kobject: fix coding style issues in kobject.h
Driver core: fix coding style issues in device.h
spi: use class iteration api
scsi: use class iteration api
rtc: use class iteration api
power supply : use class iteration api
ieee1394: use class iteration api
Driver Core: add class iteration api
Driver core: Cleanup get_device_parent() in device_add() and device_move()
UIO: constify function pointer tables
Driver Core: constify the name passed to platform_device_register_simple
driver core: fix build with SYSFS=n
sysfs: make SYSFS_DEPRECATED depend on SYSFS
Driver core: use LIST_HEAD instead of call to INIT_LIST_HEAD in __init
kobject: add sample code for how to use ksets/ktypes/kobjects
kobject: add sample code for how to use kobjects in a simple manner.
kobject: update the kobject/kset documentation
kobject: remove old, outdated documentation.
...
Diffstat (limited to 'include/linux/genhd.h')
| -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 a47b8025d399..1dbea0ac5693 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 |
