get_capacity

Name:get_capacity

Proto:static inline sector_t get_capacity(struct gendisk *disk)

Type:sector_t

Parameter:

Type	Parameter	Name
struct gendisk *	disk

476

Return * nr_sects is protected by sequence counter. One might extend a * partition while IO is happening to it and update of nr_sects * can be non-atomic on 32bit machines with 64bit sector_t.

**Caller**
Name	Describe
generic_make_request_checks
register_disk
printk_all_partitions	print a full list of all partitions - intended for places where the root* filesystem can't be mounted and thus to give the victim some idea of what* went wrong
show_partition
blk_add_partition
cmdline_partition	Purpose: allocate cmdline partitions.* Returns:* -1 if unable to read the partition table* 0 if this isn't our partition table* 1 if successful
blkdev_nr_zones	lkdev_nr_zones - Get number of zones@disk: Target gendisk Return the total number of zones of a zoned block device. For a block* device without zone capabilities, the number of zones is always 0.
blkdev_report_zones	lkdev_report_zones - Get zones information@bdev: Target block device@sector: Sector from which to report zones@nr_zones: Maximum number of zones to report@cb: Callback function called for each reported zone@data: Private data for the callback
blkdev_allow_reset_all_zones
blkdev_zone_mgmt	lkdev_zone_mgmt - Execute a zone management operation on a range of zones@bdev: Target block device@op: Operation to be performed on the zones@sector: Start sector of the first zone to operate on@nr_sectors: Number of sectors, should be at least the
blk_revalidate_zone_cb	Helper function to check the validity of zones of a zoned block device.
guard_bio_eod	This allows us to do IO even on the odd last sectors* of a device, even if the block size is some multiple* of the physical sector size
check_disk_size_change	heck_disk_size_change - checks for disk size change and adjusts bdev size
bdev_disk_changed
__blkdev_get	d_mutex locking:* mutex_lock(part->bd_mutex)* mutex_lock_nested(whole->bd_mutex, 1)

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