DISK_MAP_SECTOR_RCU(9) Block Devices DISK_MAP_SECTOR_RCU(9)
NAME
disk_map_sector_rcu - map sector to partition
SYNOPSIS
struct hd_struct * disk_map_sector_rcu(struct gendisk * disk, sector_t sector);
ARGUMENTS
disk
gendisk of interest
sector
sector to map
DESCRIPTION
Find out which partition sector maps to on disk. This is primarily used for stats accounting.
CONTEXT
RCU read locked. The returned partition pointer is valid only while preemption is disabled.
RETURNS
Found partition on success, part0 is returned if no partition matches
COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 DISK_MAP_SECTOR_RCU(9)
