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. November 2013 DISK_MAP_SECTOR_RCU(9)