DISK_MAP_SECTOR_RCU
Section: Block Devices (9)
Updated: February 2011
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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
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