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| 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¶
struct gendisk * disk
gendisk of interest
sector_t 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.
RETURN¶
Found partition on success, part0 is returned if no partition matches
COPYRIGHT¶
| July 2017 | Kernel Hackers Manual 4.11 |