| 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 always valid because its refcount is grabbed.
RETURNS¶
Found partition on success, part0 is returned if no partition matches or the matched partition is being deleted.
COPYRIGHT¶
| June 2023 | Kernel Hackers Manual 3.10 |