1DISK_MAP_SECTOR_RCU(9)           Block Devices          DISK_MAP_SECTOR_RCU(9)
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NAME

6       disk_map_sector_rcu - map sector to partition
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SYNOPSIS

9       struct hd_struct * disk_map_sector_rcu(struct gendisk * disk,
10                                              sector_t sector);
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ARGUMENTS

13       disk
14           gendisk of interest
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16       sector
17           sector to map
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DESCRIPTION

20       Find out which partition sector maps to on disk. This is primarily used
21       for stats accounting.
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CONTEXT

24       RCU read locked. The returned partition pointer is valid only while
25       preemption is disabled.
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RETURNS

28       Found partition on success, part0 is returned if no partition matches
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31Kernel Hackers Manual 3.10         June 2019            DISK_MAP_SECTOR_RCU(9)
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