1DISK_MAP_SECTOR_RCU(9) Block Devices DISK_MAP_SECTOR_RCU(9)
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6 disk_map_sector_rcu - map sector to partition
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9 struct hd_struct * disk_map_sector_rcu(struct gendisk * disk,
10 sector_t sector);
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13 disk
14 gendisk of interest
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16 sector
17 sector to map
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20 Find out which partition sector maps to on disk. This is primarily used
21 for stats accounting.
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24 RCU read locked. The returned partition pointer is valid only while
25 preemption is disabled.
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28 Found partition on success, part0 is returned if no partition matches
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31Kernel Hackers Manual 2.6. November 2011 DISK_MAP_SECTOR_RCU(9)