1BLK_QUEUE_PHYSICAL_B(9) Block Devices BLK_QUEUE_PHYSICAL_B(9)
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6 blk_queue_physical_block_size - set physical block size for the queue
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9 void blk_queue_physical_block_size(struct request_queue * q,
10 unsigned int size);
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13 q
14 the request queue for the device
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16 size
17 the physical block size, in bytes
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20 This should be set to the lowest possible sector size that the hardware
21 can operate on without reverting to read-modify-write operations.
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24Kernel Hackers Manual 2.6. November 2011 BLK_QUEUE_PHYSICAL_B(9)