blk_queue_bounce_limit man page on Scientific

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BLK_QUEUE_BOUNCE_LIM(9)		 Block Devices	       BLK_QUEUE_BOUNCE_LIM(9)

NAME
       blk_queue_bounce_limit - set bounce buffer limit for queue

SYNOPSIS
       void blk_queue_bounce_limit(struct request_queue * q, u64 dma_mask);

ARGUMENTS
       q
	   the request queue for the device

       dma_mask
	   the maximum address the device can handle

DESCRIPTION
       Different hardware can have different requirements as to what pages it
       can do I/O directly to. A low level driver can call
       blk_queue_bounce_limit to have lower memory pages allocated as bounce
       buffers for doing I/O to pages residing above dma_mask.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013	       BLK_QUEUE_BOUNCE_LIM(9)
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