suse man page for blk_limits_io_min

BLK_LIMITS_IO_MIN(9)						   Block Devices					      BLK_LIMITS_IO_MIN(9)

NAME
       blk_limits_io_min - set minimum request size for a device

SYNOPSIS
       void blk_limits_io_min(struct queue_limits * limits, unsigned int min);

ARGUMENTS
       limits
	   the queue limits

       min
	   smallest I/O size in bytes

DESCRIPTION
       Some devices have an internal block size bigger than the reported hardware sector size. This function can be used to signal the smallest
       I/O the device can perform without incurring a performance penalty.

COPYRIGHT
Kernel Hackers Manual 2.6.					     July 2010						      BLK_LIMITS_IO_MIN(9)