blk_mangle_minor(9) centos man page | unix.com

BLK_MANGLE_MINOR(9)						   Block Devices					       BLK_MANGLE_MINOR(9)

NAME
       blk_mangle_minor - scatter minor numbers apart

SYNOPSIS
       int blk_mangle_minor(int minor);

ARGUMENTS
       minor
	   minor number to mangle

DESCRIPTION
       Scatter consecutively allocated minor number apart if MANGLE_DEVT is enabled. Mangling twice gives the original value.

RETURNS
       Mangled value.

CONTEXT
       Don't care.

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Kernel Hackers Manual 3.10					     June 2014						       BLK_MANGLE_MINOR(9)