suse man page for trace_block_split

TRACE_BLOCK_SPLIT(9)						     Block IO						      TRACE_BLOCK_SPLIT(9)

NAME
       trace_block_split - split a single bio struct into two bio structs

SYNOPSIS
       void trace_block_split(struct request_queue * q, struct bio * bio, unsigned int new_sector);

ARGUMENTS
       q
	   queue containing the bio

       bio
	   block operation being split

       new_sector
	   The starting sector for the new bio

DESCRIPTION
       The bio request bio in request queue q needs to be split into two bio requests. The newly created bio request starts at new_sector. This
       split may be required due to hardware limitation such as operation crossing device boundaries in a RAID system.

AUTHORS
       Jason Baron <jbaron@redhat.com>
	   Author.

       William Cohen <wcohen@redhat.com>
	   Author.

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