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 AT redhat.com>
           Author.

       William Cohen <wcohen AT redhat.com>
           Author.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                      TRACE_BLOCK_SPLIT(9)