trace_block_split (9) Linux Manual Page
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.