'\" t
.\"     Title: trace_block_split
.\"    Author: 
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Block IO
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "TRACE_BLOCK_SPLIT" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Block IO"
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.SH "NAME"
trace_block_split \- split a single bio struct into two bio structs
.SH "SYNOPSIS"
.HP \w'void\ trace_block_split('u
.BI "void trace_block_split(struct\ request_queue\ *\ " "q" ", struct\ bio\ *\ " "bio" ", unsigned\ int\ " "new_sector" ");"
.SH "ARGUMENTS"
.PP
\fIq\fR
.RS 4
queue containing the bio
.RE
.PP
\fIbio\fR
.RS 4
block operation being split
.RE
.PP
\fInew_sector\fR
.RS 4
The starting sector for the new bio
.RE
.SH "DESCRIPTION"
.PP
The bio request
\fIbio\fR
in request queue
\fIq\fR
needs to be split into two bio requests\&. The newly created
\fIbio\fR
request starts at
\fInew_sector\fR\&. This split may be required due to hardware limitation such as operation crossing device boundaries in a RAID system\&.
.SH "AUTHORS"
.PP
\fBJason Baron\fR <\&jbaron@redhat.com\&>
.RS 4
Author.
.RE
.PP
\fBWilliam Cohen\fR <\&wcohen@redhat.com\&>
.RS 4
Author.
.RE
.SH "COPYRIGHT"
.br