'\" t
.\"     Title: blk_add_trace_bio_remap
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: June 2017
.\"    Manual: Block Devices
.\"    Source: Kernel Hackers Manual 4.11.3
.\"  Language: English
.\"
.TH "BLK_ADD_TRACE_BIO_RE" "9" "June 2017" "Kernel Hackers Manual 4\&.11\&" "Block Devices"
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.SH "NAME"
blk_add_trace_bio_remap \- Add a trace for a bio\-remap operation
.SH "SYNOPSIS"
.HP \w'void\ blk_add_trace_bio_remap('u
.BI "void blk_add_trace_bio_remap(void\ *\ " "ignore" ", struct\ request_queue\ *\ " "q" ", struct\ bio\ *\ " "bio" ", dev_t\ " "dev" ", sector_t\ " "from" ");"
.SH "ARGUMENTS"
.PP
\fIvoid * ignore\fR
.RS 4
trace callback data parameter (not used)
.RE
.PP
\fIstruct request_queue * q\fR
.RS 4
queue the io is for
.RE
.PP
\fIstruct bio * bio\fR
.RS 4
the source bio
.RE
.PP
\fIdev_t dev\fR
.RS 4
target device
.RE
.PP
\fIsector_t from\fR
.RS 4
source sector
.RE
.SH "DESCRIPTION"
.PP
Device mapper or raid target sometimes need to split a bio because it spans a stripe (or similar)\&. Add a trace for that action\&.
.SH "COPYRIGHT"
.br