'\" t
.\"     Title: blk_rq_map_kern
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: Block Devices
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "BLK_RQ_MAP_KERN" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Block Devices"
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.SH "NAME"
blk_rq_map_kern \- map kernel data to a request, for REQ_TYPE_BLOCK_PC usage
.SH "SYNOPSIS"
.HP \w'int\ blk_rq_map_kern('u
.BI "int blk_rq_map_kern(struct\ request_queue\ *\ " "q" ", struct\ request\ *\ " "rq" ", void\ *\ " "kbuf" ", unsigned\ int\ " "len" ", gfp_t\ " "gfp_mask" ");"
.SH "ARGUMENTS"
.PP
\fIq\fR
.RS 4
request queue where request should be inserted
.RE
.PP
\fIrq\fR
.RS 4
request to fill
.RE
.PP
\fIkbuf\fR
.RS 4
the kernel buffer
.RE
.PP
\fIlen\fR
.RS 4
length of user data
.RE
.PP
\fIgfp_mask\fR
.RS 4
memory allocation flags
.RE
.SH "DESCRIPTION"
.PP
Data will be mapped directly if possible\&. Otherwise a bounce buffer is used\&. Can be called multiple times to append multiple buffers\&.
.SH "COPYRIGHT"
.br