'\" t
.\"     Title: zerocopy_sg_from_iter
.\"    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: Linux Networking
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "ZEROCOPY_SG_FROM_ITE" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Linux Networking"
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.SH "NAME"
zerocopy_sg_from_iter \- Build a zerocopy datagram from an iov_iter
.SH "SYNOPSIS"
.HP \w'int\ zerocopy_sg_from_iter('u
.BI "int zerocopy_sg_from_iter(struct\ sk_buff\ *\ " "skb" ", struct\ iov_iter\ *\ " "from" ");"
.SH "ARGUMENTS"
.PP
\fIskb\fR
.RS 4
buffer to copy
.RE
.PP
\fIfrom\fR
.RS 4
the source to copy from
.RE
.SH "DESCRIPTION"
.PP
The function will first copy up to headlen, and then pin the userspace pages and build frags through them\&.
.PP
Returns 0, \-EFAULT or \-EMSGSIZE\&.
.SH "COPYRIGHT"
.br