'\" t
.\"     Title: alloc_vm_area
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: March 2017
.\"    Manual: Memory Management in Linux
.\"    Source: Kernel Hackers Manual 4.10.7
.\"  Language: English
.\"
.TH "ALLOC_VM_AREA" "9" "March 2017" "Kernel Hackers Manual 4\&.10\&" "Memory Management in Linux"
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.SH "NAME"
alloc_vm_area \- allocate a range of kernel address space
.SH "SYNOPSIS"
.HP \w'struct\ vm_struct\ *\ alloc_vm_area('u
.BI "struct vm_struct * alloc_vm_area(size_t\ " "size" ", pte_t\ **\ " "ptes" ");"
.SH "ARGUMENTS"
.PP
\fIsize\fR
.RS 4
size of the area
.RE
.PP
\fIptes\fR
.RS 4
returns the PTEs for the address space
.RE
.SH "RETURN"
.PP
NULL on failure, vm_struct on success
.PP
This function reserves a range of kernel address space, and allocates pagetables to map that range\&. No actual mappings are created\&.
.PP
If
\fIptes\fR
is non\-NULL, pointers to the PTEs (in init_mm) allocated for the VM area are returned\&.
.SH "COPYRIGHT"
.br