1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>remap_vmalloc_range</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="The Linux Kernel API"><link rel="up" href="ch04s03.html" title="More Memory Management Functions"><link rel="prev" href="API-remap-vmalloc-range-partial.html" title="remap_vmalloc_range_partial"><link rel="next" href="API-alloc-vm-area.html" title="alloc_vm_area"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">remap_vmalloc_range</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-remap-vmalloc-range-partial.html">Prev</a>&#160;</td><th width="60%" align="center">More Memory Management Functions</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-alloc-vm-area.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-remap-vmalloc-range"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>remap_vmalloc_range &#8212; 
2     map vmalloc pages to userspace
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">int <b class="fsfunc">remap_vmalloc_range </b>(</code></td><td>struct vm_area_struct * <var class="pdparam">vma</var>, </td></tr><tr><td>&#160;</td><td>void * <var class="pdparam">addr</var>, </td></tr><tr><td>&#160;</td><td>unsigned long <var class="pdparam">pgoff</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1124496220"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>vma</code></em></span></dt><dd><p>
4     vma to cover (map full range of vma)
5    </p></dd><dt><span class="term"><em class="parameter"><code>addr</code></em></span></dt><dd><p>
6     vmalloc memory
7    </p></dd><dt><span class="term"><em class="parameter"><code>pgoff</code></em></span></dt><dd><p>
8     number of pages into addr before first page to map
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1124499908"></a><h2>Returns</h2><p>
10   0 for success, -Exxx on failure
11   </p><p>
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13   This function checks that addr is a valid vmalloc'ed area, and
14   that it is big enough to cover the vma. Will return failure if
15   that criteria isn't met.
16   </p><p>
17
18   Similar to <code class="function">remap_pfn_range</code> (see mm/memory.c)
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