1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>reallocate_resource</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="ch09s03.html" title="Resources Management"><link rel="prev" href="API-request-resource-conflict.html" title="request_resource_conflict"><link rel="next" href="API-lookup-resource.html" title="lookup_resource"></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">reallocate_resource</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-request-resource-conflict.html">Prev</a>&#160;</td><th width="60%" align="center">Resources Management</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-lookup-resource.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-reallocate-resource"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>reallocate_resource &#8212; 
2     allocate a slot in the resource tree given range &amp; alignment. The resource will be relocated if the new size cannot be reallocated in the current location.
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">reallocate_resource </b>(</code></td><td>struct resource * <var class="pdparam">root</var>, </td></tr><tr><td>&#160;</td><td>struct resource * <var class="pdparam">old</var>, </td></tr><tr><td>&#160;</td><td>resource_size_t <var class="pdparam">newsize</var>, </td></tr><tr><td>&#160;</td><td>struct resource_constraint * <var class="pdparam">constraint</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1125877340"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>root</code></em></span></dt><dd><p>
4     root resource descriptor
5    </p></dd><dt><span class="term"><em class="parameter"><code>old</code></em></span></dt><dd><p>
6     resource descriptor desired by caller
7    </p></dd><dt><span class="term"><em class="parameter"><code>newsize</code></em></span></dt><dd><p>
8     new size of the resource descriptor
9    </p></dd><dt><span class="term"><em class="parameter"><code>constraint</code></em></span></dt><dd><p>
10     the size and alignment constraints to be met.
11    </p></dd></dl></div></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-request-resource-conflict.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="ch09s03.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-lookup-resource.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">request_resource_conflict</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">lookup_resource</span></td></tr></table></div></body></html>
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