1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>idr_destroy</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="idr.html" title="idr/ida Functions"><link rel="prev" href="API-idr-remove.html" title="idr_remove"><link rel="next" href="API-idr-for-each.html" title="idr_for_each"></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">idr_destroy</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-idr-remove.html">Prev</a>&#160;</td><th width="60%" align="center">idr/ida Functions</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-idr-for-each.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-idr-destroy"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>idr_destroy &#8212; 
2     release all cached layers within an idr tree
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">void <b class="fsfunc">idr_destroy </b>(</code></td><td>struct idr * <var class="pdparam">idp</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1123615804"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>idp</code></em></span></dt><dd><p>
4     idr handle
5    </p></dd></dl></div></div><div class="refsect1"><a name="idp1123617396"></a><h2>Description</h2><p>
6   Free all id mappings and all idp_layers.  After this function, <em class="parameter"><code>idp</code></em> is
7   completely unused and can be freed / recycled.  The caller is
8   responsible for ensuring that no one else accesses <em class="parameter"><code>idp</code></em> during or after
9   <code class="function">idr_destroy</code>.
10   </p><p>
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12   A typical clean-up sequence for objects stored in an idr tree will use
13   <code class="function">idr_for_each</code> to free all objects, if necessary, then <code class="function">idr_destroy</code> to
14   free up the id mappings and cached idr_layers.
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