1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>ipc_free</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="ipc.html#idp1124933524" title="IPC utilities"><link rel="prev" href="API-ipc-alloc.html" title="ipc_alloc"><link rel="next" href="API-ipc-rcu-alloc.html" title="ipc_rcu_alloc"></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">ipc_free</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-ipc-alloc.html">Prev</a> </td><th width="60%" align="center">IPC utilities</th><td width="20%" align="right"> <a accesskey="n" href="API-ipc-rcu-alloc.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-ipc-free"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ipc_free — 2 free ipc space 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">ipc_free </b>(</code></td><td>void * <var class="pdparam">ptr</var>, </td></tr><tr><td> </td><td>int <var class="pdparam">size</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1"><a name="idp1125044388"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>ptr</code></em></span></dt><dd><p> 4 pointer returned by ipc_alloc 5 </p></dd><dt><span class="term"><em class="parameter"><code>size</code></em></span></dt><dd><p> 6 size of block 7 </p></dd></dl></div></div><div class="refsect1"><a name="idp1125047012"></a><h2>Description</h2><p> 8 Free a block created with <code class="function">ipc_alloc</code>. The caller must know the size 9 used in the allocation call. 10</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-ipc-alloc.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ipc.html#idp1124933524">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="API-ipc-rcu-alloc.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">ipc_alloc</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span class="phrase">ipc_rcu_alloc</span></td></tr></table></div></body></html> 11