1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>mempool_resize</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-mempool-create.html" title="mempool_create"><link rel="next" href="API-mempool-alloc.html" title="mempool_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">mempool_resize</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-mempool-create.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-mempool-alloc.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-mempool-resize"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>mempool_resize &#8212; 
2     resize an existing memory pool
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">mempool_resize </b>(</code></td><td>mempool_t * <var class="pdparam">pool</var>, </td></tr><tr><td>&#160;</td><td>int <var class="pdparam">new_min_nr</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1124684380"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>pool</code></em></span></dt><dd><p>
4     pointer to the memory pool which was allocated via
5     <code class="function">mempool_create</code>.
6    </p></dd><dt><span class="term"><em class="parameter"><code>new_min_nr</code></em></span></dt><dd><p>
7     the new minimum number of elements guaranteed to be
8     allocated for this pool.
9    </p></dd></dl></div></div><div class="refsect1"><a name="idp1124687484"></a><h2>Description</h2><p>
10   This function shrinks/grows the pool. In the case of growing,
11   it cannot be guaranteed that the pool will be grown to the new
12   size immediately, but new <code class="function">mempool_free</code> calls will refill it.
13   This function may sleep.
14   </p><p>
15
16   Note, the caller must guarantee that no mempool_destroy is called
17   while this function is running. <code class="function">mempool_alloc</code> &amp; <code class="function">mempool_free</code>
18   might be called (eg. from IRQ contexts) while this function executes.
19</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API-mempool-create.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="ch04s03.html">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-mempool-alloc.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">mempool_create</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">mempool_alloc</span></td></tr></table></div></body></html>
20