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<html xmlns="http://www.w3.org/1999/xhtml"><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 V1.75.2" /><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="re212.html" title="mempool_create" /><link rel="next" href="re214.html" title="mempool_destroy" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>mempool_resize</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re212.html">Prev</a> </td><th width="60%" align="center">More Memory Management Functions</th><td width="20%" align="right"> <a accesskey="n" href="re214.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="mempool_resize"><a id="API-mempool-resize"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>mempool_resize —
resize an existing memory pool
</p></div><div class="refsynopsisdiv" title="Synopsis"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0" class="funcprototype-table"><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> </td><td>int <var class="pdparam">new_min_nr</var>, </td></tr><tr><td> </td><td>gfp_t <var class="pdparam">gfp_mask</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2650873"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>pool</code></em></span></dt><dd><p>
pointer to the memory pool which was allocated via
<code class="function">mempool_create</code>.
</p></dd><dt><span class="term"><em class="parameter"><code>new_min_nr</code></em></span></dt><dd><p>
the new minimum number of elements guaranteed to be
allocated for this pool.
</p></dd><dt><span class="term"><em class="parameter"><code>gfp_mask</code></em></span></dt><dd><p>
the usual allocation bitmask.
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2650942"></a><h2>Description</h2><p>
This function shrinks/grows the pool. In the case of growing,
it cannot be guaranteed that the pool will be grown to the new
size immediately, but new <code class="function">mempool_free</code> calls will refill it.
</p><p>
Note, the caller must guarantee that no mempool_destroy is called
while this function is running. <code class="function">mempool_alloc</code> & <code class="function">mempool_free</code>
might be called (eg. from IRQ contexts) while this function executes.
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re212.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch04s03.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re214.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>mempool_create</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>mempool_destroy</span></td></tr></table></div></body></html>
