<?xml version="1.0" encoding="ANSI_X3.4-1968" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968" /><title>blk_release_queue</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="ch14.html" title="Chapter 14. Block Devices" /><link rel="prev" href="re535.html" title="blk_rq_map_kern" /><link rel="next" href="re537.html" title="blk_queue_prep_rq" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>blk_release_queue</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re535.html">Prev</a> </td><th width="60%" align="center">Chapter 14. Block Devices</th><td width="20%" align="right"> <a accesskey="n" href="re537.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="blk_release_queue"><a id="API-blk-release-queue"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>blk_release_queue —
release a <span class="structname">struct request_queue</span> when it is no longer needed
</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">void <b class="fsfunc">blk_release_queue </b>(</code></td><td>struct kobject * <var class="pdparam">kobj</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2701469"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>kobj</code></em></span></dt><dd><p>
the kobj belonging of the request queue to be released
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2701497"></a><h2>Description</h2><p>
blk_cleanup_queue is the pair to <code class="function">blk_init_queue</code> or
<code class="function">blk_queue_make_request</code>. It should be called when a request queue is
being released; typically when a block device is being de-registered.
Currently, its primary task it to free all the <span class="structname">struct request</span>
structures that were allocated to the queue and the queue itself.
</p></div><div class="refsect1" title="Caveat"><a id="id2701527"></a><h2>Caveat</h2><p>
Hopefully the low level driver will have finished any
outstanding requests first...
</p></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="re535.html">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="ch14.html">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="re537.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span>blk_rq_map_kern</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> <span>blk_queue_prep_rq</span></td></tr></table></div></body></html>
