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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>kthread_stop</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="Linux Device Drivers" /><link rel="up" href="ch01s06.html" title="Internal Functions" /><link rel="prev" href="re114.html" title="kthread_create" /><link rel="next" href="ch01s07.html" title="Kernel objects manipulation" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span>kthread_stop</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="re114.html">Prev</a> </td><th width="60%" align="center">Internal Functions</th><td width="20%" align="right"> <a accesskey="n" href="ch01s07.html">Next</a></td></tr></table><hr /></div><div class="refentry" title="kthread_stop"><a id="API-kthread-stop"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>kthread_stop —
stop a thread created by <code class="function">kthread_create</code>.
</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">kthread_stop </b>(</code></td><td>struct task_struct * <var class="pdparam">k</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Arguments"><a id="id2609633"></a><h2>Arguments</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>k</code></em></span></dt><dd><p>
thread created by <code class="function">kthread_create</code>.
</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="id2609666"></a><h2>Description</h2><p>
Sets <code class="function">kthread_should_stop</code> for <em class="parameter"><code>k</code></em> to return true, wakes it, and
waits for it to exit. This can also be called after <code class="function">kthread_create</code>
instead of calling <code class="function">wake_up_process</code>: the thread will exit without
calling <code class="function">threadfn</code>.
</p><p>
If <code class="function">threadfn</code> may call <code class="function">do_exit</code> itself, the caller must ensure
task_struct can't go away.
</p><p>
Returns the result of <code class="function">threadfn</code>, or <code class="constant">-EINTR</code> if <code class="function">wake_up_process</code>
was never called.
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