1<html><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 V1.78.1"><link rel="home" href="index.html" title="Linux Device Drivers"><link rel="up" href="ch01s07.html" title="Internal Functions"><link rel="prev" href="API-kthread-bind.html" title="kthread_bind"><link rel="next" href="API-kthread-worker-fn.html" title="kthread_worker_fn"></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">kthread_stop</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-kthread-bind.html">Prev</a>&#160;</td><th width="60%" align="center">Internal Functions</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-kthread-worker-fn.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-kthread-stop"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>kthread_stop &#8212; 
2     stop a thread created by <code class="function">kthread_create</code>.
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">kthread_stop </b>(</code></td><td>struct task_struct * <var class="pdparam">k</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1108133804"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>k</code></em></span></dt><dd><p>
4     thread created by <code class="function">kthread_create</code>.
5    </p></dd></dl></div></div><div class="refsect1"><a name="idp1108135764"></a><h2>Description</h2><p>
6   Sets <code class="function">kthread_should_stop</code> for <em class="parameter"><code>k</code></em> to return true, wakes it, and
7   waits for it to exit. This can also be called after <code class="function">kthread_create</code>
8   instead of calling <code class="function">wake_up_process</code>: the thread will exit without
9   calling <code class="function">threadfn</code>.
10   </p><p>
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12   If <code class="function">threadfn</code> may call <code class="function">do_exit</code> itself, the caller must ensure
13   task_struct can't go away.
14   </p><p>
15
16   Returns the result of <code class="function">threadfn</code>, or <code class="constant">-EINTR</code> if <code class="function">wake_up_process</code>
17   was never called.
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