1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>init_rcu_head_on_stack</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="ch01s09.html" title="Kernel utility functions"><link rel="prev" href="API-rcu-read-lock-bh-held.html" title="rcu_read_lock_bh_held"><link rel="next" href="API-destroy-rcu-head-on-stack.html" title="destroy_rcu_head_on_stack"></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">init_rcu_head_on_stack</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API-rcu-read-lock-bh-held.html">Prev</a>&#160;</td><th width="60%" align="center">Kernel utility functions</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-destroy-rcu-head-on-stack.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API-init-rcu-head-on-stack"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>init_rcu_head_on_stack &#8212; 
2     initialize on-stack rcu_head for debugobjects
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">void <b class="fsfunc">init_rcu_head_on_stack </b>(</code></td><td>struct rcu_head * <var class="pdparam">head</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1108747908"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>head</code></em></span></dt><dd><p>
4     pointer to rcu_head structure to be initialized
5    </p></dd></dl></div></div><div class="refsect1"><a name="idp1108749548"></a><h2>Description</h2><p>
6   This function informs debugobjects of a new rcu_head structure that
7   has been allocated as an auto variable on the stack.  This function
8   is not required for rcu_head structures that are statically defined or
9   that are dynamically allocated on the heap.  This function has no
10   effect for !CONFIG_DEBUG_OBJECTS_RCU_HEAD kernel builds.
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