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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>Chapter 1. Introduction</title><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /><link rel="home" href="index.html" title="Unreliable Guide To Locking" /><link rel="up" href="index.html" title="Unreliable Guide To Locking" /><link rel="prev" href="index.html" title="Unreliable Guide To Locking" /><link rel="next" href="ch02.html" title="Chapter 2. The Problem With Concurrency" /></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">Chapter 1. Introduction</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="index.html">Prev</a> </td><th width="60%" align="center"> </th><td width="20%" align="right"> <a accesskey="n" href="ch02.html">Next</a></td></tr></table><hr /></div><div class="chapter" title="Chapter 1. Introduction"><div class="titlepage"><div><div><h2 class="title"><a id="intro"></a>Chapter 1. Introduction</h2></div></div></div><p>
Welcome, to Rusty's Remarkably Unreliable Guide to Kernel
Locking issues. This document describes the locking systems in
the Linux Kernel in 2.6.
</p><p>
With the wide availability of HyperThreading, and <a class="firstterm" href="go01.html#gloss-preemption"><em class="firstterm">preemption </em></a> in the Linux
Kernel, everyone hacking on the kernel needs to know the
fundamentals of concurrency and locking for
<a class="firstterm" href="go01.html#gloss-smp"><em class="firstterm"><acronym class="acronym">SMP</acronym></em></a>.
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