1<html><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 V1.78.1"><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="races.html" title="Chapter 2. The Problem With Concurrency"></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">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="races.html">Next</a></td></tr></table><hr></div><div class="chapter"><div class="titlepage"><div><div><h1 class="title"><a name="intro"></a>Chapter 1. Introduction</h1></div></div></div><p> 2 Welcome, to Rusty's Remarkably Unreliable Guide to Kernel 3 Locking issues. This document describes the locking systems in 4 the Linux Kernel in 2.6. 5 </p><p> 6 With the wide availability of HyperThreading, and <a class="firstterm" href="glossary.html#gloss-preemption"><em class="firstterm">preemption </em></a> in the Linux 7 Kernel, everyone hacking on the kernel needs to know the 8 fundamentals of concurrency and locking for 9 <a class="firstterm" href="glossary.html#gloss-smp"><em class="firstterm"><acronym class="acronym">SMP</acronym></em></a>. 10 </p></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="index.html">Prev</a> </td><td width="20%" align="center"> </td><td width="40%" align="right"> <a accesskey="n" href="races.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Unreliable Guide To Locking </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top"> Chapter 2. The Problem With Concurrency</td></tr></table></div></body></html> 11