From: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
Date: Mon, 7 Dec 2009 10:49:28 +0000 (-0200)
Subject: Added some memory allocation and concurrency basics.
X-Git-Url: http://git.cascardo.eti.br/?p=cascardo%2Fkernel%2Fold_slides%2F.git;a=commitdiff_plain;h=ee6d8a3e60f8cbe8d9163e6fd41edb8cba07083c

Added some memory allocation and concurrency basics.
---

diff --git a/03.char/03.char.xml b/03.char/03.char.xml
index 43a871a..1d278a5 100644
--- a/03.char/03.char.xml
+++ b/03.char/03.char.xml
@@ -86,4 +86,21 @@ when driver writes less bytes than requested.
 </para>
 </foil>
 
+<foil>
+<title>Memory Allocation</title>
+<para>
+<emphasis>kmalloc</emphasis> and <emphasis>kfree</emphasis> are defined in
+<emphasis>include/linux/slab.h</emphasis> and are equivalent to their standard C
+functions <emphasis>malloc</emphasis> and <emphasis>free</emphasis>.
+</para>
+</foil>
+
+<foil>
+<title>Concurrency</title>
+<para>
+Semaphores may be used for protection with the <emphasis>up</emphasis> and
+<emphasis>down</emphasis> operations.
+</para>
+</foil>
+
 </slides>