The following is a list of the typographical conventions used in this book.
Throughout the text there references to pieces of code (for example the boxed margin note adjacent to this text ) within the Linux kernel source tree. These are given in case you wish to look at the source code itself but looking at the source code is not necessary for the understanding of the general principals. All of the file references are relative to /usr/src/linux. If you running Linux (and you should), then looking at the code is a worthwhile experience and you can use this book as an aid to understanding the code and as a guide to its many data structures.