Book Image

Mastering Linux Kernel Development

By : CH Raghav Maruthi
Book Image

Mastering Linux Kernel Development

By: CH Raghav Maruthi

Overview of this book

Mastering Linux Kernel Development looks at the Linux kernel, its internal arrangement and design, and various core subsystems, helping you to gain significant understanding of this open source marvel. You will look at how the Linux kernel, which possesses a kind of collective intelligence thanks to its scores of contributors, remains so elegant owing to its great design. This book also looks at all the key kernel code, core data structures, functions, and macros, giving you a comprehensive foundation of the implementation details of the kernel’s core services and mechanisms. You will also look at the Linux kernel as well-designed software, which gives us insights into software design in general that are easily scalable yet fundamentally strong and safe. By the end of this book, you will have considerable understanding of and appreciation for the Linux kernel.
Table of Contents (19 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

Filesystem - high-level view

Filesystems abstract the physical view of storage devices from users, and virtualize storage area on a disk for each valid user of the system through abstract containers called files and directories. Files serve as containers for user data and directories act as containers to a group of user files. In simple words, operating systems virtualize a view of a storage device for each user as a set of directories and files. Filesystem services implement routines to create, organize, store, and retrieve files, and these operations are invoked by user applications through appropriate system call interfaces.

We will begin this discussion by looking at the layout of a simple filesystem, designed to manage a standard magnetic storage disk. This discussion will help us comprehend key terms and concepts related to disk management in general. A typical filesystem implementation however involves appropriate data structures which describe the organization of file data on disk...