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Mastering Linux Kernel Development

You're reading from Mastering Linux Kernel Development

Product type Book

Published in Oct 2017

Publisher Packt

ISBN-13 9781785883057

Pages 354 pages

Edition 1st Edition

Languages

Concepts

Computer Architecture

Author (1):

CH Raghav Maruthi

Table of Contents (19) Chapters

Title Page

Credits

About the Author

About the Reviewer

www.PacktPub.com

Customer Feedback

Preface

1. Comprehending Processes, Address Space, and Threads

2. Deciphering the Process Scheduler

3. Signal Management

4. Memory Management and Allocators

5. Filesystems and File I/O

6. Interprocess Communication

7. Virtual Memory Management

8. Kernel Synchronization and Locking

9. Interrupts and Deferred Work

10. Clock and Time Management

11. Module Management

Index

Special filesystems

Unlike regular filesystems, which are designed to manage persistent file data backed on to a storage device, the kernel implements various special filesystems that manage a specific class of kernel in-core data structures. Since these filesystems do not deal with persistent data, they do not consume disk blocks, and the entire filesystem structure is maintained in-core. Presence of such filesystems enables simplified application development, debugging, and easier error detection. There are many filesystems in this category, each deliberately designed and implemented for a specific purpose. Following is brief description of a few important ones.

Procfs

Procfs is a special filesystem that enumerates kernel data structures as files. This filesystem serves as a debugging resource for kernel programmers, since it allows users to view the state of data structures through the virtual file interface. Procfs is mounted to the /proc directory (mount point) of rootfs.

Data in procfs...

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Authors (1)

CH Raghav Maruthi

Raghu Bharadwaj is a leading consultant, contributor, and corporate trainer on the Linux kernel with experience spanning close to two decades. He is an ardent kernel enthusiast and expert, and has been closely following the Linux kernel since the late 90s. He is the founder of TECH VEDA, which specializes in engineering and skilling services on the Linux kernel, through technical support, kernel contributions, and advanced training. His precise understanding and articulation of the kernel has been a hallmark, and his penchant for software designs and OS architectures has garnered him special mention from his clients. Raghu is also an expert in delivering solution-oriented, customized training programs for engineering teams working on the Linux kernel, Linux drivers, and Embedded Linux. Some of his clients include major technology companies such as Xilinx, GE, Canon, Fujitsu, UTC, TCS, Broadcom, Sasken, Qualcomm, Cognizant, STMicroelectronics, Stryker, and Lattice Semiconductors.

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