Kernel Development Learning Pipeline

Lecture 17: Tuesday, April 1 2025

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Announcements

1. Final project

2. Once again we would like to encourage use of camera and microphone when possible

   1. Keep in mind that it allows us to guage how you are doing and better tailor the lecture to your needs and reactions

Overview

1. Superblocks and filesystem snapshotting

2. ioctl(2)

   1. Background and history

   2. Entry point and codepath

   3. Common IOCTLS to all file descriptors

3. lseek(2)

   1. History and offset extension

   2. Entry point and codepath

Review

1. VFS: write

Slides

VFS: write

VFS: ioctl and lseek

Notes

VFS: write

VFS: ioctl and lseek