This article offers a thorough exploration of the Linux filesystem architecture, starting with the on-disk structure of the EXT2 filesystem and moving up to the Virtual File System (VFS) layer. It includes source-level explanations of key components such as inodes, superblocks, and dentries, making it a valuable resource for engineers who want to understand how file operations are abstracted in the kernel. While the content is tutorial in nature and not breaking news, its technical depth and evergreen nature make it a strong candidate for a topic page. Developers working on storage systems, kernel modules, or performance tuning will find practical insights here.
A deep dive into Linux filesystem internals covering EXT2 physical layout and VFS source code analysis.