# Linux Kernel VFSisms

DevFeed: [Linux Kernel VFSisms](<https://devfeed.tech/articles/linux-kernel-vfsisms-33948.md>)

Original publisher: [Read original article](<https://brauner.io/2019/06/28/vfs-wisdom.html>)

Author: Christian Brauner

Published: 2019-06-27T22:00:00Z

Content type: tutorial

Language: en

Sources: [Personal blog of Christian Brauner](<https://devfeed.tech/sources/personal-blog-of-christian-brauner.md>)

Topics: [Kernel](<https://devfeed.tech/topics/kernel.md>), [Linux Kernel](<https://devfeed.tech/topics/linux-kernel.md>), [Linux](<https://devfeed.tech/topics/linux.md>), [file](<https://devfeed.tech/topics/file.md>), [function](<https://devfeed.tech/topics/function.md>)

Tags: [filesystem](<https://devfeed.tech/tags/filesystem.md>), [function](<https://devfeed.tech/tags/function.md>), [kernel](<https://devfeed.tech/tags/kernel.md>), [linux](<https://devfeed.tech/tags/linux.md>), [linux-kernel](<https://devfeed.tech/tags/linux-kernel.md>), [maintainers](<https://devfeed.tech/tags/maintainers.md>)

## AI overview

A collection of practical notes on Linux Kernel VFS internals, focusing on when to install or reserve file descriptors and how to initialize directory inodes safely. The author cautions that the material may contain errors and should not be relied on as authoritative guidance.

## Source excerpt

Introduction