Filesystems in the Linux kernel¶ This under-development manual will, some glorious day, provide comprehensive information on how the Linux virtual filesystem (VFS) layer works, along with the filesystems that sit below it.

#include <linux/fs.h> extern int register_filesystem (struct file_system_type *); extern int unregister_filesystem (struct file_system_type *); The passed struct file_system_type describes your filesystem.

This document describes a prototype for a new approach to providing overlay-filesystem functionality in Linux (sometimes referred to as union-filesystems). An overlay-filesystem tries to present a filesystem which is the result over overlaying one filesystem on top of the other.

Oct 7, 1999 · Information about mounted ext4 file systems can be found in /proc/fs/ext4. Each mounted filesystem will have a directory in /proc/fs/ext4 based on its device name (i.e., /proc/fs/ext4/hdc or /proc/fs/ext4/sda9 or /proc/fs/ext4/dm-0).

Mounting it under the ‘/sys/fs/fuse/connections’ directory makes it backwards compatible with earlier versions. Under the fuse control filesystem each connection has a directory named by a unique number.

Oct 17, 2005 · Ramfs is a very simple filesystem that exports Linux’s disk caching mechanisms (the page cache and dentry cache) as a dynamically resizable RAM-based filesystem. Normally all files are cached in memory by Linux.

FS-Cache mediates between cache backends (such as CacheFiles) and network filesystems:

#include <linux/fs.h> extern int register_filesystem (struct file_system_type *); extern int unregister_filesystem (struct file_system_type *); The passed struct file_system_type describes your filesystem.

Linux Filesystems API summary¶ This section contains API-level documentation, mostly taken from the source code itself. The Linux VFS¶ The Filesystem types¶ enum positive_aop_returns ¶ aop return codes with specific semantics

Mar 31, 2005 · Generally, struct config_item is embedded in a container structure, a structure that actually represents what the subsystem is doing. The config_item portion of that structure is how the object interacts with configfs.