.. _filesystems_index: =============================== 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. For now, what we have can be found below. Core VFS documentation ====================== See these manuals for documentation about the VFS layer itself and how its algorithms work. .. toctree:: :maxdepth: 2 vfs path-lookup api-summary splice locking directory-locking devpts dnotify fiemap files locks mandatory-locking mount_api quota seq_file sharedsubtree automount-support caching/index porting Filesystem support layers ========================= Documentation for the support code within the filesystem layer for use in filesystem implementations. .. toctree:: :maxdepth: 2 journalling fscrypt fsverity netfs_library Filesystems =========== Documentation for filesystem implementations. .. toctree:: :maxdepth: 2 9p adfs affs afs autofs autofs-mount-control befs bfs btrfs cifs/cifsroot ceph coda configfs cramfs debugfs dlmfs ecryptfs efivarfs erofs ext2 ext3 ext4/index f2fs gfs2 gfs2-uevents gfs2-glocks hfs hfsplus hpfs fuse fuse-io inotify isofs nilfs2 nfs/index ntfs ocfs2 ocfs2-online-filecheck omfs orangefs overlayfs proc qnx6 ramfs-rootfs-initramfs relay romfs spufs/index squashfs sysfs sysv-fs tmpfs ubifs ubifs-authentication udf virtiofs vfat xfs-delayed-logging-design xfs-self-describing-metadata zonefs