Welcome to the Linux XFS wiki.
NOTE: the old wiki XFS.org is being migrated to this wiki, if you don't find here what you are looking for, please refer to the old wiki.
Our project uses 1990s-era communication systems:
IRC: #xfs on freenode
Various parts of the XFS design and on-disk artifacts are documented in a git repository.
disk format guide: PDF
Latest source code that's (probably) going into upstream Linux soon.
development git: https://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git/
xfsprogs are the userspace utilities that manage XFS filesystems.
xfsprogs git: https://git.kernel.org/pub/scm/fs/xfs/xfsprogs-dev.git/
xfsprogs release tarballs: https://www.kernel.org/pub/linux/utils/fs/xfs/xfsprogs/
xfsdump tools create and restore backups of directory trees on XFS filesystems.
xfsdump release tarballs: https://www.kernel.org/pub/linux/utils/fs/xfs/xfsdump/
[x]fstests is the test suite for the userspace interfaces to filesystems. Originally developed for XFS, they have grown to cover ext[2-4], btrfs, overlayfs, cifs, f2fs, nfs, ocfs2, and udf.
xfstests git: https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/