Open Source

XFS: Source Code

There are several ways to access the current XFS code.

  • Mainline kernels
    XFS is merged into both the official Linux 2.4 and Linux 2.6 kernel trees. These are frequently updated with the latest stable fixes and features from the SGI XFS development team.

  • Vendor kernels
    All modern Linux distributions include support for XFS. SGI actively works with SUSE to provide a supported version of XFS in that distribution.

  • SGI Releases
    SGI provides a release based on a stable distribution kernel, which forms the basis of some of the products SGI ships to customers. A distribution based on RedHat 9 (with XFS installer, kernel, and userspace support; and with the Large Block Device patch enabled and tested for specific drivers) can be found in the download area.

  • CVS web
    Browse the XFS source trees.

  • CVS trees
  • CVSup
    Direct CVS access to the most recent XFS changes. See below.

Using CVS trees

CVS for new users contains links to general CVS documentation.

Set the CVSROOT environment variable.

$ export CVSROOT=':pserver:cvs@oss.sgi.com:/cvs'
(for sh, bash, ksh, or similar shells)
$ setenv CVSROOT  :pserver:cvs@oss.sgi.com:/cvs
(for csh or tcsh shells)
 

Login to the CVS server (this only needs to be done ONCE, not every time you access CVS).

$ cvs login
(the password is "cvs")
 

Now grab the XFS source tree(s) of interest: 

$ cvs checkout linux-2.6-xfs
$ cvs checkout linux-2.4-xfs
$ cvs checkout xfs-cmds
 

Subsequently, you can checkout new code using: 

$ cvs update -d
 

Using CVSup

CVSup is a very fast file distribution system. For information on CVSup, see the CVSup Home Page.

You can use CVSup as an alternative to CVS for keeping current with the latest development changes. Standard CVS options such as "cvs log" and "cvs diff" are not available with CVSup, but the CVS web interface should provide most of that functionality.

The following shows a sample basic supfile configuration file: 

*default host=xfs.org
*default base=.
*default release=cvs tag=.
*default delete use-rel-suffix
*default prefix=/tmp/cvsupit
*default compress
linux-2.6-xfs

Change prefix to a dest dir of your liking then run cvsup supfile. Hit the start button once the window pops up.

The CVS tree itself may also be keep current with this method by dropping the tag=. flag from supfile, as in the following example: 

*default host=xfs.org
*default base=.
*default release=cvs
*default delete use-rel-suffix
*default prefix=/tmp/cvsupit
*default compress
linux-2.6-xfs

The Linux 2.4 tree and XFS commands trees can be accessed via similar configuration files (replace final line appropriately).