Ext3 implementation for the Hurd

This is my MSc thesis. The implementation is still not matured.

There is project page in OpenFMI. Subversion repository of ext3fs can be browsed online.

Patches and Sources

You can use my key to check some of the files. My key is signed by Debian Developer (Anton Zinoviev).

ext2fs-20030420.diff.gz (announcement)
ext2fs-20030425.diff.gz (Just Before Easter day snapshot)
ext2fs-20030502.diff.gz (Alpha 2; announcement)
ext2fs-20030503.diff.gz (dirty_count snapshot)
ext2fs-20030625.diff.gz (Asserts and panics forever snapshot)
ext2fs-20030721.diff.gz (Alpha 3; announcement)
e2fsprogs-20030721.diff.gz
e2fsprogs-20030802.diff.gz
ext2fs-20031015.diff.gz (Approaching Beta 1 release; announced as Beta 1 on 2003-10-26)
ext2fs_20040121.patch.gz (Release Candidate 1; Patch #2508)
ext2fs_20040219.txt (Description of Release Candidate 1; also available in Patch #2508)
ext2fs_20040304.diff.gz (RC1+20040304; See comments in Patch #2508 for changelog)
ext2fs_20040421.diff.gz ("If you don't like it, rewrite it" release)
ext3fs-0.1.tar.gz (Initial release of ext3fs; announcement)
ext2fs_20040819.diff.gz (announcement)
ext3fs_20040906.html (MSc thesis; first draft; in Bulgarian)
ext3fs_20040924/ (MSc thesis; second draft; in Bulgarian)
ext2fs_20040930.diff.gz ("Don't trust Mach and libpager" snapshot; sign)
ext2fs.static.big_20040930.bz2 (Pre-compiled patched ext2fs; sign)
ext2fs.static.big_20041020.bz2 (Pre-compiled patched ext2fs; 20040930 with debugging support; sign)
ext2fs_20041021.diff.gz ("Do we really write to where we read from?" snapshot; sign)
ext2fs.static.big_20041021.bz2 (Pre-compiled patched ext2fs; sign)
ext2fs_20041029.diff.gz ("Wonders of multithreaded external paging" snapshot; sign)
ext2fs.static.big_20041029.bz2 (Pre-compiled patched ext2fs; sign)
ext2fs_20041111.diff.gz ("Preciser notification" snapshot; sign)
ext2fs.static.big_20041111.bz2 (Pre-compiled patched ext2fs; sign)
Final text of the MSc thesis (20041124; in Bulgarian):
- Frontpage [RTF]
- Text [PDF]
- Browse text [HTML]
- Review [HTML]
- Slides for the defense [OpenOffice.org, converted to PPT]
- ext3fs 0.2
ext2fs_20050822.patch.gz ("Prepared for commit" snapshot; sign)

Desired Features

It is unknown whether these will be included.

Quota support using version 2 of quota format.
Extended Attributes (EAs) and Access Control Lists (ACLs) support.
- grSecurity
- GNU cfengine
- Network File System Version 4
- Achieving More Flexible File Permissions Using Solaris ACLs
- Linux Trustees ACL project (Novell Netware ACL system)
Future enhancements for ext3
RPC that supports dynamic invocations. This could replace all ioctl-style calls.

Resources

The Hurd
- Discussion amongst core developers about mapping the whole disk (2002; gathered by Marcus)
- Review of Roland's proposal (2004; by Neal)
- Review of Thomas's proposal (2004; by Neal; discussion with Thomas)
- Ext2 size page in Hurd Wiki
Ext2/Ext3
- Design and Implementation of the Second Extended Filesystem
- File Systems information
  - Analysis of the Ext2fs structure
- Ext3 for 2.4 home page
- Ext3 journal design document
- EXT3, Journaling Filesystem
- Planned Extensions to the Linux Ext2/Ext3 Filesystem
- Journal File Systems in Linux
- Sample chapter The Ext2 and Ext3 Filesystems from Understanding the Linux Kernel, 2nd Edition
Linux