Go through Ognyan Kulev's (ogi) pages, and archive / hunt down what's still interesting.
SVN ext2fs (ext2fs / large stores doc)
ext3fs et al.
checking copyright situation, also for thesis / w.r.t. university project
IRC, freenode, #hurd, 2013-02-15:
<tschwinge> ogi: The question was rather (IIRC) whether your university has the copyright of this project, given it was done on their time. <ogi> tschwinge: no problems with my university
IRC, freenode, #hurd, 2013-02-15
<ogi> braunr: i want to update my ext3fs server to ext4 actually <braunr> you have an ext3 server ? <ogi> braunr: this was my M.Sc. thesis and the 2G patch was a side effect <ogi> braunr: but it easily crashes under stress, so not usable <braunr> it does ? <ogi> braunr: it's not available for download ATM <braunr> are you sure it's not a thread storm issue caused by the unthrottled mach writebacks ? <ogi> braunr: i don't know, haven't looked at it since 2004 <braunr> oh :) <braunr> ok <ogi> i have all ext3fs stuff archived, just haven't put it on http://fire.tower.3.bg/ yet <tschwinge> ogi: If the copyright situation is clear, we can put it into upstream Git repositories, no matter how dirty it is. <tschwinge> "dirty" in the sense of that it needs cleanup, has bugs, etc. <ogi> so at some point i want to audit libdiskfs and then continue with ext4fs: https://savannah.gnu.org/patch/?1839