Namespaces in operation, part 5: User namespaces

Yeah, that was the first hit I got, too, but I discarded it for the reason listed below.

> So I still stand by my previous comment. Around a megabyte :)

Well, that specific patch is for a RHEL 5 based kernel, i.e. on top of their version of 2.6.18. The RHEL 6 based 2.6.32 kernel patch weights in at currently 1.3 MB (see [1]). And that patch dates from March 4th 2011, so I would hardly call it current :p.

Anyway, with ploop and some of their other bits being out of mainline for now their patch is a little like the RT patch set: growing some time and shrinking some other time, but as patches move into mainline from it new patches for new functionality get added on top. At least after many years of living mostly out of mainline their efforts like CRIU have shown that you can merge it into mainline assuming all interested parties collaborate, and that is a really positive development imho.

Cheers,

Michael

[1] http://download.openvz.org/kernel/branches/2.6.32/2.6.32-...