Don't use it on redhat systems, those bug reports tend to be for redhat kernels, redhat refuses to apply our bugfixes that we send in to the official kernel because they want us to look bad. I sound so paranoid when I say that, but they really do refuse to apply our bugfixes.Reiser3 lets a directory have more than 32000 subdirectories already.
I ran into this problem two weeks ago on an ext3 filesystem and found
Reiser didn't have the problem. My reiser3 directory had 1million+
subdirs before I killed my test program.
I believe it still has a similar limit on the number of hard links,
but it doesn't implement ".." as a hard link.
--Pete
NetWare has always supported more than this, so this whole idea of fixed inode tables is somewhat strange to me to start with. I am still looking through Hans code, but if this is accurate I'll just take a system out Monday and see if it works. My only concern with Reiser has to do with the bug reports I've seen on it over the years, but Suse is shipping it as default, and we have been running it here for about a year on a production server. I'll post if it crashes, corrupts data, or has problems.
Jeff