Kyle Moffett wrote:

On Jun 18, 2007, at 13:56:05, Bryan Henderson wrote:

quoted

quoted

The question remains is where to implement versioning: directly in  
individual filesystems or in the vfs code so all filesystems can  
use it?

Or not in the kernel at all.  I've been doing versioning of the  
types I described for years with user space code and I don't  
remember feeling that I compromised in order not to involve the  
kernel.

Of course, if you want to do it with snapshots and COW, you'll have  
to ask where in the kernel to put that, but that's not a file  
versioning question; it's the larger snapshot question.

What I think would be particularly interesting in this domain is  
something similar in concept to GIT, except in a file-system

[cut]

How it relates to ext3cow versioning (snapshotting) filesystem,
for example? ext3cow assumes linear history, which simplifies things
a bit.

-- 
Jakub Narebski
Warsaw, Poland
ShadeHawk on #git