Re: linux-2.5.4-pre1 - bitkeeper testing

[Andrew Pimlott]

On Wed, Mar 13, 2002 at 10:39:28AM +0100, Geert Uytterhoeven wrote:
> On Tue, 12 Mar 2002, Andrew Pimlott wrote:
> > This is misleading--Clearcase stores versions on top a normal
> > filesystem (like most other RCS's), and all manipulation is entirely
>                                                               ^^^^^^^^
> > in user-space (over the network to server processes).  There only
>   ^^^^^^^^^^^^^
> > filesystem magic is that there are directories you cannot list (plus
> > permission semantics are a little funny).
> 
> So what's that ClearCase file system driver doing in kernel space?

Just providing a convenient view on the repository.  The only write
operation you can do through the filesystem is write to the checked
out version.  Checkin, checkout, branch, label, create new
file/directory, rename, link, chmod, etc are all user-space.

Also, you can use ClearCase without the filesystem (snapshot view)
and get all the same functionality.

Andrew