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SubjectRe: linux-2.5.4-pre1 - bitkeeper testing
On Wed, Mar 13, 2002 at 09:37:20AM -0500, Andrew Pimlott wrote:
> 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.

Are you sure about that? Snapshots are just the cleartext files. The
set of operations you can do with a disconnected snapshot is extremely
limited, last I checked all you could do was edit the files.
--
---
Larry McVoy lm at bitmover.com http://www.bitmover.com/lm
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