Re: Back to the future.

Oliver Neukum
2007-04-27T19:09:51Z

Am Freitag, 27. April 2007 12:12 schrieb Pekka J Enberg:
> I am talking about snapshot_system() here. It's not given that the
> filesystems need to be read-only (you can snapshot them too). The benefit
> here is that you can do whatever you want with the snapshot (encrypt,
> compress, send over the network)  and have a clean well-defined interface
> in the kernel. In addition, aborting the snapshot is simpler, simply
> munmap() the snapshot.

But is that worth the trade off?

> The problem with writing in the kernel is obvious: we need to add new code
> to the kernel for compression, encryption, and userspace interaction
> (graphical progress bar) that are important for user experience.

The kernel can already do compression and encryption.

Regards
Oliver