Hi!

quoted

So the question is, is it worth it to continue supporting the migrate
feature, or should we just delete all of the migration code, and risk
users complaining that we've broken their use case?  The chances of
that happening is admittedly low, and Linus's rule that "it's only
breaking userspace if a user complains" means we might very well get
away with it.  :-)

That's a very good summary Ted, thanks.

Our rationale behind not supporting the migration was always the fact
that we felt that backup was absolutely necessary before operation like
this. When you already have up-to-date backup available you might as
well create a fresh ext4 file system with all the advantages it brings
and recover data from said backup. I think this is still a very
reasonable approach.

Umm. Not really?

First... full backup/restore will take a _long_ time.

Second... if you do online migration, you have filesystem you are
quite unlikely to corrupt, and backup you are unlikely to use. If you
do backup/restore, you have to be _way_ more careful that backup media
is reliable etc.

Best regards,
								Pavel
-- 
http://www.livejournal.com/~pavelmachek