Re: [PATCH] fsset.py tweaks for ext4dev & xfs

[Eric Sandeen <sandeen redhat com>]

Jeremy Katz wrote:
> On Thu, 2008-01-31 at 11:19 -0600, Eric Sandeen wrote:
>> ext4dev just got a "test_fs" flag which soon must be set in order for
>> the kernel to mount it; this will prevent ext3 from accidentally getting
>> mounted as ext4, and making it hard to go back.  (when ext4 goes prime-time,
>> the need for this flag will be removed).
> 
> Seems reasonable, only one question -- what happens once the need for
> test_fs goes away if people's ext4 filesystems have the test_fs flag
> set?

Well, those people who got there via anaconda also had to type
"iamanext4developer" and can use debugfs to unset the flag, if need be.

Although I think the patch Ted has in store for the kernel will mount a
"test_fs" with "production" code; just not vice versa.

In any case, I think we should lift the "iamanext4developer" requirement
and the "test_fs" mkfs option at the same time, so that the only people
who wind up with the flag set at least *claimed* to know what they are
doing.

-Eric