F9 (bug?) Superblock features different from backup

[Eric Sandeen]

Nils Philippsen wrote:
> On Sat, 2008-05-10 at 17:15 -0500, Eric Sandeen wrote:
>> Ahmed Kamal wrote:
>>> Just out of curiosity, could you let me know what kind of changes the
>>> kernel makes to the superblock without asking first! That sounds interesting
>> sure, things like the first time a "large" (> 2G file) is written it
>> will set a flag to that effect.
>>
>> Or the first time an extent-based file is created on ext4.
>>
>> We've talked about removing these, actually, and requiring the flags to
>> be set at mkfs time, or via tune2fs, if you wish to use the feature,
>> rather than silently turning them on.
> 
> But make that the default for new filesystems pretty please kthxbye ;-).

Make which the default?  :) But of course sane defaults would be chosen
for mkfs...

-Eric