On 07/23/2012 02:46 PM, Josef Bacik wrote:
> On Fri, Jul 20, 2012 at 04:38:59PM -0600, Wendy Cheng wrote:

>> However, this should have been a task for the admin (or whoever types
>> this mkfs command). It is not a filesystem's job to assume how the
>> firmware works and silently ignore the DUP request, *unless* there is
>> a standard specification clearly describes linux devices that claim to
>> be not "rotational" should behave this way.
>>
> 
> The admin can still use -m dup if he wants the added possiblity of protection,
> this just makes the default not dup.  

Josef,

this was clear to us with the the code at hand. However, what was
pointed out is that is change of a well established behaviour without
documenting it not informing it.

I don't arguing about the rationale, what I am telling is : ok to the
change but you have to inform the user.

Saying "but the user can revert the change passing '-m dup'" is not a
valid response, because the user *could* revert the change if he *would*
be informed about the change.

BR
G.Baroncelli



>Thanks,
> 
> Josef
> .
> 

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