Re: [PATCH] btrfs: Introduce new mount option to disable tree log replay

[Christoph Anton Mitterer <calestyo@scientia.net>]

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On Tue, 2015-12-08 at 07:15 -0500, Austin S Hemmelgarn wrote:
> Despite this, it really isn't a widely known or well documented
> behavior 
> outside of developers, forensic specialists, and people who have had
> to 
> deal with the implications it has on data recovery.  There really
> isn't 
> any way that the user would know about it without being explicitly
> told, 
> and it's something that can have a serious impact on being able to 
> recover a broken filesystem.  TBH, I really feel that _every_ 
> filesystem's documentation should have something about how to make it
> mount truly read-only, even if it's just a reference to how to mark
> the 
> block device read-only.
Exactly what I've meant.

And the developers here, should definitely consider that every normal
end-user, may easily assume the role of e.g. a forensics specialist
(especially with btrfs ;-) ), when recovery in case of corruptions is
tried.


I don't think that "it has always been improperly documented" (i.e. the
"ro" option) is a good excuse to continue doing it that way =)


Cheers,
Chris.

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