Re: Possible to undo subvol delete?

[Austin S Hemmelgarn <ahferroin7@gmail.com>]

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On 2014-12-01 08:38, MegaBrutal wrote:
> 2014-12-01 14:12 GMT+01:00 Austin S Hemmelgarn <ahferroin7@gmail.com>:
>>
>> We might want to consider adding an option to btrfs subvol del to ask for
>> confirmation (or make it do so by default and add an option to disable
>> asking for confirmation).
>>
>
> I've also noticed, a subvolume can just be deleted with an "rm -r",
> just like an ordinary directory. I'd consider to only allow subvolume
> deletions with exact "btrfs subvolume delete" commands, and they
> should be protected against an ordinary "rm". There also could be a
> tunable FS feature to allow or disable ordinary subvolume deletions,
> which could be set or unset by btrfstune. I think a subvolume really
> deserves to be treated specially over an ordinary directory.
I don't know what distro/kernel version you might be using, but every 
version of btrfs I have used required the use of 'btrfs subvol del' to 
actually delete a subvolume, even an empty one.  It would not surprise 
me though if RHEL or SuSE had patched the kernel to allow using rm on a 
subvolume.


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