Re: [PATCH] Don't register if a non-bcache superblock is found as well

["Cyril B." <cbay-SxHCd5+OuqTrt3ojHgZu+w@public.gmane.org>]

Gabriel de Perthuis wrote:
>> I'm afraid that doesn't work: with that patch, my backing device doesn't even get registered anymore, since blkid will detect it as XFS:
>
> I just tried making an xfs filesystem on a bcache device,
> and the xfs superblock isn't visible to the backing device.
>
> Your problem is likely an old superblock; use wipefs before make-bcache.
>
> If you do find a filesystem that doesn't put its blkid magic
> at a fixed offset from the start of the device, we could
> consider alternatives, like whitelisting them or porting to blkid.
>
> For now, better safe than sorry.


After zeroing my devices and trying again, I cannot reproduce the issue. 
I guess you're right, I must have had an old superblock or something.

Thanks for the fix.

Cyril