Re: [PATCH 0/5] VFS API for getting filesystem's UUID

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On Thu, Apr 27, 2017 at 10:59 AM, Amir Goldstein <amir73il@xxxxxxxxx> wrote:
> Miklos,
>
> As you observed, the sb->s_uuid field is not always filled by filesystems.
>
> Consumers, like overlayfs, that wish to use this field can check if is
> zeroed out as an indication for valid value.
>
> Christoph suggested to make the test more explicit and require the
> filesystems that fill the s_uuid field to set a super block flag.
>
> Do you agree with the proposed API?

Sure.

Thanks,
Miklos
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