> > Just open the nodes with O_EXCL and you'll get all the checking for
> > free. Also make sure that for a pure, read-only checks instead of a
> > repair to allow running on at least a read-only mounted filesystem.
>
> Thanks for working on this patch Andi.
>
> In this case O_EXCL is going to be more accurate just because the
> mounted check doesn't cover every disk in the FS. For now btrfsck
> doesn't really give consistent results even readonly on a mounted
> filesystem. We should prevent it with a message just to prevent
> confusion.
Thanks for the reply. I'll do this as soon as I understand the code that is
affected by those changes (I'm still in the learning phase and stepping through
the code).
Cheers,
Andi
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