Re: [PATCH v2] btrfs: fix a possible race window when allocating new extent buffers

[Qu Wenruo <quwenruo.btrfs@gmx.com>]

在 2024/6/7 04:57, David Sterba 写道:
[...]
>
> Thanks. I'll pick the patch to branch for the next pull request, the fix has
> survived enough testing and we should get it to stable without further delays.
> I've edited the subject and changelog a bit, the problem is really the folio
> private protection, it is a race window fix but that does not tell much what is
> the cause. I've also added the reproducer script from Chris.
>

Mind to push the updated version to for-next?

I'd like to restart the test of larger metadata folios.
Ironically if we force larger metadata folios (one folio one metadata),
the race can also be solved, as now folio lock would kick in to prevent
the race.

Thanks,
Qu