[CFR] ZFS features support

[Matthew Ahrens]

Martin, I haven't reviewed the code but I think it's great you're doing
this.  Thanks!  I hope that feature flags will be useful in FreeBSD.  Let
me or Chris know if you have any issues using it to develop new features.

--matt

On Thu, Jun 7, 2012 at 8:26 AM, Martin Matuska <mm at freebsd.org> wrote:

> I have now completed boot support for ZFS features.
>
> Please review and comment my patch:
> http://people.freebsd.org/~mm/patches/zfs/features/head-zfs-features.patch
>
> Boot-only patch:
>
> http://people.freebsd.org/~mm/patches/zfs/features/head-zfs-features-boot.patch
>
> I have also an alternate boot patch that adds functions like
> nvlist_name(), nvlist_value(), but the previous one has a smaller
> footprint:
>
> http://people.freebsd.org/~mm/patches/zfs/features/head-zfs-features-boot.fc.patch
>
> The boot code can be tested with the "zhack" tool, e.g. with:
> zhack feature add tank org.freebsd:test
> zhack feature ref -m tank org.freebsd:test
> Now you are unable to boot.
> zhack feature ref -d tank org.freebsd:test
> Now you are able to boot.
>
> If there are no quick objections, I will commit this to -HEAD with a
> 1-month MFC.
>
> Cheers,
> mm
>
> --
> Martin Matuska
> FreeBSD committer
> http://blog.vx.sk
>
> _______________________________________________
> zfs-devel at freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/zfs-devel
> To unsubscribe, send any mail to "zfs-devel-unsubscribe at freebsd.org"
>