[systemd-devel] Feedback sought: can we drop cgroupv1 support soon?

[Wols Lists]

On 22/07/2022 11:15, Lennart Poettering wrote:
>> I guess that would mean holding on to cgroup1 support until EOY 2023
>> or thereabout?

> That does sound OK to me. We can mark it deprecated before though,
> i.e. generate warnings, and remove it from docs, as long as the actual
> code stays around until then.

You've probably thought of this sort of thing already, but can you wrap 
all v1-specific code in #ifdefs? Especially if it's inside an if block, 
the compiler can then optimise the test away if you compile with that 
set to false.

Upstream can then set the default to false, while continuing to support 
it, but it will then become more and more a conscious effort on the part 
of downstream to keep it working.

Once it's visibly bit-rotting you can dump it :-)

Cheers,
Wol