Re: [PATCH] mm: memcontrol.c: move mem_cgroup_id_get_many under CONFIG_MMU

[Qian Cai]

> On Dec 17, 2019, at 10:13 AM, Michal Hocko <mhocko@xxxxxxxxxx> wrote:
> 
> I do understand the general purpose of the warning. I am simply not sure
> the kernel tree is a good candidate with a huge number of different
> config combinations that might easily result in warnings which would
> tend to result in even more ifdeferry than we have.

Yes, compiling test without real-world use case is evil. Once we ignore the evil, it becomes much more manageable.