On 2021-12-15 19:44:00 [+0100], Michal Hocko wrote:

On Wed 15-12-21 18:13:40, Sebastian Andrzej Siewior wrote:

quoted

Okay. What do I gain by doing this / how do I test this? Is running
tools/testing/selftests/cgroup/test_*mem* sufficient to test all corner
cases here?

I am not fully aware of all the tests but my point is that if the soft
limit is not configured then there are no soft limit tree manipulations
ever happening and therefore the code is effectivelly dead. Is this
sufficient for the RT patchset to ignore the RT incompatible parts?

So if that softlimit is not essential and makes things easier by simply
disabling it, yes I could try that. I will keep that in mind.

Sebastian