Re: [PATCH memcg 2/3] memcg: remove charge forcinig for dying tasks
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From: Tetsuo Handa <hidden>
Date: 2021-10-20 15:20:59
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linux-mm, lkml
On 2021/10/20 23:57, Michal Hocko wrote:
One argument for removing it from here is the maintainability. Now you have a memcg specific check which is not in sync with the oom. E.g. out_of_memory does task_will_free_mem as the very first thing. You are also automatically excluding oom killer for cases where that might make a sense.
What makes it possible to remove this check?
This check was added because task_will_free_mem() in out_of_memory() does NOT work.
See commit 7775face207922ea ("memcg: killed threads should not invoke memcg OOM killer").