linux-kernel - Re: [RFC PATCH v2 1/5] mm, oom: Introduce bpf_oom_evaluate

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Message-ID: <e88fe274-cd53-40d4-9a8e-7c6a4e1d8c44@vivo.com>
Date:   Wed, 13 Sep 2023 09:18:55 +0800
From:   Bixuan Cui <cuibixuan@...o.com>
To:     Chuyi Zhou <zhouchuyi@...edance.com>, hannes@...xchg.org,
        mhocko@...nel.org, roman.gushchin@...ux.dev, ast@...nel.org,
        daniel@...earbox.net, andrii@...nel.org, muchun.song@...ux.dev
Cc:     bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        wuyun.abel@...edance.com, robin.lu@...edance.com,
        Michal Hocko <mhocko@...e.com>
Subject: Re: [RFC PATCH v2 1/5] mm, oom: Introduce bpf_oom_evaluate_task



在 2023/8/10 16:13, Chuyi Zhou 写道:
> +#include <linux/bpf.h> #include <linux/oom.h> #include <linux/mm.h> 
> #include <linux/err.h> @@ -305,6 +306,27 @@ static enum oom_constraint 
> constrained_alloc(struct oom_control *oc) return CONSTRAINT_NONE; } 
> +enum { + NO_BPF_POLICY, + BPF_EVAL_ABORT, + BPF_EVAL_NEXT, + 
> BPF_EVAL_SELECT, +}; +

I saw that tools/testing/selftests/bpf/progs/oom_policy.c is also using 
NO_BPF_POLICY etc. I think
+enum {
+	NO_BPF_POLICY,
+	BPF_EVAL_ABORT,
+	BPF_EVAL_NEXT,
+	BPF_EVAL_SELECT,
+};
+
definitions can be placed in include/linux/oom.h

Thanks
Bixuan Cui