Re: [RFC PATCH v2 1/5] mm, oom: Introduce bpf_oom_evaluate_task

From: Chuyi Zhou
Date: Wed Sep 13 2023 - 04:00:58 EST


Hello, Bixuan.

在 2023/9/13 09:18, Bixuan Cui 写道:


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 for your feedback!

Yes, Maybe we should move these enums to a more proper place so that they can be generated by BTF and we can take them from vmlinux.h.

Thanks
Bixuan Cui