> + *
> + * Returns 1 if the forward progress was achieved and some memory was freed.
> + * Returns a negative value if an error has been occurred.
s/has been occurred/has occurred or occured
> + */
> +__bpf_kfunc int bpf_out_of_memory(struct mem_cgroup *memcg__nullable,
> + int order, bool wait_on_oom_lock)
> +{
> + struct oom_control oc = {
> + .memcg = memcg__nullable,
> + .order = order,
> + };
> + int ret;
> +
> + if (oc.order < 0 || oc.order > MAX_PAGE_ORDER)
> + return -EINVAL;
> +
> + if (wait_on_oom_lock) {
> + ret = mutex_lock_killable(&oom_lock);
> + if (ret)
> + return ret;
> + } else if (!mutex_trylock(&oom_lock))
> + return -EBUSY;
> +
> + ret = out_of_memory(&oc);
> +
> + mutex_unlock(&oom_lock);
> + return ret;
> +}
> +
> __bpf_kfunc_end_defs();
>
> BTF_KFUNCS_START(bpf_oom_kfuncs)
> BTF_ID_FLAGS(func, bpf_oom_kill_process, KF_SLEEPABLE | KF_TRUSTED_ARGS)
> +BTF_ID_FLAGS(func, bpf_out_of_memory, KF_SLEEPABLE | KF_TRUSTED_ARGS)
> BTF_KFUNCS_END(bpf_oom_kfuncs)
>
> static const struct btf_kfunc_id_set bpf_oom_kfunc_set = {
> --
> 2.50.1
>
