netdev - Re: [PATCH v5 2/2] decrement static keys on real destroy time

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Message-id: <4FB0621C.3010604@huawei.com>
Date:	Mon, 14 May 2012 09:38:36 +0800
From:	Li Zefan <lizefan@...wei.com>
To:	Glauber Costa <glommer@...allels.com>
Cc:	cgroups@...r.kernel.org, linux-mm@...ck.org, devel@...nvz.org,
	kamezawa.hiroyu@...fujitsu.com, netdev@...r.kernel.org,
	Tejun Heo <tj@...nel.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Hocko <mhocko@...e.cz>
Subject: Re: [PATCH v5 2/2] decrement static keys on real destroy time

> +static void disarm_static_keys(struct mem_cgroup *memcg)

> +{
> +#ifdef CONFIG_INET
> +	if (memcg->tcp_mem.cg_proto.activated)
> +		static_key_slow_dec(&memcg_socket_limit_enabled);
> +#endif
> +}


Move this inside the ifdef/endif below ?

Otherwise I think you'll get compile error if !CONFIG_INET...

> +
>  #ifdef CONFIG_INET
>  struct cg_proto *tcp_proto_cgroup(struct mem_cgroup *memcg)
>  {
> @@ -452,6 +462,11 @@ struct cg_proto *tcp_proto_cgroup(struct mem_cgroup *memcg)
>  }
>  EXPORT_SYMBOL(tcp_proto_cgroup);
>  #endif /* CONFIG_INET */
> +#else
> +static inline void disarm_static_keys(struct mem_cgroup *memcg)
> +{
> +}
> +
>  #endif /* CONFIG_CGROUP_MEM_RES_CTLR_KMEM */

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