linux-kernel - Re: [PATCH v3 1/7] Basic kernel memory functionality for the Memory Controller

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Date:	Wed, 21 Sep 2011 22:58:04 -0700
From:	Greg Thelen <gthelen@...gle.com>
To:	Glauber Costa <glommer@...allels.com>
Cc:	linux-kernel@...r.kernel.org, paul@...lmenage.org,
	lizf@...fujitsu.com, kamezawa.hiroyu@...fujitsu.com,
	ebiederm@...ssion.com, davem@...emloft.net, netdev@...r.kernel.org,
	linux-mm@...ck.org, kirill@...temov.name
Subject: Re: [PATCH v3 1/7] Basic kernel memory functionality for the Memory Controller

On Sun, Sep 18, 2011 at 5:56 PM, Glauber Costa <glommer@...allels.com> wrote:
> @@ -270,6 +274,10 @@ struct mem_cgroup {
>         */
>        struct res_counter memsw;
>        /*
> +        * the counter to account for kmem usage.
> +        */
> +       struct res_counter kmem;
> +       /*

I don't see this charged, is this used in a later patch in this series?

> @@ -5665,3 +5754,17 @@ static int __init enable_swap_account(char *s)
>  __setup("swapaccount=", enable_swap_account);
>
>  #endif
> +
> +#ifdef CONFIG_CGROUP_MEM_RES_CTLR_KMEM
> +static int __init disable_kmem_account(char *s)

Minor nit.  To be consistent with the other memcg __setup options, I
think this should be renamed to enable_kmem_account().

> +{
> +       /* consider enabled if no parameter or 1 is given */
> +       if (!strcmp(s, "1"))
> +               do_kmem_account = 1;
> +       else if (!strcmp(s, "0"))
> +               do_kmem_account = 0;
> +       return 1;
> +}
> +__setup("kmemaccount=", disable_kmem_account);
> +
> +#endif
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