From: Glauber Costa <glommer-bzQdu9zFT3WakBO8gow8eQ@public.gmane.org>
Subject: Re: [PATCH 01/12] container quota: add kernel configuration for container
 quota.
Date: Thu, 31 May 2012 13:00:08 +0400
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On 05/30/2012 06:58 PM, jeff.liu-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org wrote:
> Add kernel configuration for container quota.
>
> Signed-off-by: Jie Liu<jeff.liu-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
> ---
>   fs/quota/Kconfig |    9 +++++++++
>   1 files changed, 9 insertions(+), 0 deletions(-)
>
> diff --git a/fs/quota/Kconfig b/fs/quota/Kconfig
> index 880fd98..2dd3e83 100644
> --- a/fs/quota/Kconfig
> +++ b/fs/quota/Kconfig
> @@ -16,6 +16,15 @@ config QUOTA
>   	  with the quota tools. Probably the quota support is only useful for
>   	  multi user systems. If unsure, say N.
>
> +config NS_QUOTA
> +	bool "Mount namespace quota support"
> +	depends on QUOTA
> +	default n
> +	help
> +	  If you say Y here, you will be able to set per container user limits
> +	  for disk usage (also called disk quotas). Currently, it works for the
> +	  ext4 file system only for demonstration purpose.
> +

That should depend on mount namespaces as well.