linux-kernel - Re: [PATCH v2 2/3] netcls_cgroup: introduce cgroup_cls_state->is

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Date:	Mon, 19 Nov 2012 20:18:35 +0100
From:	Daniel Wagner <wagi@...om.org>
To:	Tejun Heo <tj@...nel.org>
CC:	daniel.wagner@...-carit.de, serge.hallyn@...onical.com,
	ebiederm@...ssion.com, nhorman@...driver.com, tgraf@...g.ch,
	davem@...emloft.net, lizefan@...wei.com, cgroups@...r.kernel.org,
	containers@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 2/3] netcls_cgroup: introduce cgroup_cls_state->is_local

Hi Tejun,

On 19.11.2012 18:30, Tejun Heo wrote:
> cs->is_local will be used to indicate whether the cgroup has its own
> configuration or inherited from the parent.  It's set when classid is
> configured by writing a positive value to cgroup file
> "net_cls.classid" and cleared when a negative value is written.
>
> is_local is visible to userland via cgroup file "net_cls.is_local" so
> that userland can know whether a cgroup has its config or not.
>
> This patch doesn't yet change hierarchy behavior.  The next patch will
> use is_local to implement proper hierarchy.
>
> v2: Daniel pointed out that cftype->write_u64() accepts base prefix
>      (e.g. 0x10 for 16).  Updated "%lld" to "%lli".
>
> Signed-off-by: Tejun Heo <tj@...nel.org>
> Acked-by: David S. Miller <davem@...emloft.net>
> Acked-by: Neil Horman <nhorman@...driver.com>
> Cc: Daniel Wagner <wagi@...om.org>

Acked-by: Daniel Wagner <daniel.wagner@...-carit.de>

thanks,
daniel

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