netdev - Re: [PATCH nf-next] netfilter: xtables: lightweight process control group matching

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Message-ID: <52522555.70407@cn.fujitsu.com>
Date:	Mon, 07 Oct 2013 11:07:01 +0800
From:	Gao feng <gaofeng@...fujitsu.com>
To:	Daniel Borkmann <dborkman@...hat.com>
CC:	pablo@...filter.org, netfilter-devel@...r.kernel.org,
	netdev@...r.kernel.org, Tejun Heo <tj@...nel.org>,
	cgroups@...r.kernel.org
Subject: Re: [PATCH nf-next] netfilter: xtables: lightweight process control
 group matching

On 10/05/2013 02:20 AM, Daniel Borkmann wrote:
> +static void cgroup_attach(struct cgroup_subsys_state *css,
> +			  struct cgroup_taskset *tset)
> +{
> +	struct task_struct *p;
> +	void *v;
> +
> +	cgroup_taskset_for_each(p, css, tset) {
> +		task_lock(p);
> +		v = (void *)(unsigned long) task_fwid(p);

Shouldn't v be css_nf_state(css)->fwid?

> +		iterate_fd(p->files, 0, cgroup_fwid_update, v);
> +		task_unlock(p);
> +	}
> +}

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