netdev - Re: [PATCH V2] netfilter: netns nf_conntrack: per-netns net.netfilter.nf_conntrack

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Message-Id: <20250409041431.62307-1-xiafei_xupt@163.com>
Date: Wed,  9 Apr 2025 12:14:30 +0800
From: lvxiafei <xiafei_xupt@....com>
To: fw@...len.de
Cc: coreteam@...filter.org,
	davem@...emloft.net,
	edumazet@...gle.com,
	horms@...nel.org,
	kadlec@...filter.org,
	kuba@...nel.org,
	linux-kernel@...r.kernel.org,
	lvxiafei@...setime.com,
	netdev@...r.kernel.org,
	netfilter-devel@...r.kernel.org,
	pabeni@...hat.com,
	pablo@...filter.org,
	xiafei_xupt@....com
Subject: Re: [PATCH V2] netfilter: netns nf_conntrack: per-netns net.netfilter.nf_conntrack_max sysctl

On 2025-04-08 13:28 Florian Westphal <fw@...len.de> wrote:
> That was one of the suggestions that I see how one could have
> tunable pernet variable without allowing netns2 go haywire.

Yes, After net.netfilter.nf_conntrack_max is set in different
netns, it should be designed to not be allowed to be larger
than the global (ancestor) limit when working.