linux-kernel - RE: [RFC PATCH 00/30] Kernel NET policy

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Date:	Mon, 18 Jul 2016 17:40:31 +0000
From:	"Liang, Kan" <kan.liang@...el.com>
To:	Florian Westphal <fw@...len.de>
CC:	"davem@...emloft.net" <davem@...emloft.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"Kirsher, Jeffrey T" <jeffrey.t.kirsher@...el.com>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"peterz@...radead.org" <peterz@...radead.org>,
	"kuznet@....inr.ac.ru" <kuznet@....inr.ac.ru>,
	"jmorris@...ei.org" <jmorris@...ei.org>,
	"yoshfuji@...ux-ipv6.org" <yoshfuji@...ux-ipv6.org>,
	"kaber@...sh.net" <kaber@...sh.net>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"keescook@...omium.org" <keescook@...omium.org>,
	"viro@...iv.linux.org.uk" <viro@...iv.linux.org.uk>,
	"gorcunov@...nvz.org" <gorcunov@...nvz.org>,
	"john.stultz@...aro.org" <john.stultz@...aro.org>,
	"aduyck@...antis.com" <aduyck@...antis.com>,
	"ben@...adent.org.uk" <ben@...adent.org.uk>,
	"decot@...glers.com" <decot@...glers.com>,
	"Brandeburg, Jesse" <jesse.brandeburg@...el.com>,
	"andi@...stfloor.org" <andi@...stfloor.org>
Subject: RE: [RFC PATCH 00/30] Kernel NET policy



> 
> > > It seems strange to me to add such policies to the kernel.
> >
> > But kernel is the only place which can merge all user's requests.
> 
> I don't think so.
> 
> If different requests conflict in a way that is possible to dosomething
> meaningful the I don't see why userspace tool cannot do the same thing...
> 

Yes, I should correct my expression.
I think kernel should be a better place to do those things.
Kernel should be more efficient to coordinate those requests to get good
performance.


Thanks,
Kan