linux-kernel - Re: [PATCH v9 net-next 1/3] filter: add Extended BPF interpreter and converter

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Message-ID: <CAHA+R7P=XAWAPkJTZSfHs02-+V+VOMQ04ZNNjY6LmPdRENzCJA@mail.gmail.com>
Date:	Wed, 12 Mar 2014 15:16:15 -0700
From:	Cong Wang <cwang@...pensource.com>
To:	Alexei Starovoitov <ast@...mgrid.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Daniel Borkmann <dborkman@...hat.com>,
	Ingo Molnar <mingo@...nel.org>, Will Drewry <wad@...omium.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"H. Peter Anvin" <hpa@...or.com>,
	Hagen Paul Pfeifer <hagen@...u.net>,
	Jesse Gross <jesse@...ira.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Eric Dumazet <edumazet@...gle.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Pekka Enberg <penberg@....fi>,
	Arjan van de Ven <arjan@...radead.org>,
	Christoph Hellwig <hch@...radead.org>,
	Pavel Emelyanov <xemul@...allels.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH v9 net-next 1/3] filter: add Extended BPF interpreter and converter

(Sorry for jumping into this thread late.)

On Mon, Mar 10, 2014 at 9:41 PM, Alexei Starovoitov <ast@...mgrid.com> wrote:
>
> 3. tracing filters systemtap-like with extended BPF
>
> 4. OVS with extended BPF
>
> 5. nftables with extended BPF

If you plan to use extended BPF out of networking, does
it make sense to make it independent of networking?
That is, rename those sk_*() APIs?

>
> +int bpf_ext_enable __read_mostly;
> +

This could be converted to a jump label, no?
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