netdev - Re: [PATCH] net: optimize Berkeley Packet Filter (BPF) processing

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Message-ID: <AANLkTinNDMrpDUxQGjQTReuN7EyIPYNnpfO77jRFIjM7@mail.gmail.com>
Date:	Mon, 21 Jun 2010 10:15:33 +0800
From:	Changli Gao <xiaosuo@...il.com>
To:	Hagen Paul Pfeifer <hagen@...u.net>
Cc:	David Miller <davem@...emloft.net>, shemminger@...tta.com,
	netdev@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] net: optimize Berkeley Packet Filter (BPF) processing

On Mon, Jun 21, 2010 at 5:57 AM, Hagen Paul Pfeifer <hagen@...u.net> wrote:
> * David Miller | 2010-06-20 15:09:28 [-0700]:
>
>>I think from this perspective, the change is fine too, nothing visible
>>to the user is being changed here.
>
> Fine! I have a fundamental question: can we start to use a C language
> extension, known as "Labels as Values" in the kernel? I checked this and at
> least gcc, llvm and icc support this extension (btw: c1x[1] don't mention
> this):
>

FYI: FreeBSD goes even further, and its BPF implementation exploits
JIT in two architectures: i386 and amd64.

-- 
Regards,
Changli Gao(xiaosuo@...il.com)
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