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From: Randall Stewart <rrs@lakerest.net>
To: Bruce Simpson <bms@incunabulum.net>
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Date: Sun, 14 Mar 2010 04:54:11 +0900
References: <201003122258.o2CMwqDM039077@svn.freebsd.org>
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Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org,
	src-committers@FreeBSD.org, "Robert N. M. Watson" <rwatson@FreeBSD.org>
Subject: Re: svn commit: r205104 - in head/sys: dev/xen/netback netinet
	netinet6
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Hmm... M_PROTO* good idea ;-)


On Mar 13, 2010, at 10:56 PM, Bruce Simpson wrote:

> On 03/13/10 13:53, Robert N. M. Watson wrote:
>> On Mar 13, 2010, at 1:50 PM, Randall Stewart wrote:
>>
>>> I could refactor that this way if you want... it would mean a few  
>>> more de-ref's and
>>> looking to see if its a v4 or v6 packet and then doing the proper  
>>> offset...
>>>
>
> This is the sort of thing which M_PROTO* flags are good for.
>
> Derefs in the hot path should be amortized whenever that makes sense.
>

------------------------------
Randall Stewart
803-317-4952 (cell)
803-345-0391(direct)