netdev - Re: [RFC][PATCH] Fixing SA/SP dumps on netlink/af

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Date:	Thu, 17 Jan 2008 07:42:30 -0500
From:	jamal <hadi@...erus.ca>
To:	Timo Teräs <timo.teras@....fi>
Cc:	Herbert Xu <herbert@...dor.apana.org.au>, netdev@...r.kernel.org,
	David Miller <davem@...emloft.net>
Subject: Re: [RFC][PATCH] Fixing SA/SP dumps on netlink/af_key

On Thu, 2008-17-01 at 07:54 +0200, Timo Teräs wrote:

> You listen for the events. It is guaranteed that if the dumping code
> does return the entry to be deleted, the deletion notification will
> occur after that dump entry.

Ok, sounds reasonable - as long as there is a known order for
occurances, then there will be no ambiguity.
I am assuming that the same ordering will happen with
updates/modifications?
To go back to what i suggested earlier - is it possible to have this in
two stages? First pfkey with expected behavior being the same as current
netlink; then later the optimizations you are talking about.

Looking at the pfkey RFC one more time, heres a funny quote:
"
The dump message is used for debugging
purposes only and is not intended for production use.
"

One thing Dave mentioned thats extremely important is to ensure no ABI breakage. 
Think of racoon 0.6 which knows nothing of this; it should continue to work.

Dave: One reason i paid attention to this is because it was on your TODO
list from netconf 2005 ;-> It has just been sitting in the background
memory cells since.

cheers,
jamal

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