netdev - Re: [PATCH v2 1/2] tcp: add generic netlink support for tcp

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Date:	Wed, 5 Sep 2012 00:00:39 +0300 (EEST)
From:	Julian Anastasov <ja@....bg>
To:	David Miller <davem@...emloft.net>
cc:	eric.dumazet@...il.com, netdev@...r.kernel.org,
	shemminger@...tta.com, paulmck@...ux.vnet.ibm.com
Subject: Re: [PATCH v2 1/2] tcp: add generic netlink support for
 tcp_metrics


	Hello,

On Tue, 4 Sep 2012, David Miller wrote:

> From: Julian Anastasov <ja@....bg>
> Date: Mon, 3 Sep 2012 11:22:15 +0300 (EEST)
> 
> > 	BTW, is it appropriate to use kmem_cache for
> > metrics and as result call_rcu for freeing?
> 
> I think it would work as things are implemented currently in
> slab/slub/slob, however I would not rely upon it.
> 
> If you do move to a SLAB cache for the tcp metrics objects,
> you might consider SLAB_DESTROY_BY_RCU.  It's a very delicate
> facility (read the huge comment in linux/slab.h) but I think
> it provides the semantics we need for TCP metrics blobs.

	ok, I'll not mix it with the genl support
because I'm not prepared to do it soon...

> Looking forward to v3 :-)

	Sending...

Regards

--
Julian Anastasov <ja@....bg>
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