netdev - Re: [PATCH net-next v3 3/4] net: use skb->priority for overloading skb->dropcount and skb->reserved

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Message-ID: <1424787949.5565.76.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Tue, 24 Feb 2015 06:25:49 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Eyal Birger <eyal.birger@...il.com>
Cc:	David Miller <davem@...emloft.net>,
	Shmulik Ladkani <shmulik.ladkani@...il.com>,
	Eric Dumazet <edumazet@...gle.com>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v3 3/4] net: use skb->priority for overloading
 skb->dropcount and skb->reserved_tailroom instead of skb->mark

On Tue, 2015-02-24 at 16:07 +0200, Eyal Birger wrote:

> > rxpc is buggy right now anyway, as it reads skb->mark _and_ uses
> > sock_recv_ts_and_drops(), so skb->mark value is pretty much void.
> >
> 
> Yes, but it does not seem to use sock_queue_rcv_skb() which sets skb->dropcount.

Well, SO_RXQ_OVFL is broken for these sockets, as we'll report a
dropcount if skb->mark was set.




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