From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [PATCH net-next v3 3/4] net: use skb->priority for overloading skb->dropcount and skb->reserved_tailroom instead of skb->mark Date: Tue, 24 Feb 2015 06:25:49 -0800 Message-ID: <1424787949.5565.76.camel@edumazet-glaptop2.roam.corp.google.com> References: <1424713924-6821-2-git-send-email-eyal.birger@gmail.com> <1424713924-6821-4-git-send-email-eyal.birger@gmail.com> <20150223205633.7fbd08d4@halley> <20150223.164801.842537100812023841.davem@davemloft.net> <1424783915.5565.74.camel@edumazet-glaptop2.roam.corp.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: David Miller , Shmulik Ladkani , Eric Dumazet , netdev@vger.kernel.org To: Eyal Birger Return-path: Received: from mail-ie0-f180.google.com ([209.85.223.180]:45477 "EHLO mail-ie0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752309AbbBXOZv (ORCPT ); Tue, 24 Feb 2015 09:25:51 -0500 Received: by iecat20 with SMTP id at20so32255445iec.12 for ; Tue, 24 Feb 2015 06:25:50 -0800 (PST) In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: 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.