netdev - Re: [PATCH v3] net: af_packet: don't call tpacket_destruct

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 27 Sep 2010 05:30:47 +0000
From:	Jarek Poplawski <jarkao2@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	xiaosuo@...il.com, eric.dumazet@...il.com, socketcan@...tkopp.net,
	mst@...hat.com, netdev@...r.kernel.org
Subject: Re: [PATCH v3] net: af_packet: don't call tpacket_destruct_skb()
	until the skb is sent out

On Sun, Sep 26, 2010 at 06:22:08PM -0700, David Miller wrote:
> From: Jarek Poplawski <jarkao2@...il.com>
> Date: Fri, 24 Sep 2010 06:36:23 +0000
> 
> > af_packet could check some flag which guarantees the queued dev can do
> > skb_orphan after the real xmit and copy buffers otherwise.
> 
> Jarek, we pre-orphan SKBs in the core way before device even gets
> the packet.

I'm not sure which place in the core do you mean; skb_orphan_try() in
dev_hard_start_xmit() depends on ->tx_flags.

Jarek P.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html