From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH v2] net: add a truesize parameter to skb_add_rx_frag() Date: Sun, 25 Mar 2012 13:30:17 -0400 (EDT) Message-ID: <20120325.133017.755244992502310658.davem@davemloft.net> References: <1332508626.4858.20.camel@edumazet-laptop> <1332583173.3487.3.camel@edumazet-laptop> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, wey-yi.w.guy@intel.com To: eric.dumazet@gmail.com Return-path: Received: from shards.monkeyblade.net ([198.137.202.13]:50642 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755978Ab2CYRaV (ORCPT ); Sun, 25 Mar 2012 13:30:21 -0400 In-Reply-To: <1332583173.3487.3.camel@edumazet-laptop> Sender: netdev-owner@vger.kernel.org List-ID: From: Eric Dumazet Date: Sat, 24 Mar 2012 02:59:33 -0700 > skb_add_rx_frag() API is misleading. > > Network skbs built with this helper can use uncharged kernel memory and > eventually stress/crash machine in OOM. > > Add a 'truesize' parameter and then fix drivers in followup patches. > > Signed-off-by: Eric Dumazet Applied.