From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72B4EC3A5A1 for ; Thu, 22 Aug 2019 19:04:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4A4AF20856 for ; Thu, 22 Aug 2019 19:04:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391315AbfHVTEu (ORCPT ); Thu, 22 Aug 2019 15:04:50 -0400 Received: from shards.monkeyblade.net ([23.128.96.9]:47302 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731821AbfHVTEu (ORCPT ); Thu, 22 Aug 2019 15:04:50 -0400 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::d71]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 60320153410AC; Thu, 22 Aug 2019 12:04:48 -0700 (PDT) Date: Thu, 22 Aug 2019 12:04:47 -0700 (PDT) Message-Id: <20190822.120447.538380205267677448.davem@davemloft.net> To: jan.dakinevich@virtuozzo.com Cc: linux-kernel@vger.kernel.org, den@virtuozzo.com, khorenko@virtuozzo.com, jan.dakinevich@gmail.com, kuznet@ms2.inr.ac.ru, yoshfuji@linux-ipv6.org, pablo@netfilter.org, kadlec@netfilter.org, fw@strlen.de, johannes.berg@intel.com, dsahern@gmail.com, christian@brauner.io, stephen@networkplumber.org, Jason@zx2c4.com, jakub.kicinski@netronome.com, willemb@google.com, xiyou.wangcong@gmail.com, simon.horman@netronome.com, john.hurley@netronome.com, pabeni@redhat.com, brouer@redhat.com, bigeasy@linutronix.de, edumazet@google.com, lirongqing@baidu.com, ap420073@gmail.com, ptalbert@redhat.com, herbert@gondor.apana.org.au, tglx@linutronix.de, dima@arista.com, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, coreteam@netfilter.org Subject: Re: [PATCH 0/3] rework netlink skb allocation From: David Miller In-Reply-To: <1566470851-4694-1-git-send-email-jan.dakinevich@virtuozzo.com> References: <1566470851-4694-1-git-send-email-jan.dakinevich@virtuozzo.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Thu, 22 Aug 2019 12:04:49 -0700 (PDT) Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: Jan Dakinevich Date: Thu, 22 Aug 2019 10:48:08 +0000 > Currently, userspace is able to initiate costly high-order allocation in > kernel sending large broadcast netlink message, which is considered > undesirable. At the same time, unicast message are safe in this regard, > because they uses vmalloc-ed memory. > > This series introduces changes, that allow broadcast messages to be > allocated with vmalloc() as well as unicast. I'm tossing this series for the same reason I tossed the AF_UNIX change.