linux-kernel - Re: [PATCH 0/3] rework netlink skb allocation

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Date:   Thu, 22 Aug 2019 12:04:47 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     jan.dakinevich@...tuozzo.com
Cc:     linux-kernel@...r.kernel.org, den@...tuozzo.com,
        khorenko@...tuozzo.com, jan.dakinevich@...il.com,
        kuznet@....inr.ac.ru, yoshfuji@...ux-ipv6.org, pablo@...filter.org,
        kadlec@...filter.org, fw@...len.de, johannes.berg@...el.com,
        dsahern@...il.com, christian@...uner.io,
        stephen@...workplumber.org, Jason@...c4.com,
        jakub.kicinski@...ronome.com, willemb@...gle.com,
        xiyou.wangcong@...il.com, simon.horman@...ronome.com,
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        bigeasy@...utronix.de, edumazet@...gle.com, lirongqing@...du.com,
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        herbert@...dor.apana.org.au, tglx@...utronix.de, dima@...sta.com,
        netdev@...r.kernel.org, netfilter-devel@...r.kernel.org,
        coreteam@...filter.org
Subject: Re: [PATCH 0/3] rework netlink skb allocation

From: Jan Dakinevich <jan.dakinevich@...tuozzo.com>
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.