netdev - Re: [PATCH v4 net-next] fix unsafe set_memory

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Message-Id: <20131007.151723.1874328502711969492.davem@davemloft.net>
Date:	Mon, 07 Oct 2013 15:17:23 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	ast@...mgrid.com, dborkman@...hat.com, edumazet@...gle.com,
	heiko.carstens@...ibm.com, linux-arm-kernel@...ts.infradead.org,
	linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH v4 net-next] fix unsafe set_memory_rw from softirq

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Sun, 06 Oct 2013 09:56:32 -0700

> On Fri, 2013-10-04 at 00:14 -0700, Alexei Starovoitov wrote:
>> on x86 system with net.core.bpf_jit_enable = 1
> 
>> cannot reuse jited filter memory, since it's readonly,
>> so use original bpf insns memory to hold work_struct
>> 
>> defer kfree of sk_filter until jit completed freeing
>> 
>> tested on x86_64 and i386
>> 
>> Signed-off-by: Alexei Starovoitov <ast@...mgrid.com>
> 
> Acked-by: Eric Dumazet <edumazet@...gle.com>

I've decided to apply this to 'net', thanks.
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