[PATCH v4 net-next] fix unsafe set_memory_rw from softirq

[David Miller]

From: Eric Dumazet <eric.dumazet at gmail.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 at plumgrid.com>
> 
> Acked-by: Eric Dumazet <edumazet at google.com>

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