netdev - Re: [bpf PATCH] samples/bpf: all XDP samples should unload xdp/bpf prog on SIGTERM

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Message-ID: <e1df110b-0a8e-6241-0da6-24fc389454d5@iogearbox.net>
Date:   Thu, 16 Aug 2018 02:12:13 +0200
From:   Daniel Borkmann <daniel@...earbox.net>
To:     Y Song <ys114321@...il.com>,
        Jesper Dangaard Brouer <brouer@...hat.com>
Cc:     Daniel Borkmann <borkmann@...earbox.net>,
        Alexei Starovoitov <alexei.starovoitov@...il.com>,
        netdev <netdev@...r.kernel.org>, jhsiao@...hat.com
Subject: Re: [bpf PATCH] samples/bpf: all XDP samples should unload xdp/bpf
 prog on SIGTERM

On 08/15/2018 05:47 PM, Y Song wrote:
> On Wed, Aug 15, 2018 at 7:57 AM, Jesper Dangaard Brouer
> <brouer@...hat.com> wrote:
>> It is common XDP practice to unload/deattach the XDP bpf program,
>> when the XDP sample program is Ctrl-C interrupted (SIGINT) or
>> killed (SIGTERM).
>>
>> The samples/bpf programs xdp_redirect_cpu and xdp_rxq_info,
>> forgot to trap signal SIGTERM (which is the default signal used
>> by the kill command).
>>
>> This was discovered by Red Hat QA, which automated scripts depend
>> on killing the XDP sample program after a timeout period.
>>
>> Fixes: fad3917e361b ("samples/bpf: add cpumap sample program xdp_redirect_cpu")
>> Fixes: 0fca931a6f21 ("samples/bpf: program demonstrating access to xdp_rxq_info")
>> Reported-by: Jean-Tsung Hsiao <jhsiao@...hat.com>
>> Signed-off-by: Jesper Dangaard Brouer <brouer@...hat.com>
> 
> Acked-by: Yonghong Song <yhs@...com>

Applied to bpf, thanks Jesper!