Re: [RFC PATCH net v2 1/2] net/smc: Resolve the race between link group access and termination

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On 05/01/2022 09:27, Wen Gu wrote:
> On 2022/1/3 6:36 pm, Karsten Graul wrote:
>> On 31/12/2021 10:44, Wen Gu wrote:
>>> On 2021/12/29 8:56 pm, Karsten Graul wrote:
>>>> On 28/12/2021 16:13, Wen Gu wrote:
>>>>> We encountered some crashes caused by the race between the access
>>>>> and the termination of link groups.
> So I think checking conn->alert_token_local has the same effect with checking conn->lgr to
> identify whether the link group pointed by conn->lgr is still healthy and able to be used.

Yeah that sounds like a good solution for that! So is it now guaranteed that conn->lgr is always
set and this check can really be removed completely, or should there be a new helper that checks
conn->lgr and the alert_token, like smc_lgr_valid() ?



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