Re: [PATCH 06/12] md-cluster: add the error check if failed to get dlm lock

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Hi Goldwyn,

Goldwyn Rodrigues wrote:
> Hi Guoqing,
>
> On 07/10/2015 04:01 AM, Guoqing Jiang wrote:
>> In complicated cluster environment, it is possible that the
>> dlm lock couldn't be get/convert on purpose, the related err
>> info is added for better debug potential issue.
>>
>> For lockres_free, if the lock is blocking by a lock request or
>> conversion request, then dlm_unlock just put it back to grant
>> queue, so need to ensure the lock is free finally.
>
>
> I cannot think of a scenario where a DLM_CANCEL will be returned.
> Could you explain the situation a bit more?
>
Thanks for the review. When the node is receiving message where it needs
to convert message
lock, and lockres_free is invoked if user stop array meanwhile, then the
message lock is put back
to grant queue at the CR mode and message lock is not released, am I
misunderstood the case?

Thanks,
Guoqing
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