[PATCH v2] nvme-multipath: Early exit if no path is available

[Hannes Reinecke]

On 2/1/21 9:47 AM, Chao Leng wrote:
> 
> 
> On 2021/2/1 15:29, Hannes Reinecke wrote:[ .. ]
>> Urgh. Please, no. That is well impossible to debug.
>> Can you please open-code it to demonstrate where the difference to the 
>> current (and my fixed) versions is?
>> I'm still not clear where the problem is once we applied both patches.
> For example assume the list has three path, and all path is not 
> NVME_ANA_OPTIMIZED:
> head->next = ns1;
> ns1->next = ns2;
> ns2->next = head;
> old->next = ns2;
> 
And this is where I have issues with.
Where does 'old' come from?
Clearly it was part of the list at one point; so what happened to it?

Cheers,

Hannes
-- 
Dr. Hannes Reinecke                Kernel Storage Architect
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