Re: use-after-free in srpt_enable_tpg()

From: Mike Christie
Date: Thu Jun 30 2022 - 12:40:47 EST


On 6/27/22 11:37 AM, Bart Van Assche wrote:
> On 6/27/22 00:09, lizhijian@xxxxxxxxxxx wrote:
>> So far, I doubt if the previous defect of configfs mentioned in
>> 9b64f7d0b: "(RDMA/srpt: Postpone HCA removal until after configfs
>> directory removal)" has got a better solution. if not, i have no a
>> clear mechanism to avoid it yet.
>>
>> feedbacks are very welcome.
> Mike, are you perhaps aware of any plans to add functions to the LIO core for removing tpg and wwn objects?
>

I don't know any work being done in this area. I was only working
on the refcounting/configfs parts for sessions in those configfs/sysfs
patchsets. However, I think I hit similar issues with the session.
I went around the world with solutions but didn't really like them
so I never pushed the patches for inclusion.

What was the hang caused by 9b64f7d0bb0a?