[PATCH v5 05/22] cachefiles: notify user daemon when withdrawing cookie

[JeffleXu]

On 3/21/22 10:20 PM, David Howells wrote:
> Jeffle Xu <jefflexu at linux.alibaba.com> wrote:
> 
>> Notify user daemon that cookie is going to be withdrawed, providing a
> 
> "withdrawn".

Thanks.

> 
>> +	/* CLOSE request doesn't look forward a reply */
> 
> I'm not sure what you mean.

When cookie gets withdrawn, Cachefiles will send a CLOSE request to user
daemon, telling that the associated anon_fd could be closed. But it's
just a hint. User daemon could keep the anon_fd open when it receives
the CLOSE request. After sending the CLOSE request, Cachefiles will go
on the process of withdrawing cookie and won't wait for a reply
synchronously. So CLOSE request is just a hint to user daemon, and it
doesn't need to be replied.


-- 
Thanks,
Jeffle