[CRIU] [PATCH v2 3/3] aio: Restore aio ring content

[Kirill Tkhai]

On 21.03.2016 13:15, Pavel Emelyanov wrote:
> On 03/21/2016 01:10 PM, Kirill Tkhai wrote:
> 
>>>> I'm going to add plugin to parasite_check_aios(), and to wait inflight requests
>>>> from there.
>>>>  
>>>>> Anyway, I don't think treating aio ring buffer as regular anonymous memory
>>>>> is good idea.
>>>>
>>>> What do you suggest? Add vma_entry_is_private(entry) | vma_entry_is(entry, VMA_AREA_AIORING)
>>>> every place we used it?
>>>
>>> Not every. My current opinion is that soft-dirty tracking should NOT
>>> be done for AIO rings.
>>
>> So, if we skip AIO on pre-dump, but we will dump it like any other private memory,
>> is this OK for you?
> 
> I tend to think it's not, since these are objects with structure. However
> I don't have string arguments against dumping them as raw blobs _provided_
> we check for ring head magic beforehand.

I don't completely understand you. What is dumping as raw blobs, but not as like memory?

Checking of ring head magic make a sense at a restore, but which way should it be used
at dump?