# Re: \[PATCH 13/17\] watch\_queue: Implement mount topology and attribute change notifications \[ver \#5\]

- From: Miklos Szeredi \<miklos@szeredi.hu\>
- Date: 2020-08-05 19:51:27 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2020/08/186021
- Thread: https://ratatoskr.run/keyrings/2020/03/175521/t.md

```text
On Wed, Aug 5, 2020 at 1:36 PM Ian Kent [ref] wrote:
>

> I can see in the kernel code that an error is returned if the message
> buffer is full when trying to add a message, I just can't see where
> to get it in the libmount code.
>
> That's not really a communication protocol problem.
>
> Still I need to work out how to detect it, maybe it is seen by
> the code in libmount already and I simply can't see what I need
> to do to recognise it ...
>
> So I'm stuck wanting to verify I have got everything that was
> sent and am having trouble moving on from that.

This is the commit that should add the overrun detection capability:

e7d553d69cf6 ("pipe: Add notification lossage handling")

Thanks,
Miklos
```