Re: [PATCH v3 1/1] Create debugfs file with hyper-v balloon usage information

[Alexander Atanasov]

Hello,

On 3.09.22 7:37, Michael Kelley (LINUX) wrote:
> Alexander -- I finally caught up on the long discussion of balloon
> driver reporting that occurred over much of August.  I think your
> original plan had been for each of the balloon driver to report
> useful information in debugfs.  But as a result of the discussion,
> it looks like virtio-balloon will be putting the information in
> /proc/meminfo.  If that's the case, it seems like we should
> drop these changes to the Hyper-V balloon driver,  and have
> the Hyper-V balloon driver take the same approach as
> virtio-balloon.
>
> These Hyper-V balloon driver changes have already gone
> into 6.0-rc1.  If we're going to drop them, we should do
> the revert before 6.0 is done.
>
> Thoughts?


There is a lot of information that would not go into /proc/meminfo.
vmware have only one file with all, virtio have separate file for 
features to expose. HV doesn't have other files so i think file is still 
useful. Only the memory in kB will go into the /proc/meminfo - 
pages/page sizes would not. But i am not sure how to handle the 
situation since i guess it will take time for the MM guys to decide - 
there is currently only one Ack on the series.



--
Regards,
Alexander Atanasov