[PATCH v2] dma-buf: Add DmaBufTotal counter in meminfo

[Peter.Enderborg at sony.com]

On 4/20/21 3:34 PM, Daniel Stone wrote:
> Hi Peter,
>
> On Fri, 16 Apr 2021 at 13:34, Peter Enderborg <peter.enderborg at sony.com <mailto:peter.enderborg at sony.com>> wrote:
>
>     This adds a total used dma-buf memory. Details
>     can be found in debugfs, however it is not for everyone
>     and not always available. dma-buf are indirect allocated by
>     userspace. So with this value we can monitor and detect
>     userspace applications that have problems.
>
>
> FWIW, this won't work super well for Android where gralloc is implemented as a system service, so all graphics usage will instantly be accounted to it.
>
> Cheers,
> Daniel 

This resource allocation is a big part of why we need it. Why should it not work?