Re: [PATCH 1/2] cgroup/dmem: add per-region event counters

[Tejun Heo]

On Wed, Jun 24, 2026 at 11:11:06AM +0800, Hongfu Li wrote:
> Add dmem.events to report hierarchical low/max event counts per DMEM
> region.  Increment counters on dmem.max allocation failures and
> dmem.low protection events.  The file is available for non-root cgroups
> only.

Please don't double space in descs or comments. Also, maybe it's obvious but
it'd help if you list why and how this is useful. Why do we want to add
this?

> +  dmem.events
> +	A read-only file that reports the number of times each cgroup
> +	has hit its configured memory limits.  The format lists each
> +	region on a single line, followed by the event counters::
> +
> +	  drm/0000:03:00.0/vram0 low 0 max 3
> +	  drm/0000:03:00.0/stolen low 0 max 0

This isn't a supported file format. Please read the documentation on allowed
formats.

Thanks.

-- 
tejun