Re: [PATCH v5 0/1] mm/damon: add node_eligible_mem_bp and node_ineligible_mem_bp goal metrics

SeongJae Park
2026-04-04T19:53:43Z

Hello Ravi,

On Fri, 3 Apr 2026 18:22:14 -0700 Ravi Jonnalagadda <ravis.opensrc@gmail.com> wrote:

> This patch introduces two new DAMOS quota goal metrics for controlling
> memory distribution in heterogeneous memory systems (e.g., DRAM and CXL
> memory tiering) using physical address (PA) mode monitoring.
>
> Changes since v4:
> =================
> https://lore.kernel.org/linux-mm/20260320190453.1430-1-ravis.opensrc@gmail.com/
>
> - Fixed commit message description for DAMOS_QUOTA_NODE_INELIGIBLE_MEM_BP
> per review feedback
> - Added clarifying comment for ops-common.h include (for damon_get_folio())
> - Fixed build error when CONFIG_DAMON_PADDR is disabled by adding
> #ifdef CONFIG_DAMON_PADDR guards around functions using damon_get_folio()
> - Dropped RFC tag per maintainer feedback

Thank you for revisioning while addressing my comments on the previous version!

>
> This patch is based on top of damon/next.

Maybe because of this, sashiko was unable to review this.

To my understanding, there is no real reason to make this based on damon/next.
And I'd like to get sashiko review for this patch. Could you please rebase
this to latest mm-new and repost for that?

>
> Background and Motivation
> =========================
>
> In heterogeneous memory systems, controlling memory distribution across
> NUMA nodes is essential for performance optimization. This patch enables
> system-wide page distribution with target-state goals such as "maintain
> 30% of scheme-eligible memory on CXL" using PA-mode DAMON schemes.
[...]

Other than the lack of the sashiko review, this cover letter looks good to me.

Thanks,
SJ …