Re: [PATCH 1/2] mm/damon/core: score an unmeasured PSI goal as not achieved for the temporal tuner

[sashiko-bot@kernel.org]

> A newly created or committed PSI quota goal has no previous sample.
> Commit a68878f83ae6 ("mm/damon/core: handle uninitialized
> damos_quota_goal->last_psi_total") scores the first tuning round as
> achieved to preserve the consist tuner's quota, since the feedback
> loop returns its input unchanged at that score.
> 
> The temporal tuner sets the quota to zero for an achieved goal. This
> skips the first charge window and the window after each goal commit.
> Committing the PSI goal before every tuning round keeps the scheme
> idle indefinitely.
> 
> Score an unmeasured PSI goal as not achieved for the temporal tuner,
> so a new scheme can run in its first window. Keep the consist tuner's
> behaviour unchanged.
> 
> Fixes: a68878f83ae6 ("mm/damon/core: handle uninitialized damos_quota_goal->last_psi_total")
> Cc: <stable@vger.kernel.org> # 7.1.x
> Assisted-by: LLM
> Signed-off-by: Karl Mehltretter <kmehltretter@gmail.com>

Sashiko has reviewed this patch and found no issues. It looks great!

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Sashiko AI review · https://sashiko.dev/#/patchset/20260915060937.3423-1-kmehltretter@gmail.com?part=1