Re: [PATCH v2 0/6] Enhance union-find with KUnit tests and optimization improvements

[Christoph Hellwig]

On Mon, Oct 07, 2024 at 11:28:27PM +0800, Kuan-Wei Chiu wrote:
> This patch series adds KUnit tests for the union-find implementation
> and optimizes the path compression in the uf_find() function to achieve
> a lower tree height and improved efficiency. Additionally, it modifies
> uf_union() to return a boolean value indicating whether a merge
> occurred, enhancing the process of calculating the number of groups in
> the cgroup cpuset.

Given that this fairly special union find code is obly used in the
cpuset code, please move the code there rather adding more exports.
Even as-is it is bloating every kernel build even without cgroups
for no good reason.