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

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Message-Id: <20241007152833.2282199-1-visitorckw@gmail.com>
Date: Mon,  7 Oct 2024 23:28:27 +0800
From: Kuan-Wei Chiu <visitorckw@...il.com>
To: xavier_qy@....com,
	longman@...hat.com,
	lizefan.x@...edance.com,
	tj@...nel.org,
	hannes@...xchg.org,
	mkoutny@...e.com,
	akpm@...ux-foundation.org
Cc: jserv@...s.ncku.edu.tw,
	linux-kernel@...r.kernel.org,
	cgroups@...r.kernel.org,
	Kuan-Wei Chiu <visitorckw@...il.com>
Subject: [PATCH v2 0/6] Enhance union-find with KUnit tests and optimization improvements

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.

Regards,
Kuan-Wei

---

Changes in v2:
- Modify uf_find() to compare with root instead of node in the while loop
- s/Union-Find/union-find/
- Add myself to MAINTAINERS

v1: https://lore.kernel.org/lkml/20241005214938.2147393-1-visitorckw@gmail.com/

Kuan-Wei Chiu (6):
  lib/union_find: Add EXPORT_SYMBOL() for uf_find() and uf_union()
  lib/union_find: Change uf_union() return type to bool
  lib: Add KUnit tests for union-find implementation
  lib/union_find: Optimize uf_find() with enhanced path compression
  cgroup/cpuset: Optimize domain counting using updated uf_union()
  MAINTAINERS: Add Kuan-Wei as co-maintainer for union-find

 MAINTAINERS                |  2 ++
 include/linux/union_find.h |  2 +-
 kernel/cgroup/cpuset.c     | 10 ++----
 lib/Kconfig.debug          | 12 +++++++
 lib/Makefile               |  1 +
 lib/union_find.c           | 22 +++++++++---
 lib/union_find_kunit.c     | 74 ++++++++++++++++++++++++++++++++++++++
 7 files changed, 110 insertions(+), 13 deletions(-)
 create mode 100644 lib/union_find_kunit.c

-- 
2.34.1