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 Kuan-Wei Chiu (5): 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 total domain count using updated uf_union() MAINTAINERS | 1 + include/linux/union_find.h | 2 +- kernel/cgroup/cpuset.c | 10 ++---- lib/Kconfig.debug | 12 +++++++ lib/Makefile | 1 + lib/union_find.c | 20 ++++++++--- lib/union_find_kunit.c | 74 ++++++++++++++++++++++++++++++++++++++ 7 files changed, 108 insertions(+), 12 deletions(-) create mode 100644 lib/union_find_kunit.c -- 2.34.1