linux-kernel - [PATCH 0/2] cgroup/cpuset: Miscellaneous cleanup

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Message-ID: <20251020023207.177809-1-longman@redhat.com>
Date: Sun, 19 Oct 2025 22:32:05 -0400
From: Waiman Long <longman@...hat.com>
To: Tejun Heo <tj@...nel.org>,
	Johannes Weiner <hannes@...xchg.org>,
	Michal Koutný <mkoutny@...e.com>
Cc: cgroups@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Chen Ridong <chenridong@...wei.com>,
	Waiman Long <longman@...hat.com>
Subject: [PATCH 0/2] cgroup/cpuset: Miscellaneous cleanup

This series consists of 2 independent cleanup patches. The first one
eliminates the tracking of the number of child partitions as that value
isn't that useful anymore simplifying the code. The second one change
callback_lock into raw_spinlock_t to reduce cpuset operation overhead in
a PREEMPT_RT setting.

Waiman Long (2):
  cgroup/cpuset: Don't track # of local child partitions
  cgroup/cpuset: Change callback_lock to raw_spinlock_t

 kernel/cgroup/cpuset-internal.h |   3 -
 kernel/cgroup/cpuset.c          | 135 ++++++++++++++------------------
 2 files changed, 60 insertions(+), 78 deletions(-)

-- 
2.51.0