On 12/18/25 4:31 AM, Chen Ridong wrote:
> From: Chen Ridong <chenridong@huawei.com>
>
> Most of the v1-specific code has already been moved to cpuset-v1.c, but
> some parts remain in cpuset.c, such as the handling of CS_SPREAD_PAGE,
> CS_SPREAD_SLAB, and CGRP_CPUSET_CLONE_CHILDREN. These can also be moved
> to cpuset-v1.c.
>
> Additionally, several cpuset members are specific to v1, including
> fmeter, relax_domain_level, and the uf_node node. These should only be
> visible when v1 support is enabled (CONFIG_CPUSETS_V1).
>
> This series relocates the remaining v1-specific code to cpuset-v1.c and
> guards v1-only members with CONFIG_CPUSETS_V1.
>
> The most significant change is the separation of generate_sched_domains()
> into v1 and v2 versions. For v1, the original function is preserved
> with v2-specific code removed, keeping it largely unchanged since v1 is
> deprecated and receives minimal future updates. For v2, all v1-specific
> code has been removed, resulting in a much simpler and more maintainable
> implementation.
>
> ---
>
> v2:
> patch1: remame assert_cpuset_lock_held to lockdep_assert_cpuset_lock_held.
> patch5: remove some unnecessary v1 code.
> patch6: add comment before the goto generate_doms label in the v2 version.
>
> Chen Ridong (6):
> cpuset: add lockdep_assert_cpuset_lock_held helper
> cpuset: add cpuset1_online_css helper for v1-specific operations
> cpuset: add cpuset1_init helper for v1 initialization
> cpuset: move update_domain_attr_tree to cpuset_v1.c
> cpuset: separate generate_sched_domains for v1 and v2
> cpuset: remove v1-specific code from generate_sched_domains
>
> include/linux/cpuset.h | 2 +
> kernel/cgroup/cpuset-internal.h | 42 +++++-
> kernel/cgroup/cpuset-v1.c | 241 +++++++++++++++++++++++++++++-
> kernel/cgroup/cpuset.c | 253 +++++---------------------------
> 4 files changed, 312 insertions(+), 226 deletions(-)
>
For the whole series,
Reviewed-by: Waiman Long <longman@redhat.com>