Re: [PATCH 6.12 000/144] 6.12.90-rc1 review

[Wentao Guan]

Build failed, you can drop the commit to build ok, same as 6.18.30-rc1:
git revert 14d9ce90cf4855d638ecbcdb0c208a144d6f991b..
Revert "sched_ext: Use HK_TYPE_DOMAIN_BOOT to detect isolcpus= domain isolation"

Tested-by: Wentao Guan <guanwentao@xxxxxxxxxxxxx>

BRs
Wentao Guan

defconfigs:
https://gist.github.com/opsiff/a840ae9e3d6857f5b7bacb9cdc49f8e9

Log:
In file included from kernel/sched/build_policy.c:63:
kernel/sched/ext.c: In function ‘scx_ops_enable’:
kernel/sched/ext.c:5524:34: error: ‘HK_TYPE_DOMAIN_BOOT’ undeclared (first use in this function); did you mean ‘HK_TYPE_DOMAIN’?
 5524 |         if (housekeeping_enabled(HK_TYPE_DOMAIN_BOOT)) {
      |                                  ^~~~~~~~~~~~~~~~~~~
      |                                  HK_TYPE_DOMAIN

missed HK_TYPE_DOMAIN_BOOT is introduced in this commit:

commit 4fca0e550d506e1c95504c2d9247bc92bf621bf6
Author: Frederic Weisbecker <frederic@xxxxxxxxxx>
Date:   Mon May 26 13:06:21 2025 +0200

    sched/isolation: Save boot defined domain flags

    HK_TYPE_DOMAIN will soon integrate not only boot defined isolcpus= CPUs
    but also cpuset isolated partitions.

    Housekeeping still needs a way to record what was initially passed
    to isolcpus= in order to keep these CPUs isolated after a cpuset
    isolated partition is modified or destroyed while containing some of
    them.

    Create a new HK_TYPE_DOMAIN_BOOT to keep track of those.

    Signed-off-by: Frederic Weisbecker <frederic@xxxxxxxxxx>
    Reviewed-by: Phil Auld <pauld@xxxxxxxxxx>
    Reviewed-by: Waiman Long <longman@xxxxxxxxxx>
    Cc: Ingo Molnar <mingo@xxxxxxxxxx>
    Cc: Marco Crivellari <marco.crivellari@xxxxxxxx>
    Cc: Michal Hocko <mhocko@xxxxxxxx>
    Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
    Cc: Tejun Heo <tj@xxxxxxxxxx>
    Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
    Cc: Vlastimil Babka <vbabka@xxxxxxx>
    Cc: Waiman Long <longman@xxxxxxxxxx>