Re: [PATCH-next v2 0/2] ipvs: Fix incorrect use of HK_TYPE_KTHREAD housekeeping cpumask

Julian Anastasov
2026-04-03T14:16:18Z

Hello,

On Tue, 31 Mar 2026, Waiman Long wrote:

> v2:
> - Rebased on top of linux-next
>
> Since commit 041ee6f3727a ("kthread: Rely on HK_TYPE_DOMAIN for preferred
> affinity management"), the HK_TYPE_KTHREAD housekeeping cpumask may no
> longer be correct in showing the actual CPU affinity of kthreads that
> have no predefined CPU affinity. As the ipvs networking code is still
> using HK_TYPE_KTHREAD, we need to make HK_TYPE_KTHREAD reflect the
> reality.
>
> This patch series makes HK_TYPE_KTHREAD an alias of HK_TYPE_DOMAIN
> and uses RCU to protect access to the HK_TYPE_KTHREAD housekeeping
> cpumask.
>
> Waiman Long (2):
> sched/isolation: Make HK_TYPE_KTHREAD an alias of HK_TYPE_DOMAIN
> ipvs: Guard access of HK_TYPE_KTHREAD cpumask with RCU

The patchset looks good to me for nf-next, thanks!

Acked-by: Julian Anastasov <ja@ssi.bg>

Pablo, Florian, as a bugfix this patchset missed
the chance to be applied before the changes that are in
nf-next in ip_vs.h, there is little fuzz there. If there
is no chance to resolve it somehow, we can apply it
on top of nf-next where it now applies successfully.

>
> include/linux/sched/isolation.h | 6 +++++-
> include/net/ip_vs.h | 20 ++++++++++++++++----
> net/netfilter/ipvs/ip_vs_ctl.c | 13 ++++++++-----
> 3 files changed, 29 insertions(+), 10 deletions(-)

Regards

--
Julian Anastasov <ja@ssi.bg>