From: Heiko Carstens <hca@linux.ibm.com>
To: Euan Bourke <euan@linux.ibm.com>
Cc: gor@linux.ibm.com, agordeev@linux.ibm.com,
borntraeger@linux.ibm.com, svens@linux.ibm.com,
meted@linux.ibm.com, linux-s390@vger.kernel.org
Subject: Re: [PATCH v2] s390/hiperdispatch: use system_dfl_wq to reschedule hd_capacity_work
Date: Mon, 14 Sep 2026 19:18:38 +0200 [thread overview]
Message-ID: <20260914171838.14910E0f-hca@linux.ibm.com> (raw)
In-Reply-To: <20260911091309.1238604-1-euan@linux.ibm.com>
On Fri, Sep 11, 2026 at 11:13:09AM +0200, Euan Bourke wrote:
> In hd_enable_hiperdispatch(), hd_capacity_work is scheduled on
> system_dfl_wq, however the work function reschedules itself with
> schedule_delayed_work(), which uses system_percpu_wq.
>
> Hiperdispatch does not benefit from using the percpu workqueue. Use
> queue_delayed_work() with system_dfl_wq for consistency.
>
> Changing the workqueue from system_percpu_wq to system_dfl_wq causes no
> functional changes.
>
> Signed-off-by: Euan Bourke <euan@linux.ibm.com>
> ---
> v2:
> - use queue_delayed_work() instead of mod_delayed_work()
>
> arch/s390/kernel/hiperdispatch.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Applied, thanks!
prev parent reply other threads:[~2026-09-14 17:18 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-11 9:13 [PATCH v2] s390/hiperdispatch: use system_dfl_wq to reschedule hd_capacity_work Euan Bourke
2026-09-11 9:20 ` sashiko-bot
2026-09-11 9:47 ` Mete Durlu
2026-09-14 17:18 ` Heiko Carstens [this message]
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