linux-kernel - Re: [PATCH] PCI: Avoid work_on

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Message-Id: <20251230144405.1251-1-guojinhui.liam@bytedance.com>
Date: Tue, 30 Dec 2025 22:44:05 +0800
From: "Jinhui Guo" <guojinhui.liam@...edance.com>
To: <guojinhui.liam@...edance.com>
Cc: <alexander.h.duyck@...ux.intel.com>, <bhelgaas@...gle.com>, 
	<bvanassche@....org>, <dan.j.williams@...el.com>, 
	<gregkh@...uxfoundation.org>, <linux-kernel@...r.kernel.org>, 
	<linux-pci@...r.kernel.org>, <stable@...r.kernel.org>, <tj@...nel.org>
Subject: Re: [PATCH] PCI: Avoid work_on_cpu() in async probe workers

On Tue, Dec 30, 2025 at 22:27:36PM +0800, Jinhui Guo wrote
> 2. Replace work_on_cpu() with queue_work_node(system_dfl_wq) + flush_work()
>    to enable parallel probing when PROBE_PREFER_ASYNCHRONOUS is disabled.

Sorry for the mis-statement—probing is serial, not parallel:

2. Replace work_on_cpu() with queue_work_node(system_dfl_wq) + flush_work()
   to enable serial probing when PROBE_PREFER_ASYNCHRONOUS is disabled.

Thanks,
Jinhui