From mboxrd@z Thu Jan  1 00:00:00 1970
From: Yinghai Lu <yinghai@kernel.org>
Subject: Re: [PATCH v2 4/6] ACPI, PCI: add acpi_pci_roots protection
Date: Thu, 13 Sep 2012 14:17:04 -0700
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To: Bjorn Helgaas <bhelgaas@google.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>, linux-pci@vger.kernel.org, linux-acpi@vger.kernel.org, kaneshige.kenji@jp.fujitsu.com, jiang.liu@huawei.com

On Thu, Sep 13, 2012 at 12:39 PM, Bjorn Helgaas <bhelgaas@google.com> wrote:
> If I understand you correctly, you're agreeing that if we change the
> .add()/.remove() interfaces, there is no need for RCU here.  Correct
> me if I'm wrong.

yes.

just passing acpi_pci_root point or acpi_device pointer.

Yinghai