netdev - Re: [PATCH v3 6/6] PCI: hv: Use async probing to reduce boot time

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Message-ID: <ZEWCyaaq+wzyyQp+@corigine.com>
Date:   Sun, 23 Apr 2023 21:11:05 +0200
From:   Simon Horman <simon.horman@...igine.com>
To:     Dexuan Cui <decui@...rosoft.com>
Cc:     bhelgaas@...gle.com, davem@...emloft.net, edumazet@...gle.com,
        haiyangz@...rosoft.com, jakeo@...rosoft.com, kuba@...nel.org,
        kw@...ux.com, kys@...rosoft.com, leon@...nel.org,
        linux-pci@...r.kernel.org, lpieralisi@...nel.org,
        mikelley@...rosoft.com, pabeni@...hat.com, robh@...nel.org,
        saeedm@...dia.com, wei.liu@...nel.org, longli@...rosoft.com,
        boqun.feng@...il.com, ssengar@...rosoft.com, helgaas@...nel.org,
        linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
        josete@...rosoft.com, stable@...r.kernel.org
Subject: Re: [PATCH v3 6/6] PCI: hv: Use async probing to reduce boot time

On Wed, Apr 19, 2023 at 07:40:37PM -0700, Dexuan Cui wrote:
> Commit 414428c5da1c ("PCI: hv: Lock PCI bus on device eject") added
> pci_lock_rescan_remove() and pci_unlock_rescan_remove() in
> create_root_hv_pci_bus() and in hv_eject_device_work() to address the
> race between create_root_hv_pci_bus() and hv_eject_device_work(), but it
> turns that grabing the pci_rescan_remove_lock mutex is not enough:

nit: s/grabing/grabbing/g

> refer to the earlier fix "PCI: hv: Add a per-bus mutex state_lock".

...