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

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Message-ID: <SA1PR21MB1335BE6CEF491596BCF62FC5BF679@SA1PR21MB1335.namprd21.prod.outlook.com>
Date:   Mon, 24 Apr 2023 20:50:12 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     Simon Horman <simon.horman@...igine.com>
CC:     "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "edumazet@...gle.com" <edumazet@...gle.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Jake Oshins <jakeo@...rosoft.com>,
        "kuba@...nel.org" <kuba@...nel.org>, "kw@...ux.com" <kw@...ux.com>,
        KY Srinivasan <kys@...rosoft.com>,
        "leon@...nel.org" <leon@...nel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "lpieralisi@...nel.org" <lpieralisi@...nel.org>,
        "Michael Kelley (LINUX)" <mikelley@...rosoft.com>,
        "pabeni@...hat.com" <pabeni@...hat.com>,
        "robh@...nel.org" <robh@...nel.org>,
        "saeedm@...dia.com" <saeedm@...dia.com>,
        "wei.liu@...nel.org" <wei.liu@...nel.org>,
        Long Li <longli@...rosoft.com>,
        "boqun.feng@...il.com" <boqun.feng@...il.com>,
        Saurabh Singh Sengar <ssengar@...rosoft.com>,
        "helgaas@...nel.org" <helgaas@...nel.org>,
        "linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-rdma@...r.kernel.org" <linux-rdma@...r.kernel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Jose Teuttli Carranco <josete@...rosoft.com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: RE: [PATCH v3 6/6] PCI: hv: Use async probing to reduce boot time

> From: Simon Horman <simon.horman@...igine.com>
> Sent: Sunday, April 23, 2023 12:11 PM
> To: Dexuan Cui <decui@...rosoft.com>
> ...
> 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
Thanks for spotting this! I suppose the maintainer(s) would help fix this.