linux-kernel - RE: [PATCH 1/2] vmbus: unregister device_obj->channels

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Message-ID: <KL1P15301MB00068BDCB63BB1023C1C43A5BF370@KL1P15301MB0006.APCP153.PROD.OUTLOOK.COM>
Date:   Mon, 11 Dec 2017 21:02:14 +0000
From:   Dexuan Cui <decui@...rosoft.com>
To:     Greg KH <gregkh@...uxfoundation.org>
CC:     Stephen Hemminger <stephen@...workplumber.org>,
        "olaf@...fle.de" <olaf@...fle.de>,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        "jasowang@...hat.com" <jasowang@...hat.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "apw@...onical.com" <apw@...onical.com>,
        "marcelo.cerri@...onical.com" <marcelo.cerri@...onical.com>,
        "devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
        "vkuznets@...hat.com" <vkuznets@...hat.com>,
        "leann.ogasawara@...onical.com" <leann.ogasawara@...onical.com>
Subject: RE: [PATCH 1/2] vmbus: unregister device_obj->channels_kset

> From: Greg KH [mailto:gregkh@...uxfoundation.org]
> Sent: Monday, December 11, 2017 12:59 PM
> To: Dexuan Cui <decui@...rosoft.com>
> Cc: Stephen Hemminger <stephen@...workplumber.org>; olaf@...fle.de;
> Stephen Hemminger <sthemmin@...rosoft.com>; jasowang@...hat.com;
> linux-kernel@...r.kernel.org; stable@...r.kernel.org; apw@...onical.com;
> marcelo.cerri@...onical.com; devel@...uxdriverproject.org;
> vkuznets@...hat.com; leann.ogasawara@...onical.com
> Subject: Re: [PATCH 1/2] vmbus: unregister device_obj->channels_kset
> 
> On Mon, Dec 11, 2017 at 08:41:44PM +0000, Dexuan Cui wrote:
> > > From: devel [mailto:driverdev-devel-bounces@...uxdriverproject.org] On
> > > Behalf Of Stephen Hemminger
> > > Sent: Tuesday, November 28, 2017 9:30 AM
> > > To: Greg KH <gregkh@...uxfoundation.org>
> > > Cc: olaf@...fle.de; Stephen Hemminger <sthemmin@...rosoft.com>;
> > > jasowang@...hat.com; linux-kernel@...r.kernel.org;
> stable@...r.kernel.org;
> > > apw@...onical.com; marcelo.cerri@...onical.com;
> > > devel@...uxdriverproject.org; vkuznets@...hat.com;
> > > leann.ogasawara@...onical.com
> > > Subject: Re: [PATCH 1/2] vmbus: unregister device_obj->channels_kset
> > >
> > > On Tue, 28 Nov 2017 16:56:05 +0100
> > > Greg KH <gregkh@...uxfoundation.org> wrote:
> > >
> > > > On Tue, Nov 14, 2017 at 06:53:32AM -0700,
> kys@...hange.microsoft.com
> > > wrote:
> > > > > From: Dexuan Cui <decui@...rosoft.com>
> > > > >
> > > > > Fixes: c2e5df616e1a ("vmbus: add per-channel sysfs info")
> > > > >
> > > > > Without the patch, a device can't be thoroughly destroyed, because
> > > > > vmbus_device_register() -> kset_create_and_add() still holds a reference
> > > > > to the hv_device's device.kobj.
> > > > >
> > > > > Signed-off-by: Dexuan Cui <decui@...rosoft.com>
> > > > > Cc: Stephen Hemminger <sthemmin@...rosoft.com>
> > > > > Cc: stable@...r.kernel.org
> > > >
> > > > Why is this marked for stable when the patch it "fixes" is in 4.15-rc1?
> > >
> > > It doesn't need to go to stable.
> >
> > Hi Greg,
> > May I know the status of the patch?
> 
> It's still in my "to-apply" queue.  As it's only a 4.15-final thing,
> don't worry, it will get there...
> 
> thanks,
> 
> greg k-h

Thanks a lot, Greg!

-- Dexuan