linux-kernel - RE: [PATCH v4 15/15] vfio: Add struct device to vfio

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Date:   Fri, 30 Sep 2022 02:03:33 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Alex Williamson <alex.williamson@...hat.com>,
        Jason Gunthorpe <jgg@...pe.ca>
CC:     Zhenyu Wang <zhenyuw@...ux.intel.com>,
        "Wang, Zhi A" <zhi.a.wang@...el.com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        "Joonas Lahtinen" <joonas.lahtinen@...ux.intel.com>,
        "Vivi, Rodrigo" <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Eric Farman <farman@...ux.ibm.com>,
        Matthew Rosato <mjrosato@...ux.ibm.com>,
        Halil Pasic <pasic@...ux.ibm.com>,
        Vineeth Vijayan <vneethv@...ux.ibm.com>,
        "Peter Oberparleiter" <oberpar@...ux.ibm.com>,
        Heiko Carstens <hca@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        Alexander Gordeev <agordeev@...ux.ibm.com>,
        Christian Borntraeger <borntraeger@...ux.ibm.com>,
        Sven Schnelle <svens@...ux.ibm.com>,
        Tony Krowiak <akrowiak@...ux.ibm.com>,
        Jason Herne <jjherne@...ux.ibm.com>,
        Harald Freudenberger <freude@...ux.ibm.com>,
        Diana Craciun <diana.craciun@....nxp.com>,
        "Cornelia Huck" <cohuck@...hat.com>,
        Longfang Liu <liulongfang@...wei.com>,
        "Shameer Kolothum" <shameerali.kolothum.thodi@...wei.com>,
        Yishai Hadas <yishaih@...dia.com>,
        Eric Auger <eric.auger@...hat.com>,
        Kirti Wankhede <kwankhede@...dia.com>,
        Leon Romanovsky <leon@...nel.org>,
        Abhishek Sahu <abhsahu@...dia.com>,
        Christoph Hellwig <hch@...radead.org>,
        "intel-gvt-dev@...ts.freedesktop.org" 
        <intel-gvt-dev@...ts.freedesktop.org>,
        "intel-gfx@...ts.freedesktop.org" <intel-gfx@...ts.freedesktop.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-s390@...r.kernel.org" <linux-s390@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "Liu, Yi L" <yi.l.liu@...el.com>
Subject: RE: [PATCH v4 15/15] vfio: Add struct device to vfio_device

> From: Alex Williamson <alex.williamson@...hat.com>
> Sent: Friday, September 30, 2022 2:24 AM
> 
> On Thu, 29 Sep 2022 14:49:56 -0300
> Jason Gunthorpe <jgg@...pe.ca> wrote:
> 
> > On Thu, Sep 29, 2022 at 10:55:19AM -0600, Alex Williamson wrote:
> > > Hi Kevin,
> > >
> > > This introduced the regression discovered here:
> > >
> > >
> https://lore.kernel.org/all/20220928125650.0a2ea297.alex.williamson@redh
> at.com/
> > >
> > > Seems we're not releasing the resources when removing an mdev.  This is
> > > a regression, so it needs to be fixed or reverted before the merge
> > > window.  Thanks,
> >
> > My guess at the fix for this:
> >
> > https://lore.kernel.org/r/0-v1-013609965fe8+9d-
> vfio_gvt_unregister_jgg@...dia.com
> 
> Indeed this seems to work  I'll look for acks and further reviews from
> Intel folks. Thanks!
> 

Thanks Jason for baking a quick fix! I've acked it.