Re: [PATCH v2] fb_defio: Remove custom address_space_operations

[Nathan Chancellor]

On 5/30/2021 2:14 PM, Matthew Wilcox wrote:
> On Sun, May 30, 2021 at 12:13:05PM -0700, Nathan Chancellor wrote:
> > Hi Matthew,
> >
> > On Wed, Mar 10, 2021 at 06:55:30PM +0000, Matthew Wilcox (Oracle) wrote:
> > > There's no need to give the page an address_space.  Leaving the
> > > page->mapping as NULL will cause the VM to handle set_page_dirty()
> > > the same way that it's handled now, and that was the only reason to
> > > set the address_space in the first place.
> > >
> > > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
> > > Reviewed-by: Christoph Hellwig <hch@xxxxxx>
> > > Reviewed-by: William Kucharski <william.kucharski@xxxxxxxxxx>
> >
> > This patch in mainline as commit ccf953d8f3d6 ("fb_defio: Remove custom
> > address_space_operations") causes my Hyper-V based VM to no longer make
> > it to a graphical environment.
>
> Hi Nathan,
>
> Thanks for the report.  I sent Daniel a revert patch with a full
> explanation last week, which I assume he'll queue up for a pull soon.
> You can just git revert ccf953d8f3d6 for yourself until that shows up.
> Sorry for the inconvenience.

Thank you for the quick response! I will keep an eye out for the patch 
while reverting it locally in the meantime.

Cheers,
Nathan