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.