Re: [PATCH 1/2] dax: Remove access to page->index

[Matthew Wilcox <willy@infradead.org>]

On Wed, Jan 08, 2025 at 10:24:00AM +1100, Alistair Popple wrote:
> On Mon, Jan 06, 2025 at 04:43:13PM -0800, Dan Williams wrote:
> > Matthew Wilcox (Oracle) wrote:
> > > This looks like a complete mess (why are we setting page->index at page
> > > fault time?)
> > 
> > Full story in Alistair's patches, but this a side effect of bypassing
> > the page allocator for instantiating file-backed mappings.
> > 
> > > but I no longer care about DAX, and there's no reason to
> > > let DAX hold us back from removing page->index.
> > 
> > Question is whether to move ahead with this now and have Alistair
> > rebase, or push ahead with getting Alistair's series into -next? I am
> > hoping that Alistair's series can move ahead this cycle, but still
> > catching up on the latest after the holiday break.
> 
> The rebase probably isn't that hard, but if we push ahead with my series it's
> largely unnecessary as it moves this over to the folio anyway. I've just posted
> a respin on top of next-20241216 -
> https://lore.kernel.org/linux-mm/cover.425da7c4e76c2749d0ad1734f972b06114e02d52.1736221254.git-series.apopple@nvidia.com/

Looking at what's in linux-next today, there's no changes to
dax_set_mapping(), so this patch still applies cleanly (patch 2/2 is
obviated).  Can you look at this patch (1/2) again and apply it if it
seems good?