Re: [PATCH] iomap: Move page_done callback under the folio lock

[Christoph Hellwig <hch@infradead.org>]

On Tue, Dec 13, 2022 at 12:03:41PM -0800, Darrick J. Wong wrote:
> On Tue, Dec 13, 2022 at 08:48:33PM +0100, Andreas Gruenbacher wrote:
> > Hi Darrick,
> > 
> > I'd like to get the following iomap change into this merge window.  This
> > only affects gfs2, so I can push it as part of the gfs2 updates if you
> > don't mind, provided that I'll get your Reviewed-by confirmation.
> > Otherwise, if you'd prefer to pass this through the xfs tree, could you
> > please take it?
> 
> I don't mind you pushing changes to ->page_done through the gfs2 tree,
> but don't you need to move the other callsite at the bottom of
> iomap_write_begin?

Yes.  And if we touch this anyway it really should switch to passing
a folio, which also nicely breaks any in progress code (if there is any)
and makes them notice the change.

That being said, do you mean 6.2 with "this window"?  Unless the gfs2
changes are a critical bug fix, I don't think Linux will take them if
applied after 6.1 was released.