Re: [PATCH v6 1/3] mm/swap: rename mm/page_io.c to mm/swap_io.c

[Christoph Hellwig <hch@infradead.org>]

On Tue, May 12, 2026 at 06:41:59PM +0800, Baoquan He wrote:
> Codes in mm/page_io.c are only related to swap io, it has
> nothing to do with other page io.

That is true.  At the same time it also (mostly) isn't about all swap
I/O, but specifically about the block based I/O backend for swap, and
secondarily a little bit about helpers for the swsusp I/O to the swap
file, with a little bit generic swap I/O wrappers thrown in.

So the new new isn't grest either.  And I'd rather wait with this until
we can nicely split stuff out - the rest of this series is a good step
toward that, and my swap_activate series is another.  After that we
should be able to stop creating swap_extent structures for
SWP_FS_OPS-based I/O, and contain struct swap_extent with the bio code
and actually create a coherent abstraction.  This will require moving
a bit more code around, though.  My preference for the resulting name
would be swap-block.c or swap-bio.c, but that's up for future
discussion.

Can we just skip this for now?