Re: [GIT PULL] Memory folios for v5.15

[Jason Gunthorpe]

On Tue, Oct 05, 2021 at 07:30:06PM +0100, Matthew Wilcox wrote:

> Outside of core MM developers, I'm not sure that a lot of people
> know that a struct page might represent 2^n pages of memory.  Even
> architecture maintainers seem to be pretty fuzzy on what
> flush_dcache_page() does for compound pages:
> https://lore.kernel.org/linux-arch/20200818150736.GQ17456@xxxxxxxxxxxxxxxxxxxx/

I definitely second that opinion

A final outcome where we still have struct page refering to all kinds
of different things feels like a missed opportunity to me.

Jason