Re: [PATCH v4 01/25] mm: Introduce struct folio

From: Balbir Singh
Date: Thu Mar 18 2021 - 19:57:44 EST

On Fri, Mar 05, 2021 at 04:18:37AM +0000, Matthew Wilcox (Oracle) wrote:
> A struct folio refers to an entire (possibly compound) page. A function
> which takes a struct folio argument declares that it will operate on the
> entire compound page, not just PAGE_SIZE bytes. In return, the caller
> guarantees that the pointer it is passing does not point to a tail page.

Is this a part of a larger use case or general cleanup/refactor where
the split between page and folio simplify programming?

Balbir Singh.