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SubjectRe: [PATCH 5/9] iomap: Support arbitrarily many blocks per page
On Wed, Aug 26, 2020 at 03:26:23AM +0100, Matthew Wilcox wrote:
> On Tue, Aug 25, 2020 at 02:02:03PM -0700, Darrick J. Wong wrote:
> > > /*
> > > - * Structure allocated for each page when block size < PAGE_SIZE to track
> > > + * Structure allocated for each page when block size < page size to track
> > > * sub-page uptodate status and I/O completions.
> >
> > "for each regular page or head page of a huge page"? Or whatever we're
> > calling them nowadays?
>
> Well, that's what I'm calling a "page" ;-)
>
> How about "for each page or THP"? The fact that it's stored in the
> head page is incidental -- it's allocated for the THP.

Ok.

--D

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