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Date:   Tue, 25 Aug 2020 20:32:08 -0700
From:   "Darrick J. Wong" <darrick.wong@...cle.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org
Subject: Re: [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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