linux-kernel - Re: [PATCH 5/9] iomap: Support arbitrarily many blocks per page

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 26 Aug 2020 03:26:23 +0100
From:   Matthew Wilcox <willy@...radead.org>
To:     "Darrick J. Wong" <darrick.wong@...cle.com>
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 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.