linux-kernel - Re: [PATCH v4 00/23] Convert to filemap_get_folios

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 linux-cve-announce 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]

Message-ID: <CAOzc2pzFMU-XiGZ9bsp40JkpYVSzQuxs2VXgfw_p9abkj4GrFw@mail.gmail.com>
Date:   Thu, 3 Nov 2022 09:38:48 -0700
From:   Vishal Moola <vishal.moola@...il.com>
To:     Dave Chinner <david@...morbit.com>
Cc:     linux-fsdevel@...r.kernel.org, linux-afs@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-btrfs@...r.kernel.org,
        ceph-devel@...r.kernel.org, linux-cifs@...r.kernel.org,
        linux-ext4@...r.kernel.org, linux-f2fs-devel@...ts.sourceforge.net,
        cluster-devel@...hat.com, linux-nilfs@...r.kernel.org,
        linux-mm@...ck.org
Subject: Re: [PATCH v4 00/23] Convert to filemap_get_folios_tag()

On Thu, Nov 3, 2022 at 12:08 AM Dave Chinner <david@...morbit.com> wrote:
>
> On Wed, Nov 02, 2022 at 09:10:08AM -0700, Vishal Moola (Oracle) wrote:
> > This patch series replaces find_get_pages_range_tag() with
> > filemap_get_folios_tag(). This also allows the removal of multiple
> > calls to compound_head() throughout.
> > It also makes a good chunk of the straightforward conversions to folios,
> > and takes the opportunity to introduce a function that grabs a folio
> > from the pagecache.
> >
> > F2fs and Ceph have quite a lot of work to be done regarding folios, so
> > for now those patches only have the changes necessary for the removal of
> > find_get_pages_range_tag(), and only support folios of size 1 (which is
> > all they use right now anyways).
> >
> > I've run xfstests on btrfs, ext4, f2fs, and nilfs2, but more testing may be
> > beneficial. The page-writeback and filemap changes implicitly work. Testing
> > and review of the other changes (afs, ceph, cifs, gfs2) would be appreciated.
>
> Same question as last time: have you tested this with multipage
> folios enabled? If you haven't tested XFS, then I'm guessing the
> answer is no, and you haven't fixed the bug I pointed out in
> the write_cache_pages() implementation....
>

I haven't tested the series with multipage folios or XFS.

I don't seem to have gotten your earlier comments, and I
can't seem to find them on the mailing lists. Could you
please send them again so I can take a look?