Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Sun, 10 Nov 2019 10:41:26 +0200
From:   Mike Rapoport <rppt@kernel.org>
To:     Geert Uytterhoeven <geert@linux-m68k.org>
Cc:     Andrew Morton <akpm@linux-foundation.org>,
        Linux MM <linux-mm@kvack.org>,
        Anton Ivanov <anton.ivanov@cambridgegreys.com>,
        Arnd Bergmann <arnd@arndb.de>,
        "David S. Miller" <davem@davemloft.net>,
        Greentime Hu <green.hu@gmail.com>,
        Greg Ungerer <gerg@linux-m68k.org>,
        Helge Deller <deller@gmx.de>,
        "James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
        Jeff Dike <jdike@addtoit.com>,
        "Kirill A. Shutemov" <kirill@shutemov.name>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Mark Salter <msalter@redhat.com>,
        Matt Turner <mattst88@gmail.com>,
        Michal Simek <monstr@monstr.eu>, Peter Rosin <peda@axentia.se>,
        Richard Weinberger <richard@nod.at>,
        Rolf Eike Beer <eike-kernel@sf-tec.de>,
        Russell King <linux@armlinux.org.uk>,
        Sam Creasey <sammy@sammy.net>,
        Vincent Chen <deanbo422@gmail.com>,
        Vineet Gupta <Vineet.Gupta1@synopsys.com>,
        alpha <linux-alpha@vger.kernel.org>,
        Linux-Arch <linux-arch@vger.kernel.org>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        linux-c6x-dev@linux-c6x.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux/m68k <linux-m68k@vger.kernel.org>,
        Parisc List <linux-parisc@vger.kernel.org>,
        linux-um@lists.infradead.org,
        sparclinux <sparclinux@vger.kernel.org>,
        Mike Rapoport <rppt@linux.ibm.com>
Subject: Re: [PATCH v4 05/13] m68k: mm: use pgtable-nopXd instead of
 4level-fixup
Message-ID: <20191110084125.GA9494@rapoport-lnx>
References: <1572938135-31886-1-git-send-email-rppt@kernel.org>
 <1572938135-31886-6-git-send-email-rppt@kernel.org>
 <20191108113917.a9c6ebb8373cc95fd684b734@linux-foundation.org>
 <CAMuHMdXdoFSVno4WT=F6Q1UwEaZ6AQJmhNUqPpYHJm6uh165iw@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CAMuHMdXdoFSVno4WT=F6Q1UwEaZ6AQJmhNUqPpYHJm6uh165iw@mail.gmail.com>
User-Agent: Mutt/1.5.24 (2015-08-30)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

Hi Andrew,

On Sat, Nov 09, 2019 at 03:26:29PM +0100, Geert Uytterhoeven wrote:
> Hi Andrew,
> 
> On Fri, Nov 8, 2019 at 8:39 PM Andrew Morton <akpm@linux-foundation.org> wrote:
> > On Tue,  5 Nov 2019 09:15:27 +0200 Mike Rapoport <rppt@kernel.org> wrote:
> > > m68k has two or three levels of page tables and can use appropriate
> > > pgtable-nopXd and folding of the upper layers.
> > >
> > > Replace usage of include/asm-generic/4level-fixup.h and explicit
> > > definitions of __PAGETABLE_PxD_FOLDED in m68k with
> > > include/asm-generic/pgtable-nopmd.h for two-level configurations and with
> > > include/asm-generic/pgtable-nopud.h for three-lelve configurations and
> > > adjust page table manipulation macros and functions accordingly.
> >
> > This one was messed up by linux-next changes in arch/m68k/mm/kmap.c.
> > Can you please take a look?

Can you please elaborate what was the problem?

The patch applies cleanly to v5.4-rc6-mmots-2019-11-08-16-23 (from
github.com/hnaz/linux-mm) and all the page table traversals in
arch/m68k/mm/kmap.c look Ok.

I've build atari_defconfig and it boots fine on aranym.
 
> You mean due to the rename and move of __iounmap() to __free_io_area()
> in commit aa3a1664285d0bec ("m68k: rename __iounmap and mark it static")?
> 
> Commit 42d6c83d6180f800 ("m68k: mm: use pgtable-nopXd instead of
> 4level-fixup") in next-20191108 looks good to me.
> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds

-- 
Sincerely yours,
Mike.