Re: [PATCH v4 05/13] m68k: mm: use pgtable-nopXd instead of 4level-fixup

From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Linux/m68k <linux-m68k@vger.kernel.org>,
	"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
	Linux MM <linux-mm@kvack.org>,
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	Vincent Chen <deanbo422@gmail.com>,
	Greg Ungerer <gerg@linux-m68k.org>,
	Anton Ivanov <anton.ivanov@cambridgegreys.com>,
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	Mike Rapoport <rppt@linux.ibm.com>,
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	"David S. Miller" <davem@davemloft.net>,
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	Linus Torvalds <torvalds@linux-foundation.org>,
	Peter Rosin <peda@axentia.se>, Mike Rapoport <rppt@kernel.org>
Subject: Re: [PATCH v4 05/13] m68k: mm: use pgtable-nopXd instead of 4level-fixup
Date: Sat, 9 Nov 2019 15:26:29 +0100	[thread overview]
Message-ID: <CAMuHMdXdoFSVno4WT=F6Q1UwEaZ6AQJmhNUqPpYHJm6uh165iw@mail.gmail.com> (raw)
In-Reply-To: <20191108113917.a9c6ebb8373cc95fd684b734@linux-foundation.org>

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?

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

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