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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Alexey Dobriyan <adobriyan@gmail.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Greg Ungerer <gerg@linux-m68k.org>,
	John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
	Jonathan Corbet <corbet@lwn.net>,
	Matt Turner <mattst88@gmail.com>, Meelis Roos <mroos@linux.ee>,
	Michael Schmitz <schmitzmic@gmail.com>,
	Mike Rapoport <rppt@linux.ibm.com>,
	Russell King <linux@armlinux.org.uk>,
	Tony Luck <tony.luck@intel.com>,
	Vineet Gupta <vgupta@synopsys.com>, Will Deacon <will@kernel.org>,
	alpha <linux-alpha@vger.kernel.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>,
	"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
	Linux FS Devel <linux-fsdevel@vger.kernel.org>,
	"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-m68k <linux-m68k@lists.linux-m68k.org>,
	Linux MM <linux-mm@kvack.org>,
	arcml <linux-snps-arc@lists.infradead.org>
Subject: Re: [PATCH 11/13] m68k/mm: make node data and node setup depend on CONFIG_DISCONTIGMEM
Date: Wed, 28 Oct 2020 10:25:49 +0100
Message-ID: <CAMuHMdU4r4CJ1kBu7gx1jkputjDn2S8Lqkj7RPfa3XUnM1QOFg@mail.gmail.com> (raw)
In-Reply-To: <20201027112955.14157-12-rppt@kernel.org>

Hi Mike,

On Tue, Oct 27, 2020 at 12:31 PM Mike Rapoport <rppt@kernel.org> wrote:
> From: Mike Rapoport <rppt@linux.ibm.com>
>
> The pg_data_t node structures and their initialization currently depends on
> !CONFIG_SINGLE_MEMORY_CHUNK. Since they are required only for DISCONTIGMEM
> make this dependency explicit and replace usage of
> CONFIG_SINGLE_MEMORY_CHUNK with CONFIG_DISCONTIGMEM where appropriate.
>
> The CONFIG_SINGLE_MEMORY_CHUNK was implicitly disabled on the ColdFire MMU
> variant, although it always presumed a single memory bank. As there is no
> actual need for DISCONTIGMEM in this case, make sure that ColdFire MMU
> systems set CONFIG_SINGLE_MEMORY_CHUNK to 'y'.
>
> Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>

Thanks for your patch!

> ---
>  arch/m68k/Kconfig.cpu           | 6 +++---
>  arch/m68k/include/asm/page_mm.h | 2 +-
>  arch/m68k/mm/init.c             | 4 ++--
>  3 files changed, 6 insertions(+), 6 deletions(-)

Is there any specific reason you didn't convert the checks for
CONFIG_SINGLE_MEMORY_CHUNK in arch/m68k/kernel/setup_mm.c
and arch/m68k/include/asm/virtconvert.h?

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

  reply index

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-27 11:29 [PATCH 00/13] arch, mm: deprecate DISCONTIGMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 01/13] alpha: switch from DISCONTIGMEM to SPARSEMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 02/13] ia64: remove custom __early_pfn_to_nid() Mike Rapoport
2020-10-27 11:29 ` [PATCH 03/13] ia64: remove 'ifdef CONFIG_ZONE_DMA32' statements Mike Rapoport
2020-10-27 11:29 ` [PATCH 04/13] ia64: discontig: paging_init(): remove local max_pfn calculation Mike Rapoport
2020-10-27 11:29 ` [PATCH 05/13] ia64: split virtual map initialization out of paging_init() Mike Rapoport
2020-10-27 11:29 ` [PATCH 06/13] ia64: forbid using VIRTUAL_MEM_MAP with FLATMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 07/13] ia64: make SPARSEMEM default and disable DISCONTIGMEM Mike Rapoport
2020-12-12 16:01   ` Guenter Roeck
2020-12-13  8:36     ` Mike Rapoport
2020-10-27 11:29 ` [PATCH 08/13] arm: remove CONFIG_ARCH_HAS_HOLES_MEMORYMODEL Mike Rapoport
2020-10-27 11:29 ` [PATCH 09/13] arm, arm64: move free_unused_memmap() to generic mm Mike Rapoport
2020-10-27 11:29 ` [PATCH 10/13] arc: use FLATMEM with freeing of unused memory map instead of DISCONTIGMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 11/13] m68k/mm: make node data and node setup depend on CONFIG_DISCONTIGMEM Mike Rapoport
2020-10-28  9:25   ` Geert Uytterhoeven [this message]
2020-10-28 11:16     ` Mike Rapoport
2020-10-28 18:14       ` Michael Schmitz
2020-10-28 18:57         ` Mike Rapoport
2020-11-01 16:55       ` Mike Rapoport
2020-10-27 11:29 ` [PATCH 12/13] m68k/mm: enable use of generic memory_model.h for !DISCONTIGMEM Mike Rapoport
2020-10-27 11:29 ` [PATCH 13/13] m68k: deprecate DISCONTIGMEM Mike Rapoport

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