Re: [PATCH v2 0/9] Remove DISCINTIGMEM memory model
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- To: Mike Rapoport <rppt@xxxxxxxxxx>
- Subject: Re: [PATCH v2 0/9] Remove DISCINTIGMEM memory model
- From: Arnd Bergmann <arnd@xxxxxxxx>
- Date: Wed, 9 Jun 2021 13:30:39 +0200
- Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>, Ivan Kokshaysky <ink@xxxxxxxxxxxxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Matt Turner <mattst88@xxxxxxxxx>, Mike Rapoport <rppt@xxxxxxxxxxxxx>, Richard Henderson <rth@xxxxxxxxxxx>, Vineet Gupta <vgupta@xxxxxxxxxxxx>, kexec@xxxxxxxxxxxxxxxxxxx, alpha <linux-alpha@xxxxxxxxxxxxxxx>, linux-arch <linux-arch@xxxxxxxxxxxxxxx>, Linux ARM <linux-arm-kernel@xxxxxxxxxxxxxxxxxxx>, "open list:DOCUMENTATION" <linux-doc@xxxxxxxxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>, linux-m68k <linux-m68k@xxxxxxxxxxxxxxx>, "open list:BROADCOM NVRAM DRIVER" <linux-mips@xxxxxxxxxxxxxxx>, Linux-MM <linux-mm@xxxxxxxxx>, linux-riscv <linux-riscv@xxxxxxxxxxxxxxxxxxx>, linux-s390 <linux-s390@xxxxxxxxxxxxxxx>, Linux-sh list <linux-sh@xxxxxxxxxxxxxxx>, "open list:SYNOPSYS ARC ARCHITECTURE" <linux-snps-arc@xxxxxxxxxxxxxxxxxxx>, "open list:TENSILICA XTENSA PORT (xtensa)" <linux-xtensa@xxxxxxxxxxxxxxxx>, linuxppc-dev <linuxppc-dev@xxxxxxxxxxxxxxxx>, sparclinux <sparclinux@xxxxxxxxxxxxxxx>
- In-reply-to: <20210604064916.26580-1-rppt@kernel.org>
- References: <20210604064916.26580-1-rppt@kernel.org>
On Fri, Jun 4, 2021 at 8:49 AM Mike Rapoport <rppt@xxxxxxxxxx> wrote:
>
> From: Mike Rapoport <rppt@xxxxxxxxxxxxx>
>
> Hi,
>
> SPARSEMEM memory model was supposed to entirely replace DISCONTIGMEM a
> (long) while ago. The last architectures that used DISCONTIGMEM were
> updated to use other memory models in v5.11 and it is about the time to
> entirely remove DISCONTIGMEM from the kernel.
>
> This set removes DISCONTIGMEM from alpha, arc and m68k, simplifies memory
> model selection in mm/Kconfig and replaces usage of redundant
> CONFIG_NEED_MULTIPLE_NODES and CONFIG_FLAT_NODE_MEM_MAP with CONFIG_NUMA
> and CONFIG_FLATMEM respectively.
>
> I've also removed NUMA support on alpha that was BROKEN for more than 15
> years.
>
> There were also minor updates all over arch/ to remove mentions of
> DISCONTIGMEM in comments and #ifdefs.
Hi Mike and Andrew,
It looks like everyone is happy with this version so far. How should we merge it
for linux-next? I'm happy to take it through the asm-generic tree, but linux-mm
would fit at least as well. In case we go for linux-mm, feel free to add
Acked-by: Arnd Bergmann <arnd@xxxxxxxx>
for the whole series.
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