linux-kernel - Re: [PATCH v2 0/9] Remove DISCINTIGMEM memory model

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Message-ID: <YMDVSu00xXGmdCtC@kernel.org>
Date:   Wed, 9 Jun 2021 17:50:50 +0300
From:   Mike Rapoport <rppt@...nel.org>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Jonathan Corbet <corbet@....net>,
        Matt Turner <mattst88@...il.com>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Richard Henderson <rth@...ddle.net>,
        Vineet Gupta <vgupta@...opsys.com>, kexec@...ts.infradead.org,
        alpha <linux-alpha@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        linux-ia64@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        Linux-MM <linux-mm@...ck.org>,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        linux-s390 <linux-s390@...r.kernel.org>,
        Linux-sh list <linux-sh@...r.kernel.org>,
        "open list:SYNOPSYS ARC ARCHITECTURE" 
        <linux-snps-arc@...ts.infradead.org>,
        "open list:TENSILICA XTENSA PORT (xtensa)" 
        <linux-xtensa@...ux-xtensa.org>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        sparclinux <sparclinux@...r.kernel.org>
Subject: Re: [PATCH v2 0/9] Remove DISCINTIGMEM memory model

Hi Arnd,

On Wed, Jun 09, 2021 at 01:30:39PM +0200, Arnd Bergmann wrote:
> On Fri, Jun 4, 2021 at 8:49 AM Mike Rapoport <rppt@...nel.org> wrote:
> >
> > From: Mike Rapoport <rppt@...ux.ibm.com>
> >
> > 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

Andrew already took to mmotm.
 
> Acked-by: Arnd Bergmann <arnd@...db.de>

Thanks!

> for the whole series.

-- 
Sincerely yours,
Mike.