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From: Andrew Morton <akpm@linux-foundation.org>
To: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux MM <linux-mm@kvack.org>,
	Linux-Arch <linux-arch@vger.kernel.org>
Subject: Re: mm: new mm hook framework
Date: Thu, 9 Jul 2015 14:21:55 -0700	[thread overview]
Message-ID: <20150709142155.f749ec0dd92b0a4ee0ba8d32@linux-foundation.org> (raw)
In-Reply-To: <558BBF05.1050703@linux.vnet.ibm.com>

On Thu, 25 Jun 2015 10:42:45 +0200 Laurent Dufour <ldufour@linux.vnet.ibm.com> wrote:

> > IMHO this screams for the generic version in include/asm-generic/,
> > and "generic-y += mm-arch-hooks.h" in arch/*/include/asm/Kbuild/.
> 
> I do like your proposal which avoid creating too many *empty* files.
> Since Andrew suggested the way I did the current patch, I'd appreciate
> his feedback too.

But this infrastructure works the other way.  If an architecture wants
a private implementation of arch_remap(), it adds a definition into
arch/XXX/include/asm/mm-arch-hooks.h and does #define arch_remap arch_remap.

If the architecture is OK with the default implementation of
arch_remap(), it does nothing at all.

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      reply	other threads:[~2015-07-09 21:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20150625040814.6C421660F7B@gitolite.kernel.org>
2015-06-25  7:12 ` Geert Uytterhoeven
2015-06-25  8:42   ` Laurent Dufour
2015-07-09 21:21     ` Andrew Morton [this message]

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