From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <benh@kernel.crashing.org>
Received: from gate.crashing.org (gate.crashing.org [63.228.1.57])
	(using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits))
	(Client did not present a certificate)
	by ozlabs.org (Postfix) with ESMTPS id D249DB6F5C
	for <linuxppc-dev@lists.ozlabs.org>;
	Wed, 29 Jun 2011 13:41:03 +1000 (EST)
Subject: Re: [PATCH 1/2] mm: Move definition of MIN_MEMORY_BLOCK_SIZE to a
	header
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
In-Reply-To: <1308013070.2874.784.camel@pasglop>
References: <1308013070.2874.784.camel@pasglop>
Content-Type: text/plain; charset="UTF-8"
Date: Wed, 29 Jun 2011 13:40:40 +1000
Message-ID: <1309318840.32158.522.camel@pasglop>
Mime-Version: 1.0
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>, Ingo Molnar <mingo@elte.hu>,
	linuxppc-dev <linuxppc-dev@lists.ozlabs.org>,
	Thomas Gleixner <tglx@linutronix.de>
List-Id: Linux on PowerPC Developers Mail List <linuxppc-dev.lists.ozlabs.org>
List-Unsubscribe: <https://lists.ozlabs.org/options/linuxppc-dev>,
	<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>
List-Archive: <http://lists.ozlabs.org/pipermail/linuxppc-dev>
List-Post: <mailto:linuxppc-dev@lists.ozlabs.org>
List-Help: <mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>
List-Subscribe: <https://lists.ozlabs.org/listinfo/linuxppc-dev>,
	<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>

On Tue, 2011-06-14 at 10:57 +1000, Benjamin Herrenschmidt wrote:
> The macro MIN_MEMORY_BLOCK_SIZE is currently defined twice in two .c
> files, and I need it in a third one to fix a powerpc bug, so let's
> first move it into a header
> 
> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> ---
> 
> Ingo, Thomas: Who needs to ack the x86 bit ? I'd like to send that
> to Linus asap with the powerpc fix.

Anybody ? Allo ?

I'm happy to send that to Linus myself but I'd like at least on or two
acks :-)

Cheers,
Ben.

> diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
> index d865c4a..bbaaa00 100644
> --- a/arch/x86/mm/init_64.c
> +++ b/arch/x86/mm/init_64.c
> @@ -28,6 +28,7 @@
>  #include <linux/poison.h>
>  #include <linux/dma-mapping.h>
>  #include <linux/module.h>
> +#include <linux/memory.h>
>  #include <linux/memory_hotplug.h>
>  #include <linux/nmi.h>
>  #include <linux/gfp.h>
> @@ -895,8 +896,6 @@ const char *arch_vma_name(struct vm_area_struct *vma)
>  }
>  
>  #ifdef CONFIG_X86_UV
> -#define MIN_MEMORY_BLOCK_SIZE   (1 << SECTION_SIZE_BITS)
> -
>  unsigned long memory_block_size_bytes(void)
>  {
>  	if (is_uv_system()) {
> diff --git a/drivers/base/memory.c b/drivers/base/memory.c
> index 9f9b235..45d7c8f 100644
> --- a/drivers/base/memory.c
> +++ b/drivers/base/memory.c
> @@ -30,7 +30,6 @@
>  static DEFINE_MUTEX(mem_sysfs_mutex);
>  
>  #define MEMORY_CLASS_NAME	"memory"
> -#define MIN_MEMORY_BLOCK_SIZE	(1 << SECTION_SIZE_BITS)
>  
>  static int sections_per_block;
>  
> diff --git a/include/linux/memory.h b/include/linux/memory.h
> index e1e3b2b..935699b 100644
> --- a/include/linux/memory.h
> +++ b/include/linux/memory.h
> @@ -20,6 +20,8 @@
>  #include <linux/compiler.h>
>  #include <linux/mutex.h>
>  
> +#define MIN_MEMORY_BLOCK_SIZE     (1 << SECTION_SIZE_BITS)
> +
>  struct memory_block {
>  	unsigned long start_section_nr;
>  	unsigned long end_section_nr;
>