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memblock, x86: Make ARCH_DISCARD_MEMBLOCK a config option 

From 6839454ae63f1eb21e515c10229ca95c22955fec Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 14 Jul 2011 11:22:17 +0200

Make ARCH_DISCARD_MEMBLOCK a config option so that it can be handled
together with other MEMBLOCK options.

Signed-off-by: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/r/20110714094603.GH3455@htj.dyndns.org
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This commit is contained in:
Tejun Heo 2011-07-14 11:46:03 +02:00 committed by H. Peter Anvin
parent 474b881bf4
commit c378ddd53f
5 changed files with 6 additions and 4 deletions
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1
arch/x86/Kconfig
View File

@ -26,6 +26,7 @@ config X86
select HAVE_KPROBES
select HAVE_MEMBLOCK
select HAVE_MEMBLOCK_NODE_MAP
select ARCH_DISCARD_MEMBLOCK
select ARCH_WANT_OPTIONAL_GPIOLIB
select ARCH_WANT_FRAME_POINTERS
select HAVE_DMA_ATTRS

2
arch/x86/include/asm/memblock.h
View File

@ -1,8 +1,6 @@
#ifndef _X86_MEMBLOCK_H
#define _X86_MEMBLOCK_H
#define ARCH_DISCARD_MEMBLOCK
void memblock_x86_reserve_range(u64 start, u64 end, char *name);
void memblock_x86_free_range(u64 start, u64 end);

2
include/linux/memblock.h
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@ -197,7 +197,7 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
region++)
#ifdef ARCH_DISCARD_MEMBLOCK
#ifdef CONFIG_ARCH_DISCARD_MEMBLOCK
#define __init_memblock __meminit
#define __initdata_memblock __meminitdata
#else

3
mm/Kconfig
View File

@ -134,6 +134,9 @@ config HAVE_MEMBLOCK
config HAVE_MEMBLOCK_NODE_MAP
boolean
config ARCH_DISCARD_MEMBLOCK
boolean
# eventually, we can have this option just 'select SPARSEMEM'
config MEMORY_HOTPLUG
bool "Allow for memory hot-add"

2
mm/memblock.c
View File

@ -959,7 +959,7 @@ static int __init early_memblock(char *p)
}
early_param("memblock", early_memblock);
#if defined(CONFIG_DEBUG_FS) && !defined(ARCH_DISCARD_MEMBLOCK)
#if defined(CONFIG_DEBUG_FS) && !defined(CONFIG_ARCH_DISCARD_MEMBLOCK)
static int memblock_debug_show(struct seq_file *m, void *private)
{