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bootmem: Move contig_page_data definition to bootmem.c/nobootmem.c 

Now that bootmem.c and nobootmem.c are separate, it's cleaner to
define contig_page_data in each file than in page_alloc.c with #ifdef.
Move it.

This patch doesn't introduce any behavior change.

-v2: According to Andrew, fixed the struct layout.
-tj: Updated commit description.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
hifive-unleashed-5.1
Yinghai Lu 2011-02-24 14:43:06 +01:00 committed by Tejun Heo
parent 0932587328
commit e782ab421b
3 changed files with 12 additions and 9 deletions
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7
mm/bootmem.c
View File

@ -23,6 +23,13 @@
#include "internal.h"
#ifndef CONFIG_NEED_MULTIPLE_NODES
struct pglist_data __refdata contig_page_data = {
.bdata = &bootmem_node_data[0]
};
EXPORT_SYMBOL(contig_page_data);
#endif
unsigned long max_low_pfn;
unsigned long min_low_pfn;
unsigned long max_pfn;

5
mm/nobootmem.c
View File

@ -23,6 +23,11 @@
#include "internal.h"
#ifndef CONFIG_NEED_MULTIPLE_NODES
struct pglist_data __refdata contig_page_data;
EXPORT_SYMBOL(contig_page_data);
#endif
unsigned long max_low_pfn;
unsigned long min_low_pfn;
unsigned long max_pfn;

9
mm/page_alloc.c
View File

@ -4841,15 +4841,6 @@ void __init set_dma_reserve(unsigned long new_dma_reserve)
dma_reserve = new_dma_reserve;
}
#ifndef CONFIG_NEED_MULTIPLE_NODES
struct pglist_data __refdata contig_page_data = {
#ifndef CONFIG_NO_BOOTMEM
.bdata = &bootmem_node_data[0]
#endif
};
EXPORT_SYMBOL(contig_page_data);
#endif
void __init free_area_init(unsigned long *zones_size)
{
free_area_init_node(0, zones_size,