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mm: use pgdat_end_pfn() to simplify the code in arch 

Use "pgdat_end_pfn()" instead of "pgdat->node_start_pfn +
pgdat->node_spanned_pages".  Simplify the code, no functional change.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Xishi Qiu 2013-11-12 15:07:17 -08:00 committed by Linus Torvalds
parent 8bfa3f9a01
commit 6408068ee6
4 changed files with 4 additions and 7 deletions
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4
arch/ia64/mm/init.c
View File

@ -357,9 +357,7 @@ int vmemmap_find_next_valid_pfn(int node, int i)
end_address = (unsigned long) &vmem_map[pgdat->node_start_pfn + i];
end_address = PAGE_ALIGN(end_address);
stop_address = (unsigned long) &vmem_map[
pgdat->node_start_pfn + pgdat->node_spanned_pages];
stop_address = (unsigned long) &vmem_map[pgdat_end_pfn(pgdat)];
do {
pgd_t *pgd;

2
arch/metag/mm/init.c
View File

@ -148,7 +148,7 @@ static void __init bootmem_init_one_node(unsigned int nid)
if (!p->node_spanned_pages)
return;
end_pfn = p->node_start_pfn + p->node_spanned_pages;
end_pfn = pgdat_end_pfn(p);
#ifdef CONFIG_HIGHMEM
if (end_pfn > max_low_pfn)
end_pfn = max_low_pfn;

3
arch/powerpc/mm/numa.c
View File

@ -938,8 +938,7 @@ static void __init mark_reserved_regions_for_nid(int nid)
unsigned long start_pfn = physbase >> PAGE_SHIFT;
unsigned long end_pfn = PFN_UP(physbase + size);
struct node_active_region node_ar;
unsigned long node_end_pfn = node->node_start_pfn +
node->node_spanned_pages;
unsigned long node_end_pfn = pgdat_end_pfn(node);
/*
* Check to make sure that this memblock.reserved area is

2
arch/sh/mm/init.c
View File

@ -231,7 +231,7 @@ static void __init bootmem_init_one_node(unsigned int nid)
if (!p->node_spanned_pages)
return;
end_pfn = p->node_start_pfn + p->node_spanned_pages;
end_pfn = pgdat_end_pfn(p);
total_pages = bootmem_bootmap_pages(p->node_spanned_pages);