From: Xishi Qiu <qiuxishi@huawei.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: linux-mm@kvack.org, LKML <linux-kernel@vger.kernel.org>,
Xishi Qiu <qiuxishi@huawei.com>
Subject: [PATCH 1/2] mm: use pgdat_end_pfn() to simplify the code in arch
Date: Thu, 5 Sep 2013 16:07:01 +0800 [thread overview]
Message-ID: <52283BA5.3020809@huawei.com> (raw)
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>
---
arch/ia64/mm/init.c | 4 +---
arch/metag/mm/init.c | 2 +-
arch/powerpc/mm/numa.c | 3 +--
arch/sh/mm/init.c | 2 +-
4 files changed, 4 insertions(+), 7 deletions(-)
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index b6f7f43..88504ab 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -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;
diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c
index 28813f1..51b045b 100644
--- a/arch/metag/mm/init.c
+++ b/arch/metag/mm/init.c
@@ -149,7 +149,7 @@ 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;
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 5850798..4ea1d57 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -935,8 +935,7 @@ 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
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 33890fd..2d089fe 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -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);
--
1.7.1
--
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reply other threads:[~2013-09-05 8:08 UTC|newest]
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