* [PATCH v5, part4 11/41] mm/alpha: prepare for removing num_physpages and simplify mem_init()
[not found] <1368028298-7401-1-git-send-email-jiang.liu@huawei.com>
@ 2013-05-08 15:51 ` Jiang Liu
0 siblings, 0 replies; only message in thread
From: Jiang Liu @ 2013-05-08 15:51 UTC (permalink / raw)
To: Andrew Morton
Cc: Jiang Liu, David Rientjes, Wen Congyang, Mel Gorman, Minchan Kim,
KAMEZAWA Hiroyuki, Michal Hocko, James Bottomley, Sergei Shtylyov,
David Howells, Mark Salter, Jianguo Wu, linux-mm, linux-arch,
linux-kernel, Richard Henderson, Ivan Kokshaysky, Matt Turner,
linux-alpha
Prepare for removing num_physpages and simplify mem_init().
Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: linux-alpha@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
---
arch/alpha/mm/init.c | 32 ++------------------------------
arch/alpha/mm/numa.c | 34 ++--------------------------------
2 files changed, 4 insertions(+), 62 deletions(-)
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index ca07a97..04c933c 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -277,42 +277,14 @@ srm_paging_stop (void)
#endif
#ifndef CONFIG_DISCONTIGMEM
-static void __init
-printk_memory_info(void)
-{
- unsigned long codesize, reservedpages, datasize, initsize, tmp;
- extern int page_is_ram(unsigned long) __init;
-
- /* printk all informations */
- reservedpages = 0;
- for (tmp = 0; tmp < max_low_pfn; tmp++)
- /*
- * Only count reserved RAM pages
- */
- if (page_is_ram(tmp) && PageReserved(mem_map+tmp))
- reservedpages++;
-
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
- datasize = (unsigned long) &_edata - (unsigned long) &_data;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- printk("Memory: %luk/%luk available (%luk kernel code, %luk reserved, %luk data, %luk init)\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- max_mapnr << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10);
-}
-
void __init
mem_init(void)
{
- max_mapnr = num_physpages = max_low_pfn;
+ max_mapnr = max_low_pfn;
free_all_bootmem();
high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
- printk_memory_info();
+ mem_init_print_info(NULL);
}
#endif /* CONFIG_DISCONTIGMEM */
diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index 857452c..0894b3a8 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -129,8 +129,6 @@ setup_memory_node(int nid, void *kernel_end)
if (node_max_pfn > max_low_pfn)
max_pfn = max_low_pfn = node_max_pfn;
- num_physpages += node_max_pfn - node_min_pfn;
-
#if 0 /* we'll try this one again in a little while */
/* Cute trick to make sure our local node data is on local memory */
node_data[nid] = (pg_data_t *)(__va(node_min_pfn << PAGE_SHIFT));
@@ -324,37 +322,9 @@ void __init paging_init(void)
void __init mem_init(void)
{
- unsigned long codesize, reservedpages, datasize, initsize, pfn;
- extern int page_is_ram(unsigned long) __init;
- unsigned long nid, i;
high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
-
- reservedpages = 0;
- for_each_online_node(nid) {
- /*
- * This will free up the bootmem, ie, slot 0 memory
- */
- free_all_bootmem_node(NODE_DATA(nid));
-
- pfn = NODE_DATA(nid)->node_start_pfn;
- for (i = 0; i < node_spanned_pages(nid); i++, pfn++)
- if (page_is_ram(pfn) &&
- PageReserved(nid_page_nr(nid, i)))
- reservedpages++;
- }
-
- codesize = (unsigned long) &_etext - (unsigned long) &_text;
- datasize = (unsigned long) &_edata - (unsigned long) &_data;
- initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin;
-
- printk("Memory: %luk/%luk available (%luk kernel code, %luk reserved, "
- "%luk data, %luk init)\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- num_physpages << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- initsize >> 10);
+ free_all_bootmem();
+ mem_init_print_info(NULL);
#if 0
mem_stress();
#endif
--
1.7.9.5
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2013-05-08 15:51 ` [PATCH v5, part4 11/41] mm/alpha: prepare for removing num_physpages and simplify mem_init() Jiang Liu
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