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[PATCH] Have x86 use add_active_range() and free_area_init_nodes

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Size zones and holes in an architecture independent manner for x86.

[akpm@osdl.org: build fix]
Signed-off-by: Mel Gorman <mel@csn.ul.ie>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Andi Kleen <ak@muc.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "Keith Mannthey" <kmannth@gmail.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Mel Gorman
2006-09-27 01:49:51 -07:00
committed by Linus Torvalds
parent c67c3cb4c9
commit 4cfee88ad3
4 changed files with 33 additions and 165 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
arch/i386/mm/discontig.c
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@@ -157,21 +157,6 @@ static void __init find_max_pfn_node(int nid)
BUG();
}
/* Find the owning node for a pfn. */
int early_pfn_to_nid(unsigned long pfn)
{
int nid;
for_each_node(nid) {
if (node_end_pfn[nid] == 0)
break;
if (node_start_pfn[nid] <= pfn && node_end_pfn[nid] >= pfn)
return nid;
}
return 0;
}
/*
* Allocate memory for the pg_data_t for this node via a crude pre-bootmem
* method. For node zero take this from the bottom of memory, for
@@ -227,6 +212,8 @@ static unsigned long calculate_numa_remap_pages(void)
unsigned long pfn;
for_each_online_node(nid) {
unsigned old_end_pfn = node_end_pfn[nid];
/*
* The acpi/srat node info can show hot-add memroy zones
* where memory could be added but not currently present.
@@ -276,6 +263,7 @@ static unsigned long calculate_numa_remap_pages(void)
node_end_pfn[nid] -= size;
node_remap_start_pfn[nid] = node_end_pfn[nid];
shrink_active_range(nid, old_end_pfn, node_end_pfn[nid]);
}
printk("Reserving total of %ld pages for numa KVA remap\n",
reserve_pages);
@@ -369,45 +357,22 @@ void __init numa_kva_reserve(void)
void __init zone_sizes_init(void)
{
int nid;
unsigned long max_zone_pfns[MAX_NR_ZONES] = {
virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT,
max_low_pfn,
highend_pfn
};
for_each_online_node(nid) {
unsigned long zones_size[MAX_NR_ZONES] = {0, };
unsigned long *zholes_size;
unsigned int max_dma;
unsigned long low = max_low_pfn;
unsigned long start = node_start_pfn[nid];
unsigned long high = node_end_pfn[nid];
max_dma = virt_to_phys((char *)MAX_DMA_ADDRESS) >> PAGE_SHIFT;
if (node_has_online_mem(nid)){
if (start > low) {
#ifdef CONFIG_HIGHMEM
BUG_ON(start > high);
zones_size[ZONE_HIGHMEM] = high - start;
#endif
} else {
if (low < max_dma)
zones_size[ZONE_DMA] = low;
else {
BUG_ON(max_dma > low);
BUG_ON(low > high);
zones_size[ZONE_DMA] = max_dma;
zones_size[ZONE_NORMAL] = low - max_dma;
#ifdef CONFIG_HIGHMEM
zones_size[ZONE_HIGHMEM] = high - low;
#endif
}
}
/* If SRAT has not registered memory, register it now */
if (find_max_pfn_with_active_regions() == 0) {
for_each_online_node(nid) {
if (node_has_online_mem(nid))
add_active_range(nid, node_start_pfn[nid],
node_end_pfn[nid]);
}
zholes_size = get_zholes_size(nid);
free_area_init_node(nid, NODE_DATA(nid), zones_size, start,
zholes_size);
}
free_area_init_nodes(max_zone_pfns);
return;
}