x86: remove end_pfn in 64bit
and use max_pfn directly.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 6eced2f..d5d4b04 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -49,11 +49,6 @@
#include <asm/cacheflush.h>
/*
- * PFN of last memory page.
- */
-unsigned long end_pfn;
-
-/*
* end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries.
* The direct mapping extends to max_pfn_mapped, so that we can directly access
* apertures, ACPI and other tables without having to play with fixmaps.
@@ -586,9 +581,9 @@
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
- max_zone_pfns[ZONE_NORMAL] = end_pfn;
+ max_zone_pfns[ZONE_NORMAL] = max_pfn;
- memory_present(0, 0, end_pfn);
+ memory_present(0, 0, max_pfn);
sparse_init();
free_area_init_nodes(max_zone_pfns);
}
@@ -670,8 +665,8 @@
#else
totalram_pages = free_all_bootmem();
#endif
- reservedpages = end_pfn - totalram_pages -
- absent_pages_in_range(0, end_pfn);
+ reservedpages = max_pfn - totalram_pages -
+ absent_pages_in_range(0, max_pfn);
after_bootmem = 1;
codesize = (unsigned long) &_etext - (unsigned long) &_text;
@@ -690,7 +685,7 @@
printk(KERN_INFO "Memory: %luk/%luk available (%ldk kernel code, "
"%ldk reserved, %ldk data, %ldk init)\n",
(unsigned long) nr_free_pages() << (PAGE_SHIFT-10),
- end_pfn << (PAGE_SHIFT-10),
+ max_pfn << (PAGE_SHIFT-10),
codesize >> 10,
reservedpages << (PAGE_SHIFT-10),
datasize >> 10,
@@ -784,7 +779,7 @@
#endif
unsigned long pfn = phys >> PAGE_SHIFT;
- if (pfn >= end_pfn) {
+ if (pfn >= max_pfn) {
/*
* This can happen with kdump kernels when accessing
* firmware tables:
diff --git a/arch/x86/mm/k8topology_64.c b/arch/x86/mm/k8topology_64.c
index 317573e..41f1b5c 100644
--- a/arch/x86/mm/k8topology_64.c
+++ b/arch/x86/mm/k8topology_64.c
@@ -143,8 +143,8 @@
limit |= (1<<24)-1;
limit++;
- if (limit > end_pfn << PAGE_SHIFT)
- limit = end_pfn << PAGE_SHIFT;
+ if (limit > max_pfn << PAGE_SHIFT)
+ limit = max_pfn << PAGE_SHIFT;
if (limit <= base)
continue;
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 316e5f9..b432d57 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -86,7 +86,7 @@
addr = 0x8000;
nodemap_size = round_up(sizeof(s16) * memnodemapsize, L1_CACHE_BYTES);
- nodemap_addr = find_e820_area(addr, end_pfn<<PAGE_SHIFT,
+ nodemap_addr = find_e820_area(addr, max_pfn<<PAGE_SHIFT,
nodemap_size, L1_CACHE_BYTES);
if (nodemap_addr == -1UL) {
printk(KERN_ERR
@@ -579,7 +579,7 @@
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN;
max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN;
- max_zone_pfns[ZONE_NORMAL] = end_pfn;
+ max_zone_pfns[ZONE_NORMAL] = max_pfn;
sparse_memory_present_with_active_regions(MAX_NUMNODES);
sparse_init();
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index b67f5a1..0fd67b8 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -299,7 +299,7 @@
pxmram = 0;
}
- e820ram = end_pfn - absent_pages_in_range(0, end_pfn);
+ e820ram = max_pfn - absent_pages_in_range(0, max_pfn);
/* We seem to lose 3 pages somewhere. Allow a bit of slack. */
if ((long)(e820ram - pxmram) >= 1*1024*1024) {
printk(KERN_ERR