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authorYinghai Lu <yhlu.kernel@gmail.com>2008-06-23 03:06:14 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-08 12:50:21 +0200
commit346cafecdeb17e1a0457a9e7eca239ef467b678c (patch)
treea060f99a7389c583d851dc6a7ace2a1e54ccf2ca /arch/x86/mm
parent2ec65f8b89ea003c27ff7723525a2ee335a2b393 (diff)
x86: clean up min_low_pfn
for 32bit we already had early_res support, so don't need to track min_low_pfn. keep it to 0 always. also use init_bootmem_node instead of init_bootmem, so don't touch min_low_pfn. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/init_32.c10
-rw-r--r--arch/x86/mm/init_64.c4
2 files changed, 7 insertions, 7 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 27b82931294..9bb35cf8bc4 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -565,11 +565,7 @@ void __init find_low_pfn_range(void)
{
/* it could update max_pfn */
- /*
- * partially used pages are not usable - thus
- * we are rounding upwards:
- */
- min_low_pfn = PFN_UP(init_pg_tables_end);
+ /* max_low_pfn is 0, we already have early_res support */
max_low_pfn = max_pfn;
if (max_low_pfn > MAXMEM_PFN) {
@@ -694,7 +690,9 @@ void __init setup_bootmem_allocator(void)
panic("Cannot find bootmem map of size %ld\n", bootmap_size);
reserve_early(bootmap, bootmap + bootmap_size, "BOOTMAP");
- bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, max_low_pfn);
+ /* don't touch min_low_pfn */
+ bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap >> PAGE_SHIFT,
+ min_low_pfn, max_low_pfn);
printk(KERN_INFO " mapped low ram: 0 - %08lx\n",
max_pfn_mapped<<PAGE_SHIFT);
printk(KERN_INFO " low ram: %08lx - %08lx\n",
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 99a091ee5a6..955dbc8abf6 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -620,7 +620,9 @@ void __init initmem_init(unsigned long start_pfn, unsigned long end_pfn)
PAGE_SIZE);
if (bootmap == -1L)
panic("Cannot find bootmem map of size %ld\n", bootmap_size);
- bootmap_size = init_bootmem(bootmap >> PAGE_SHIFT, end_pfn);
+ /* don't touch min_low_pfn */
+ bootmap_size = init_bootmem_node(NODE_DATA(0), bootmap >> PAGE_SHIFT,
+ 0, end_pfn);
e820_register_active_regions(0, start_pfn, end_pfn);
free_bootmem_with_active_regions(0, end_pfn);
early_res_to_bootmem(0, end_pfn<<PAGE_SHIFT);