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| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-06-23 03:06:14 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 12:50:21 +0200 |
| commit | 346cafecdeb17e1a0457a9e7eca239ef467b678c (patch) | |
| tree | a060f99a7389c583d851dc6a7ace2a1e54ccf2ca /arch/x86/mm/init_32.c | |
| parent | 2ec65f8b89ea003c27ff7723525a2ee335a2b393 (diff) | |
| download | linux-3.10-346cafecdeb17e1a0457a9e7eca239ef467b678c.tar.gz linux-3.10-346cafecdeb17e1a0457a9e7eca239ef467b678c.tar.bz2 linux-3.10-346cafecdeb17e1a0457a9e7eca239ef467b678c.zip | |
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/init_32.c')
| -rw-r--r-- | arch/x86/mm/init_32.c | 10 |
1 files changed, 4 insertions, 6 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", |