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| author | Shaohua Li <shaohua.li@intel.com> | 2009-05-12 16:40:00 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-12 11:26:35 +0200 |
| commit | ed077b58f6146684069975122b1728a9d248a501 (patch) | |
| tree | c367da4e2c2b5a30c31d4fc3a9531f56fcd53828 | |
| parent | bf78ad69cd351798b9447a269c6bd41ce1f111f4 (diff) | |
x86: make sparse mem work in non-NUMA mode
With sparse memory, holes should not be marked present for memmap.
This patch makes sure sparsemem really works on SMP mode (!NUMA).
[ Impact: use less memory to map fragmented RAM, avoid boot-OOM/crash ]
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Sheng Yang <sheng.yang@intel.com>
LKML-Reference: <1242117600.22431.0.camel@sli10-desk.sh.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/mm/init_32.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index fef1d90d4f1..949708d7a48 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -706,15 +706,15 @@ void __init initmem_init(unsigned long start_pfn, highstart_pfn = highend_pfn = max_pfn; if (max_pfn > max_low_pfn) highstart_pfn = max_low_pfn; - memory_present(0, 0, highend_pfn); e820_register_active_regions(0, 0, highend_pfn); + sparse_memory_present_with_active_regions(0); printk(KERN_NOTICE "%ldMB HIGHMEM available.\n", pages_to_mb(highend_pfn - highstart_pfn)); num_physpages = highend_pfn; high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1; #else - memory_present(0, 0, max_low_pfn); e820_register_active_regions(0, 0, max_low_pfn); + sparse_memory_present_with_active_regions(0); num_physpages = max_low_pfn; high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1; #endif |