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authorZoltan Menyhart <Zoltan.Menyhart@bull.net>2008-04-11 22:21:35 (GMT)
committerTony Luck <tony.luck@intel.com>2008-04-11 22:21:35 (GMT)
commit98075d245a5bc4aeebc2e9f16fa8b089a5c200ac (patch)
tree5d248fa7ec872548e43ed2acb864d701adc65f42 /arch/ia64/mm/contig.c
parentc19b2930df0621500913c005c06978bd8933110b (diff)
downloadlinux-fsl-qoriq-98075d245a5bc4aeebc2e9f16fa8b089a5c200ac.tar.xz
[IA64] Fix NUMA configuration issue
There is a NUMA memory configuration issue in 2.6.24: A 2-node machine of ours has got the following memory layout: Node 0: 0 - 2 Gbytes Node 0: 4 - 8 Gbytes Node 1: 8 - 16 Gbytes Node 0: 16 - 18 Gbytes "efi_memmap_init()" merges the three last ranges into one. "register_active_ranges()" is called as follows: efi_memmap_walk(register_active_ranges, NULL); i.e. once for the 4 - 18 Gbytes range. It picks up the node number from the start address, and registers all the memory for the node #0. "register_active_ranges()" should be called as follows to make sure there is no merged address range at its entry: efi_memmap_walk(filter_memory, register_active_ranges); "filter_memory()" is similar to "filter_rsvd_memory()", but the reserved memory ranges are not filtered out. Signed-off-by: Zoltan Menyhart <Zoltan.Menyhart@bull.net> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/mm/contig.c')
-rw-r--r--arch/ia64/mm/contig.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c
index 0479661..798bf98 100644
--- a/arch/ia64/mm/contig.c
+++ b/arch/ia64/mm/contig.c
@@ -253,7 +253,7 @@ paging_init (void)
max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
#ifdef CONFIG_VIRTUAL_MEM_MAP
- efi_memmap_walk(register_active_ranges, NULL);
+ efi_memmap_walk(filter_memory, register_active_ranges);
efi_memmap_walk(find_largest_hole, (u64 *)&max_gap);
if (max_gap < LARGE_GAP) {
vmem_map = (struct page *) 0;