diff options
Diffstat (limited to 'arch/x86_64')
| -rw-r--r-- | arch/x86_64/mm/numa.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/x86_64/mm/numa.c b/arch/x86_64/mm/numa.c index 7d9c428f4094..1ec16ea97519 100644 --- a/arch/x86_64/mm/numa.c +++ b/arch/x86_64/mm/numa.c @@ -78,11 +78,8 @@ static int __init allocate_cachealigned_memnodemap(void) unsigned long pad, pad_addr; memnodemap = memnode.embedded_map; - if (memnodemapsize <= 48) { - printk(KERN_DEBUG "NUMA: Allocated memnodemap from %lx - %lx\n", - nodemap_addr, nodemap_addr + nodemap_size); + if (memnodemapsize <= 48) return 0; - } pad = L1_CACHE_BYTES - 1; pad_addr = 0x8000; @@ -110,7 +107,7 @@ static int __init allocate_cachealigned_memnodemap(void) static int __init extract_lsb_from_nodes (const struct bootnode *nodes, int numnodes) { - int i; + int i, nodes_used = 0; unsigned long start, end; unsigned long bitfield = 0, memtop = 0; @@ -119,11 +116,15 @@ extract_lsb_from_nodes (const struct bootnode *nodes, int numnodes) end = nodes[i].end; if (start >= end) continue; - bitfield |= start | end; + bitfield |= start; + nodes_used++; if (end > memtop) memtop = end; } - i = find_first_bit(&bitfield, sizeof(unsigned long)*8); + if (nodes_used <= 1) + i = 63; + else + i = find_first_bit(&bitfield, sizeof(unsigned long)*8); memnodemapsize = (memtop >> i)+1; return i; } |
