diff options
Diffstat (limited to 'arch/x86/mm/numa_64.c')
| -rw-r--r-- | arch/x86/mm/numa_64.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 2ea56f48f29..9a6892200b2 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -60,7 +60,7 @@ unsigned long __initdata nodemap_size; * -1 if node overlap or lost ram (shift too big) */ static int __init populate_memnodemap(const struct bootnode *nodes, - int numnodes, int shift) + int numnodes, int shift, int *nodeids) { unsigned long addr, end; int i, res = -1; @@ -76,7 +76,12 @@ static int __init populate_memnodemap(const struct bootnode *nodes, do { if (memnodemap[addr >> shift] != NUMA_NO_NODE) return -1; - memnodemap[addr >> shift] = i; + + if (!nodeids) + memnodemap[addr >> shift] = i; + else + memnodemap[addr >> shift] = nodeids[i]; + addr += (1UL << shift); } while (addr < end); res = 1; @@ -139,7 +144,8 @@ static int __init extract_lsb_from_nodes(const struct bootnode *nodes, return i; } -int __init compute_hash_shift(struct bootnode *nodes, int numnodes) +int __init compute_hash_shift(struct bootnode *nodes, int numnodes, + int *nodeids) { int shift; @@ -149,7 +155,7 @@ int __init compute_hash_shift(struct bootnode *nodes, int numnodes) printk(KERN_DEBUG "NUMA: Using %d for the hash shift.\n", shift); - if (populate_memnodemap(nodes, numnodes, shift) != 1) { + if (populate_memnodemap(nodes, numnodes, shift, nodeids) != 1) { printk(KERN_INFO "Your memory is not aligned you need to " "rebuild your kernel with a bigger NODEMAPSIZE " "shift=%d\n", shift); @@ -380,9 +386,10 @@ static int __init split_nodes_by_size(struct bootnode *nodes, u64 *addr, * Sets up the system RAM area from start_pfn to end_pfn according to the * numa=fake command-line option. */ +static struct bootnode nodes[MAX_NUMNODES] __initdata; + static int __init numa_emulation(unsigned long start_pfn, unsigned long end_pfn) { - struct bootnode nodes[MAX_NUMNODES]; u64 size, addr = start_pfn << PAGE_SHIFT; u64 max_addr = end_pfn << PAGE_SHIFT; int num_nodes = 0, num = 0, coeff_flag, coeff = -1, i; @@ -462,7 +469,7 @@ done: } } out: - memnode_shift = compute_hash_shift(nodes, num_nodes); + memnode_shift = compute_hash_shift(nodes, num_nodes, NULL); if (memnode_shift < 0) { memnode_shift = 0; printk(KERN_ERR "No NUMA hash function found. NUMA emulation " |