diff options
Diffstat (limited to 'arch/x86/mm/numa_64.c')
| -rw-r--r-- | arch/x86/mm/numa_64.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index 20aa1d31e165..681bc0d59db5 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -430,6 +430,25 @@ void __init numa_emu_cmdline(char *str) cmdline = str; } +int __init find_node_by_addr(unsigned long addr) +{ + int ret = NUMA_NO_NODE; + int i; + + for_each_node_mask(i, mem_nodes_parsed) { + /* + * Find the real node that this emulated node appears on. For + * the sake of simplicity, we only use a real node's starting + * address to determine which emulated node it appears on. + */ + if (addr >= numa_nodes[i].start && addr < numa_nodes[i].end) { + ret = i; + break; + } + } + return ret; +} + static int __init setup_physnodes(unsigned long start, unsigned long end) { int ret = 0; |