diff options
Diffstat (limited to 'arch/x86/mm/numa_64.c')
| -rw-r--r-- | arch/x86/mm/numa_64.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c index a96767cb068f..4057b5d43918 100644 --- a/arch/x86/mm/numa_64.c +++ b/arch/x86/mm/numa_64.c @@ -28,7 +28,12 @@ EXPORT_SYMBOL(node_data); nodemask_t numa_nodes_parsed __initdata; -static struct numa_meminfo numa_meminfo __initdata; +static struct numa_meminfo numa_meminfo +#ifndef CONFIG_MEMORY_HOTPLUG +__initdata +#endif +; + static int numa_distance_cnt; static u8 *numa_distance; @@ -540,3 +545,18 @@ int __cpuinit numa_cpu_node(int cpu) return __apicid_to_node[apicid]; return NUMA_NO_NODE; } + +#ifdef CONFIG_MEMORY_HOTPLUG +int memory_add_physaddr_to_nid(u64 start) +{ + struct numa_meminfo *mi = &numa_meminfo; + int nid = mi->blk[0].nid; + int i; + + for (i = 0; i < mi->nr_blks; i++) + if (mi->blk[i].start <= start && mi->blk[i].end > start) + nid = mi->blk[i].nid; + return nid; +} +EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid); +#endif |