x86: change size of node ids from u8 to s16

Change the size of node ids for X86_64 from u8 to s16 to
accomodate more than 32k nodes and allow for NUMA_NO_NODE
(-1) to be sign extended to int.

Cc: David Rientjes <rientjes@google.com>
Cc: Yinghai Lu <yhlu.kernel@gmail.com>
Cc: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 6 insertions, 6 deletions

diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 441af4edea59..0ca96d86cb71 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -31,15 +31,15 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES];
 
 struct memnode memnode;
 
-u16 x86_cpu_to_node_map_init[NR_CPUS] = {
+int x86_cpu_to_node_map_init[NR_CPUS] = {
         [0 ... NR_CPUS-1] = NUMA_NO_NODE
 };
 void *x86_cpu_to_node_map_early_ptr;
-DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
+DEFINE_PER_CPU(int, x86_cpu_to_node_map) = NUMA_NO_NODE;
 EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
 EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
 
-u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
+s16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
         [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
 };
 
@@ -63,7 +63,7 @@ static int __init populate_memnodemap(const struct bootnode *nodes,
         unsigned long addr, end;
         int i, res = -1;
 
-        memset(memnodemap, 0xff, memnodemapsize);
+        memset(memnodemap, 0xff, sizeof(s16)*memnodemapsize);
         for (i = 0; i < numnodes; i++) {
                 addr = nodes[i].start;
                 end = nodes[i].end;
@@ -72,7 +72,7 @@ static int __init populate_memnodemap(const struct bootnode *nodes,
                 if ((end >> shift) >= memnodemapsize)
                         return 0;
                 do {
-                        if (memnodemap[addr >> shift] != 0xff)
+                        if (memnodemap[addr >> shift] != NUMA_NO_NODE)
                                 return -1;
                         memnodemap[addr >> shift] = i;
                         addr += (1UL << shift);
@@ -533,7 +533,7 @@ __cpuinit void numa_add_cpu(int cpu)
 
 void __cpuinit numa_set_node(int cpu, int node)
 {
-        u16 *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
+        int *cpu_to_node_map = x86_cpu_to_node_map_early_ptr;
 
         cpu_pda(cpu)->nodenumber = node;