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    Subject[PATCH 02/10] x86: Change size of node ids from u8 to u16
    Change the size of node ids from 8 bits to 16 bits to
    accomodate more than 256 nodes.

    Signed-off-by: Mike Travis <travis@sgi.com>
    Reviewed-by: Christoph Lameter <clameter@sgi.com>
    ---
    arch/x86/mm/numa_64.c | 9 ++++++---
    arch/x86/mm/srat_64.c | 2 +-
    include/asm-x86/numa_64.h | 4 ++--
    include/asm-x86/topology.h | 2 +-
    4 files changed, 10 insertions(+), 7 deletions(-)

    --- a/arch/x86/mm/numa_64.c
    +++ b/arch/x86/mm/numa_64.c
    @@ -11,6 +11,7 @@
    #include <linux/ctype.h>
    #include <linux/module.h>
    #include <linux/nodemask.h>
    +#include <linux/sched.h>

    #include <asm/e820.h>
    #include <asm/proto.h>
    @@ -30,12 +31,12 @@ bootmem_data_t plat_node_bdata[MAX_NUMNO

    struct memnode memnode;

    -int cpu_to_node_map[NR_CPUS] __read_mostly = {
    +u16 cpu_to_node_map[NR_CPUS] __read_mostly = {
    [0 ... NR_CPUS-1] = NUMA_NO_NODE
    };
    EXPORT_SYMBOL(cpu_to_node_map);

    -unsigned char apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
    +u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
    [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
    };

    @@ -544,7 +545,9 @@ void __init numa_initmem_init(unsigned l
    node_set(0, node_possible_map);
    for (i = 0; i < NR_CPUS; i++)
    numa_set_node(i, 0);
    - node_to_cpumask_map[0] = cpumask_of_cpu(0);
    + /* we can't use cpumask_of_cpu() yet */
    + memset(&node_to_cpumask_map[0], 0, sizeof(node_to_cpumask_map[0]));
    + cpu_set(0, node_to_cpumask_map[0]);
    e820_register_active_regions(0, start_pfn, end_pfn);
    setup_node_bootmem(0, start_pfn << PAGE_SHIFT, end_pfn << PAGE_SHIFT);
    }
    --- a/arch/x86/mm/srat_64.c
    +++ b/arch/x86/mm/srat_64.c
    @@ -391,7 +391,7 @@ int __init acpi_scan_nodes(unsigned long
    static int fake_node_to_pxm_map[MAX_NUMNODES] __initdata = {
    [0 ... MAX_NUMNODES-1] = PXM_INVAL
    };
    -static unsigned char fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
    +static u16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
    [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
    };
    static int __init find_node_by_addr(unsigned long addr)
    --- a/include/asm-x86/numa_64.h
    +++ b/include/asm-x86/numa_64.h
    @@ -20,7 +20,7 @@ extern void numa_set_node(int cpu, int n
    extern void srat_reserve_add_area(int nodeid);
    extern int hotadd_percent;

    -extern unsigned char apicid_to_node[MAX_LOCAL_APIC];
    +extern u16 apicid_to_node[MAX_LOCAL_APIC];

    extern void numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn);
    extern unsigned long numa_free_all_bootmem(void);
    @@ -40,6 +40,6 @@ static inline void clear_node_cpumask(in
    #define clear_node_cpumask(cpu) do {} while (0)
    #endif

    -#define NUMA_NO_NODE 0xff
    +#define NUMA_NO_NODE 0xffff

    #endif
    --- a/include/asm-x86/topology.h
    +++ b/include/asm-x86/topology.h
    @@ -30,7 +30,7 @@
    #include <asm/mpspec.h>

    /* Mappings between logical cpu number and node number */
    -extern int cpu_to_node_map[];
    +extern u16 cpu_to_node_map[];
    extern cpumask_t node_to_cpumask_map[];

    /* Returns the number of the node containing CPU 'cpu' */
    --


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