openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

x86: change NR_CPUS arrays in numa_64 

Change the following static arrays sized by NR_CPUS to
per_cpu data variables:

	char cpu_to_node_map[NR_CPUS];

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>
This commit is contained in:
travis@sgi.com 2008-01-30 13:33:11 +01:00 committed by Ingo Molnar
parent 3b41908902
commit df3825c56d
6 changed files with 38 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/x86/kernel/setup_64.c
View File

@ -65,6 +65,7 @@
#include <asm/cacheflush.h>
#include <asm/mce.h>
#include <asm/ds.h>
#include <asm/topology.h>
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
@ -359,8 +360,9 @@ void __init setup_arch(char **cmdline_p)
io_delay_init();
#ifdef CONFIG_SMP
/* setup to use the static apicid table during kernel startup */
/* setup to use the early static init tables during kernel startup */
x86_cpu_to_apicid_early_ptr = (void *)&x86_cpu_to_apicid_init;
x86_cpu_to_node_map_early_ptr = (void *)&x86_cpu_to_node_map_init;
#endif
#ifdef CONFIG_ACPI

6
arch/x86/kernel/smpboot_64.c
View File

@ -861,9 +861,12 @@ void __init smp_set_apicids(void)
int cpu;
for_each_possible_cpu(cpu) {
if (per_cpu_offset(cpu))
if (per_cpu_offset(cpu)) {
per_cpu(x86_cpu_to_apicid, cpu) =
x86_cpu_to_apicid_init[cpu];
per_cpu(x86_cpu_to_node_map, cpu) =
x86_cpu_to_node_map_init[cpu];
}
else
printk(KERN_NOTICE "per_cpu_offset zero for cpu %d\n",
cpu);
@ -871,6 +874,7 @@ void __init smp_set_apicids(void)
/* indicate the early static arrays are gone */
x86_cpu_to_apicid_early_ptr = NULL;
x86_cpu_to_node_map_early_ptr = NULL;
}
static void __init smp_cpu_index_default(void)

20
arch/x86/mm/numa_64.c
View File

@ -31,10 +31,14 @@ bootmem_data_t plat_node_bdata[MAX_NUMNODES];
struct memnode memnode;
u16 cpu_to_node_map[NR_CPUS] __read_mostly = {
u16 x86_cpu_to_node_map_init[NR_CPUS] __initdata = {
[0 ... NR_CPUS-1] = NUMA_NO_NODE
};
EXPORT_SYMBOL(cpu_to_node_map);
void *x86_cpu_to_node_map_early_ptr;
EXPORT_SYMBOL(x86_cpu_to_node_map_init);
EXPORT_SYMBOL(x86_cpu_to_node_map_early_ptr);
DEFINE_PER_CPU(u16, x86_cpu_to_node_map) = NUMA_NO_NODE;
EXPORT_PER_CPU_SYMBOL(x86_cpu_to_node_map);
u16 apicid_to_node[MAX_LOCAL_APIC] __cpuinitdata = {
[0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
@ -544,7 +548,7 @@ void __init numa_initmem_init(unsigned long start_pfn, unsigned long end_pfn)
node_set(0, node_possible_map);
for (i = 0; i < NR_CPUS; i++)
numa_set_node(i, 0);
/* we can't use cpumask_of_cpu() yet */
/* cpumask_of_cpu() may not be available during early startup */
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);
@ -558,8 +562,16 @@ __cpuinit void numa_add_cpu(int cpu)
void __cpuinit numa_set_node(int cpu, int node)
{
u16 *cpu_to_node_map = (u16 *)x86_cpu_to_node_map_early_ptr;
cpu_pda(cpu)->nodenumber = node;
cpu_to_node_map[cpu] = node;
if(cpu_to_node_map)
cpu_to_node_map[cpu] = node;
else if(per_cpu_offset(cpu))
per_cpu(x86_cpu_to_node_map, cpu) = node;
else
Dprintk(KERN_INFO "Setting node for non-present cpu %d\n", cpu);
}
unsigned long __init numa_free_all_bootmem(void)

2
include/asm-x86/numa_64.h
View File

@ -40,6 +40,4 @@ static inline void clear_node_cpumask(int cpu)
#define clear_node_cpumask(cpu) do {} while (0)
#endif
#define NUMA_NO_NODE 0xffff
#endif

15
include/asm-x86/topology.h
View File

@ -30,13 +30,24 @@
#include <asm/mpspec.h>
/* Mappings between logical cpu number and node number */
extern u16 cpu_to_node_map[];
DECLARE_PER_CPU(u16, x86_cpu_to_node_map);
extern u16 __initdata x86_cpu_to_node_map_init[];
extern void *x86_cpu_to_node_map_early_ptr;
extern cpumask_t node_to_cpumask_map[];
#define NUMA_NO_NODE ((u16)(~0))
/* Returns the number of the node containing CPU 'cpu' */
static inline int cpu_to_node(int cpu)
{
return cpu_to_node_map[cpu];
u16 *cpu_to_node_map = (u16 *)x86_cpu_to_node_map_early_ptr;
if (cpu_to_node_map)
return cpu_to_node_map[cpu];
else if (per_cpu_offset(cpu))
return per_cpu(x86_cpu_to_node_map, cpu);
else
return NUMA_NO_NODE;
}
/*

1
net/sunrpc/svc.c
View File

@ -18,6 +18,7 @@
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <linux/sunrpc/types.h>
#include <linux/sunrpc/xdr.h>