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Fix build error for numa_clear_node() under IA64

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numa_clear_node() function is not implemented under IA64,
it will be called in unmap_cpu_on_node() in mm/memory_hotplug.c.
This cause build error under IA64, this patch adds numa_clear_node()
in IA64 to fix this problem.

[Added __cpuinit notation to numa_clear_node() to keep linker happy -Tony]

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Yijing Wang 2013-03-21 11:50:30 +08:00 committed by Tony Luck
parent d303e9e98f
commit eee46b3de7
2 changed files with 7 additions and 3 deletions
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5
arch/ia64/include/asm/numa.h
View file

@ -67,14 +67,13 @@ extern int paddr_to_nid(unsigned long paddr);
extern void map_cpu_to_node(int cpu, int nid);
extern void unmap_cpu_from_node(int cpu, int nid);
extern void numa_clear_node(int cpu);
#else /* !CONFIG_NUMA */
#define map_cpu_to_node(cpu, nid) do{}while(0)
#define unmap_cpu_from_node(cpu, nid) do{}while(0)
#define paddr_to_nid(addr) 0
#define numa_clear_node(cpu) do { } while (0)
#endif /* CONFIG_NUMA */
#endif /* _ASM_IA64_NUMA_H */

5
arch/ia64/mm/numa.c
View file

@ -73,6 +73,11 @@ int __meminit __early_pfn_to_nid(unsigned long pfn)
return -1;
}
void __cpuinit numa_clear_node(int cpu)
{
unmap_cpu_from_node(cpu, NUMA_NO_NODE);
}
#ifdef CONFIG_MEMORY_HOTPLUG
/*
* SRAT information is stored in node_memblk[], then we can use SRAT