2 * include/linux/node.h - generic node definition
4 * This is mainly for topological representation. We define the
5 * basic 'struct node' here, which can be embedded in per-arch
6 * definitions of processors.
8 * Basic handling of the devices is done in drivers/base/node.c
9 * and system devices are handled in drivers/base/sys.c.
11 * Nodes are exported via driverfs in the class/node/devices/
14 #ifndef _LINUX_NODE_H_
15 #define _LINUX_NODE_H_
17 #include <linux/sysdev.h>
18 #include <linux/cpumask.h>
19 #include <linux/workqueue.h>
22 struct sys_device sysdev;
24 #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS)
25 struct work_struct node_work;
30 extern struct node node_devices[];
31 typedef void (*node_registration_func_t)(struct node *);
33 extern int register_node(struct node *, int, struct node *);
34 extern void unregister_node(struct node *node);
36 extern int register_one_node(int nid);
37 extern void unregister_one_node(int nid);
38 extern int register_cpu_under_node(unsigned int cpu, unsigned int nid);
39 extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid);
40 extern int register_mem_sect_under_node(struct memory_block *mem_blk,
42 extern int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
43 unsigned long phys_index);
45 #ifdef CONFIG_HUGETLBFS
46 extern void register_hugetlbfs_with_node(node_registration_func_t doregister,
47 node_registration_func_t unregister);
50 static inline int register_one_node(int nid)
54 static inline int unregister_one_node(int nid)
58 static inline int register_cpu_under_node(unsigned int cpu, unsigned int nid)
62 static inline int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
66 static inline int register_mem_sect_under_node(struct memory_block *mem_blk,
71 static inline int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
72 unsigned long phys_index)
77 static inline void register_hugetlbfs_with_node(node_registration_func_t reg,
78 node_registration_func_t unreg)
83 #define to_node(sys_device) container_of(sys_device, struct node, sysdev)
85 #endif /* _LINUX_NODE_H_ */