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/device.h>
18 #include <linux/cpumask.h>
19 #include <linux/workqueue.h>
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 void unregister_node(struct node *node);
35 extern int register_one_node(int nid);
36 extern void unregister_one_node(int nid);
37 extern int register_cpu_under_node(unsigned int cpu, unsigned int nid);
38 extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid);
39 extern int register_mem_sect_under_node(struct memory_block *mem_blk,
41 extern int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
42 unsigned long phys_index);
44 #ifdef CONFIG_HUGETLBFS
45 extern void register_hugetlbfs_with_node(node_registration_func_t doregister,
46 node_registration_func_t unregister);
49 static inline int register_one_node(int nid)
53 static inline int unregister_one_node(int nid)
57 static inline int register_cpu_under_node(unsigned int cpu, unsigned int nid)
61 static inline int unregister_cpu_under_node(unsigned int cpu, unsigned int nid)
65 static inline int register_mem_sect_under_node(struct memory_block *mem_blk,
70 static inline int unregister_mem_sect_under_nodes(struct memory_block *mem_blk,
71 unsigned long phys_index)
76 static inline void register_hugetlbfs_with_node(node_registration_func_t reg,
77 node_registration_func_t unreg)
82 #define to_node(device) container_of(device, struct node, dev)
84 #endif /* _LINUX_NODE_H_ */