/* * include/linux/node.h - generic node definition * * This is mainly for topological representation. We define the * basic 'struct node' here, which can be embedded in per-arch * definitions of processors. * * Basic handling of the devices is done in drivers/base/node.c * and system devices are handled in drivers/base/sys.c. * * Nodes are exported via driverfs in the class/node/devices/ * directory. */ #ifndef _LINUX_NODE_H_ #define _LINUX_NODE_H_ #include <linux/device.h> #include <linux/cpumask.h> #include <linux/workqueue.h> struct node { struct device dev; #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HUGETLBFS) struct work_struct node_work; #endif }; struct memory_block; extern struct node *node_devices[]; typedef void (*node_registration_func_t)(struct node *); extern void unregister_node(struct node *node); #ifdef CONFIG_NUMA extern int register_one_node(int nid); extern void unregister_one_node(int nid); extern int register_cpu_under_node(unsigned int cpu, unsigned int nid); extern int unregister_cpu_under_node(unsigned int cpu, unsigned int nid); extern int register_mem_sect_under_node(struct memory_block *mem_blk, int nid); extern int unregister_mem_sect_under_nodes(struct memory_block *mem_blk, unsigned long phys_index); #ifdef CONFIG_HUGETLBFS extern void register_hugetlbfs_with_node(node_registration_func_t doregister, node_registration_func_t unregister); #endif #else static inline int register_one_node(int nid) { return 0; } static inline int unregister_one_node(int nid) { return 0; } static inline int register_cpu_under_node(unsigned int cpu, unsigned int nid) { return 0; } static inline int unregister_cpu_under_node(unsigned int cpu, unsigned int nid) { return 0; } static inline int register_mem_sect_under_node(struct memory_block *mem_blk, int nid) { return 0; } static inline int unregister_mem_sect_under_nodes(struct memory_block *mem_blk, unsigned long phys_index) { return 0; } static inline void register_hugetlbfs_with_node(node_registration_func_t reg, node_registration_func_t unreg) { } #endif #define to_node(device) container_of(device, struct node, dev) #endif /* _LINUX_NODE_H_ */