#ifndef _LINUX_CPUSET_H#define _LINUX_CPUSET_H/* *  cpuset interface * *  Copyright (C) 2003 BULL SA *  Copyright (C) 2004-2006 Silicon Graphics, Inc. * */ #include <linux/sched.h>#include <linux/cpumask.h>#include <linux/nodemask.h> #ifdef CONFIG_CPUSETS extern int number_of_cpusets;	/* How many cpusets are defined in system? */ extern int cpuset_init_early(void);extern int cpuset_init(void);extern void cpuset_init_smp(void);extern void cpuset_fork(struct task_struct *p);extern void cpuset_exit(struct task_struct *p);extern cpumask_t cpuset_cpus_allowed(struct task_struct *p);extern nodemask_t cpuset_mems_allowed(struct task_struct *p);void cpuset_init_current_mems_allowed(void);void cpuset_update_task_memory_state(void);#define cpuset_nodes_subset_current_mems_allowed(nodes) \		nodes_subset((nodes), current->mems_allowed)int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl); extern int __cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask);static int inline cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask){	return number_of_cpusets <= 1 || __cpuset_zone_allowed(z, gfp_mask);} extern int cpuset_excl_nodes_overlap(const struct task_struct *p); #define cpuset_memory_pressure_bump() 				\	do {							\		if (cpuset_memory_pressure_enabled)		\			__cpuset_memory_pressure_bump();	\	} while (0)extern int cpuset_memory_pressure_enabled;extern void __cpuset_memory_pressure_bump(void); extern struct file_operations proc_cpuset_operations;extern char *cpuset_task_status_allowed(struct task_struct *task, char *buffer); extern void cpuset_lock(void);extern void cpuset_unlock(void); extern int cpuset_mem_spread_node(void); static inline int cpuset_do_page_mem_spread(void){	return current->flags & PF_SPREAD_PAGE;} static inline int cpuset_do_slab_mem_spread(void){	return current->flags & PF_SPREAD_SLAB;} #else /* !CONFIG_CPUSETS */ static inline int cpuset_init_early(void) { return 0; }static inline int cpuset_init(void) { return 0; }static inline void cpuset_init_smp(void) {}static inline void cpuset_fork(struct task_struct *p) {}static inline void cpuset_exit(struct task_struct *p) {} static inline cpumask_t cpuset_cpus_allowed(struct task_struct *p){	return cpu_possible_map;} static inline nodemask_t cpuset_mems_allowed(struct task_struct *p){	return node_possible_map;} static inline void cpuset_init_current_mems_allowed(void) {}static inline void cpuset_update_task_memory_state(void) {}#define cpuset_nodes_subset_current_mems_allowed(nodes) (1) static inline int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl){	return 1;} static inline int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask){	return 1;} static inline int cpuset_excl_nodes_overlap(const struct task_struct *p){	return 1;} static inline void cpuset_memory_pressure_bump(void) {} static inline char *cpuset_task_status_allowed(struct task_struct *task,							char *buffer){	return buffer;} static inline void cpuset_lock(void) {}static inline void cpuset_unlock(void) {} static inline int cpuset_mem_spread_node(void){	return 0;} static inline int cpuset_do_page_mem_spread(void){	return 0;} static inline int cpuset_do_slab_mem_spread(void){	return 0;} #endif /* !CONFIG_CPUSETS */ #endif /* _LINUX_CPUSET_H */