1 #ifndef _LINUX_CPUSET_H
2 #define _LINUX_CPUSET_H
6 * Copyright (C) 2003 BULL SA
7 * Copyright (C) 2004 Silicon Graphics, Inc.
11 #include <linux/sched.h>
12 #include <linux/cpumask.h>
13 #include <linux/nodemask.h>
17 extern int cpuset_init(void);
18 extern void cpuset_init_smp(void);
19 extern void cpuset_fork(struct task_struct *p);
20 extern void cpuset_exit(struct task_struct *p);
21 extern cpumask_t cpuset_cpus_allowed(struct task_struct *p);
22 extern nodemask_t cpuset_mems_allowed(struct task_struct *p);
23 void cpuset_init_current_mems_allowed(void);
24 void cpuset_update_task_memory_state(void);
25 #define cpuset_nodes_subset_current_mems_allowed(nodes) \
26 nodes_subset((nodes), current->mems_allowed)
27 int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl);
28 extern int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask);
29 extern int cpuset_excl_nodes_overlap(const struct task_struct *p);
31 #define cpuset_memory_pressure_bump() \
33 if (cpuset_memory_pressure_enabled) \
34 __cpuset_memory_pressure_bump(); \
36 extern int cpuset_memory_pressure_enabled;
37 extern void __cpuset_memory_pressure_bump(void);
39 extern struct file_operations proc_cpuset_operations;
40 extern char *cpuset_task_status_allowed(struct task_struct *task, char *buffer);
42 #else /* !CONFIG_CPUSETS */
44 static inline int cpuset_init(void) { return 0; }
45 static inline void cpuset_init_smp(void) {}
46 static inline void cpuset_fork(struct task_struct *p) {}
47 static inline void cpuset_exit(struct task_struct *p) {}
49 static inline cpumask_t cpuset_cpus_allowed(struct task_struct *p)
51 return cpu_possible_map;
54 static inline nodemask_t cpuset_mems_allowed(struct task_struct *p)
56 return node_possible_map;
59 static inline void cpuset_init_current_mems_allowed(void) {}
60 static inline void cpuset_update_task_memory_state(void) {}
61 #define cpuset_nodes_subset_current_mems_allowed(nodes) (1)
63 static inline int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl)
68 static inline int cpuset_zone_allowed(struct zone *z, gfp_t gfp_mask)
73 static inline int cpuset_excl_nodes_overlap(const struct task_struct *p)
78 static inline void cpuset_memory_pressure_bump(void) {}
80 static inline char *cpuset_task_status_allowed(struct task_struct *task,
86 #endif /* !CONFIG_CPUSETS */
88 #endif /* _LINUX_CPUSET_H */