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(const struct task_struct
*p
);
22 void cpuset_init_current_mems_allowed(void);
23 void cpuset_update_task_memory_state(void);
24 #define cpuset_nodes_subset_current_mems_allowed(nodes) \
25 nodes_subset((nodes), current->mems_allowed)
26 int cpuset_zonelist_valid_mems_allowed(struct zonelist
*zl
);
27 extern int cpuset_zone_allowed(struct zone
*z
, gfp_t gfp_mask
);
28 extern int cpuset_excl_nodes_overlap(const struct task_struct
*p
);
30 #define cpuset_memory_pressure_bump() \
32 if (cpuset_memory_pressure_enabled) \
33 __cpuset_memory_pressure_bump(); \
35 extern int cpuset_memory_pressure_enabled
;
36 extern void __cpuset_memory_pressure_bump(void);
38 extern struct file_operations proc_cpuset_operations
;
39 extern char *cpuset_task_status_allowed(struct task_struct
*task
, char *buffer
);
41 #else /* !CONFIG_CPUSETS */
43 static inline int cpuset_init(void) { return 0; }
44 static inline void cpuset_init_smp(void) {}
45 static inline void cpuset_fork(struct task_struct
*p
) {}
46 static inline void cpuset_exit(struct task_struct
*p
) {}
48 static inline cpumask_t
cpuset_cpus_allowed(struct task_struct
*p
)
50 return cpu_possible_map
;
53 static inline void cpuset_init_current_mems_allowed(void) {}
54 static inline void cpuset_update_task_memory_state(void) {}
55 #define cpuset_nodes_subset_current_mems_allowed(nodes) (1)
57 static inline int cpuset_zonelist_valid_mems_allowed(struct zonelist
*zl
)
62 static inline int cpuset_zone_allowed(struct zone
*z
, gfp_t gfp_mask
)
67 static inline int cpuset_excl_nodes_overlap(const struct task_struct
*p
)
72 static inline void cpuset_memory_pressure_bump(void) {}
74 static inline char *cpuset_task_status_allowed(struct task_struct
*task
,
80 #endif /* !CONFIG_CPUSETS */
82 #endif /* _LINUX_CPUSET_H */