diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/cpuset.h | 64 | ||||
| -rw-r--r-- | include/linux/sched.h | 7 |
2 files changed, 71 insertions, 0 deletions
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h new file mode 100644 index 000000000000..5d3cb0dff332 --- /dev/null +++ b/include/linux/cpuset.h @@ -0,0 +1,64 @@ +#ifndef _LINUX_CPUSET_H +#define _LINUX_CPUSET_H +/* + * cpuset interface + * + * Copyright (C) 2003 BULL SA + * Copyright (C) 2004 Silicon Graphics, Inc. + * + */ + +#include <linux/sched.h> +#include <linux/cpumask.h> +#include <linux/nodemask.h> + +#ifdef CONFIG_CPUSETS + +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 const cpumask_t cpuset_cpus_allowed(const struct task_struct *p); +void cpuset_init_current_mems_allowed(void); +void cpuset_update_current_mems_allowed(void); +void cpuset_restrict_to_mems_allowed(unsigned long *nodes); +int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl); +int cpuset_zone_allowed(struct zone *z); +extern struct file_operations proc_cpuset_operations; +extern char *cpuset_task_status_allowed(struct task_struct *task, char *buffer); + +#else /* !CONFIG_CPUSETS */ + +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 const cpumask_t cpuset_cpus_allowed(struct task_struct *p) +{ + return cpu_possible_map; +} + +static inline void cpuset_init_current_mems_allowed(void) {} +static inline void cpuset_update_current_mems_allowed(void) {} +static inline void cpuset_restrict_to_mems_allowed(unsigned long *nodes) {} + +static inline int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl) +{ + return 1; +} + +static inline int cpuset_zone_allowed(struct zone *z) +{ + return 1; +} + +static inline char *cpuset_task_status_allowed(struct task_struct *task, + char *buffer) +{ + return buffer; +} + +#endif /* !CONFIG_CPUSETS */ + +#endif /* _LINUX_CPUSET_H */ diff --git a/include/linux/sched.h b/include/linux/sched.h index f564b18dbaed..637c88e5f5b8 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -14,6 +14,7 @@ #include <linux/thread_info.h> #include <linux/cpumask.h> #include <linux/errno.h> +#include <linux/nodemask.h> #include <asm/system.h> #include <asm/semaphore.h> @@ -514,6 +515,7 @@ extern void cpu_attach_domain(struct sched_domain *sd, int cpu); struct io_context; /* See blkdev.h */ void exit_io_context(void); +struct cpuset; #define NGROUPS_SMALL 32 #define NGROUPS_PER_BLOCK ((int)(PAGE_SIZE / sizeof(gid_t))) @@ -712,6 +714,11 @@ struct task_struct { struct mempolicy *mempolicy; short il_next; #endif +#ifdef CONFIG_CPUSETS + struct cpuset *cpuset; + nodemask_t mems_allowed; + int cpuset_mems_generation; +#endif }; static inline pid_t process_group(struct task_struct *tsk) |