[net-next-2.6.git] / include / linux / cpuset.h

#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 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);
extern int cpuset_zone_allowed(struct zone *z, unsigned int __nocast gfp_mask);
extern int cpuset_excl_nodes_overlap(const struct task_struct *p);
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 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,
					unsigned int __nocast gfp_mask)
{
	return 1;
}

static inline int cpuset_excl_nodes_overlap(const struct task_struct *p)
{
	return 1;
}

static inline char *cpuset_task_status_allowed(struct task_struct *task,
							char *buffer)
{
	return buffer;
}

#endif /* !CONFIG_CPUSETS */

#endif /* _LINUX_CPUSET_H */
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_CPUSET_H
	2	#define _LINUX_CPUSET_H
	3	/*
	4	* cpuset interface
	5	*
	6	* Copyright (C) 2003 BULL SA
	7	* Copyright (C) 2004 Silicon Graphics, Inc.
	8	*
	9	*/
	10
	11	#include <linux/sched.h>
	12	#include <linux/cpumask.h>
	13	#include <linux/nodemask.h>
	14
	15	#ifdef CONFIG_CPUSETS
	16
	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);
9a848896	21	extern cpumask_t cpuset_cpus_allowed(const struct task_struct *p);
1da177e4 LT	22	void cpuset_init_current_mems_allowed(void);
	23	void cpuset_update_current_mems_allowed(void);
	24	void cpuset_restrict_to_mems_allowed(unsigned long *nodes);
	25	int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl);
9bf2229f	26	extern int cpuset_zone_allowed(struct zone *z, unsigned int __nocast gfp_mask);
ef08e3b4	27	extern int cpuset_excl_nodes_overlap(const struct task_struct *p);
1da177e4 LT	28	extern struct file_operations proc_cpuset_operations;
	29	extern char cpuset_task_status_allowed(struct task_struct task, char *buffer);
	30
	31	#else /* !CONFIG_CPUSETS */
	32
	33	static inline int cpuset_init(void) { return 0; }
	34	static inline void cpuset_init_smp(void) {}
	35	static inline void cpuset_fork(struct task_struct *p) {}
	36	static inline void cpuset_exit(struct task_struct *p) {}
	37
	38	static inline cpumask_t cpuset_cpus_allowed(struct task_struct *p)
	39	{
	40	return cpu_possible_map;
	41	}
	42
	43	static inline void cpuset_init_current_mems_allowed(void) {}
	44	static inline void cpuset_update_current_mems_allowed(void) {}
	45	static inline void cpuset_restrict_to_mems_allowed(unsigned long *nodes) {}
	46
	47	static inline int cpuset_zonelist_valid_mems_allowed(struct zonelist *zl)
	48	{
	49	return 1;
	50	}
	51
9bf2229f PJ	52	static inline int cpuset_zone_allowed(struct zone *z,
9bf2229f PJ	53	unsigned int __nocast gfp_mask)
1da177e4 LT	54	{
	55	return 1;
	56	}
	57
ef08e3b4 PJ	58	static inline int cpuset_excl_nodes_overlap(const struct task_struct *p)
	59	{
	60	return 1;
	61	}
	62
1da177e4 LT	63	static inline char cpuset_task_status_allowed(struct task_struct task,
	64	char *buffer)
	65	{
	66	return buffer;
	67	}
	68
	69	#endif /* !CONFIG_CPUSETS */
	70
	71	#endif /* _LINUX_CPUSET_H */