48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _LINUX_SCHED_NUMA_BALANCING_H
|
|
#define _LINUX_SCHED_NUMA_BALANCING_H
|
|
|
|
/*
|
|
* This is the interface between the scheduler and the MM that
|
|
* implements memory access pattern based NUMA-balancing:
|
|
*/
|
|
|
|
#include <linux/sched.h>
|
|
|
|
#define TNF_MIGRATED 0x01
|
|
#define TNF_NO_GROUP 0x02
|
|
#define TNF_SHARED 0x04
|
|
#define TNF_FAULT_LOCAL 0x08
|
|
#define TNF_MIGRATE_FAIL 0x10
|
|
|
|
#ifdef CONFIG_NUMA_BALANCING
|
|
extern void task_numa_fault(int last_node, int node, int pages, int flags);
|
|
extern pid_t task_numa_group_id(struct task_struct *p);
|
|
extern void set_numabalancing_state(bool enabled);
|
|
extern void task_numa_free(struct task_struct *p, bool final);
|
|
extern bool should_numa_migrate_memory(struct task_struct *p, struct page *page,
|
|
int src_nid, int dst_cpu);
|
|
#else
|
|
static inline void task_numa_fault(int last_node, int node, int pages,
|
|
int flags)
|
|
{
|
|
}
|
|
static inline pid_t task_numa_group_id(struct task_struct *p)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void set_numabalancing_state(bool enabled)
|
|
{
|
|
}
|
|
static inline void task_numa_free(struct task_struct *p, bool final)
|
|
{
|
|
}
|
|
static inline bool should_numa_migrate_memory(struct task_struct *p,
|
|
struct page *page, int src_nid, int dst_cpu)
|
|
{
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
#endif /* _LINUX_SCHED_NUMA_BALANCING_H */
|