tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _LINUX_SCHED_NUMA_BALANCING_H
2#define _LINUX_SCHED_NUMA_BALANCING_H
3
4/*
5 * This is the interface between the scheduler and the MM that
6 * implements memory access pattern based NUMA-balancing:
7 */
8
9#include <linux/sched.h>
10
11#define TNF_MIGRATED 0x01
12#define TNF_NO_GROUP 0x02
13#define TNF_SHARED 0x04
14#define TNF_FAULT_LOCAL 0x08
15#define TNF_MIGRATE_FAIL 0x10
16
17#ifdef CONFIG_NUMA_BALANCING
18extern void task_numa_fault(int last_node, int node, int pages, int flags);
19extern pid_t task_numa_group_id(struct task_struct *p);
20extern void set_numabalancing_state(bool enabled);
21extern void task_numa_free(struct task_struct *p);
22extern bool should_numa_migrate_memory(struct task_struct *p, struct page *page,
23 int src_nid, int dst_cpu);
24#else
25static inline void task_numa_fault(int last_node, int node, int pages,
26 int flags)
27{
28}
29static inline pid_t task_numa_group_id(struct task_struct *p)
30{
31 return 0;
32}
33static inline void set_numabalancing_state(bool enabled)
34{
35}
36static inline void task_numa_free(struct task_struct *p)
37{
38}
39static inline bool should_numa_migrate_memory(struct task_struct *p,
40 struct page *page, int src_nid, int dst_cpu)
41{
42 return true;
43}
44#endif
45
46#endif /* _LINUX_SCHED_NUMA_BALANCING_H */