1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 |
- /* 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 */
|