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