LCOV - code coverage report
Current view: top level - include/linux/sched - numa_balancing.h (source / functions) Hit Total Coverage
Test: combined.info Lines: 4 6 66.7 %
Date: 2022-03-28 13:20:08 Functions: 0 0 -
Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* SPDX-License-Identifier: GPL-2.0 */
       2                 :            : #ifndef _LINUX_SCHED_NUMA_BALANCING_H
       3                 :            : #define _LINUX_SCHED_NUMA_BALANCING_H
       4                 :            : 
       5                 :            : /*
       6                 :            :  * This is the interface between the scheduler and the MM that
       7                 :            :  * implements memory access pattern based NUMA-balancing:
       8                 :            :  */
       9                 :            : 
      10                 :            : #include <linux/sched.h>
      11                 :            : 
      12                 :            : #define TNF_MIGRATED    0x01
      13                 :            : #define TNF_NO_GROUP    0x02
      14                 :            : #define TNF_SHARED      0x04
      15                 :            : #define TNF_FAULT_LOCAL 0x08
      16                 :            : #define TNF_MIGRATE_FAIL 0x10
      17                 :            : 
      18                 :            : #ifdef CONFIG_NUMA_BALANCING
      19                 :            : extern void task_numa_fault(int last_node, int node, int pages, int flags);
      20                 :            : extern pid_t task_numa_group_id(struct task_struct *p);
      21                 :            : extern void set_numabalancing_state(bool enabled);
      22                 :            : extern void task_numa_free(struct task_struct *p, bool final);
      23                 :            : extern bool should_numa_migrate_memory(struct task_struct *p, struct page *page,
      24                 :            :                                         int src_nid, int dst_cpu);
      25                 :            : #else
      26                 :            : static inline void task_numa_fault(int last_node, int node, int pages,
      27                 :            :                                    int flags)
      28                 :            : {
      29                 :            : }
      30                 :        672 : static inline pid_t task_numa_group_id(struct task_struct *p)
      31                 :            : {
      32                 :        672 :         return 0;
      33                 :            : }
      34                 :            : static inline void set_numabalancing_state(bool enabled)
      35                 :            : {
      36                 :            : }
      37                 :      11827 : static inline void task_numa_free(struct task_struct *p, bool final)
      38                 :            : {
      39                 :      11827 : }
      40                 :          0 : static inline bool should_numa_migrate_memory(struct task_struct *p,
      41                 :            :                                 struct page *page, int src_nid, int dst_cpu)
      42                 :            : {
      43                 :          0 :         return true;
      44                 :            : }
      45                 :            : #endif
      46                 :            : 
      47                 :            : #endif /* _LINUX_SCHED_NUMA_BALANCING_H */

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