diff options
Diffstat (limited to 'include/linux/mm_types.h')
| -rw-r--r-- | include/linux/mm_types.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 7ade2731b5d..7d9ebb7cc98 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -175,6 +175,10 @@ struct page { */ void *shadow; #endif + +#ifdef CONFIG_NUMA_BALANCING + int _last_nid; +#endif } /* * The struct page can be forced to be double word aligned so that atomic ops @@ -411,9 +415,36 @@ struct mm_struct { #ifdef CONFIG_CPUMASK_OFFSTACK struct cpumask cpumask_allocation; #endif +#ifdef CONFIG_NUMA_BALANCING + /* + * numa_next_scan is the next time when the PTEs will me marked + * pte_numa to gather statistics and migrate pages to new nodes + * if necessary + */ + unsigned long numa_next_scan; + + /* numa_next_reset is when the PTE scanner period will be reset */ + unsigned long numa_next_reset; + + /* Restart point for scanning and setting pte_numa */ + unsigned long numa_scan_offset; + + /* numa_scan_seq prevents two threads setting pte_numa */ + int numa_scan_seq; + + /* + * The first node a task was scheduled on. If a task runs on + * a different node than Make PTE Scan Go Now. + */ + int first_nid; +#endif struct uprobes_state uprobes_state; }; +/* first nid will either be a valid NID or one of these values */ +#define NUMA_PTE_SCAN_INIT -1 +#define NUMA_PTE_SCAN_ACTIVE -2 + static inline void mm_init_cpumask(struct mm_struct *mm) { #ifdef CONFIG_CPUMASK_OFFSTACK |