diff options
| -rw-r--r-- | include/linux/vm_event_item.h | 1 | ||||
| -rw-r--r-- | mm/mprotect.c | 10 | ||||
| -rw-r--r-- | mm/vmstat.c | 1 |
3 files changed, 9 insertions, 3 deletions
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h index 1855f0a..c557c6d 100644 --- a/include/linux/vm_event_item.h +++ b/include/linux/vm_event_item.h @@ -39,6 +39,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, PAGEOUTRUN, ALLOCSTALL, PGROTATED, #ifdef CONFIG_NUMA_BALANCING NUMA_PTE_UPDATES, + NUMA_HUGE_PTE_UPDATES, NUMA_HINT_FAULTS, NUMA_HINT_FAULTS_LOCAL, NUMA_PAGE_MIGRATE, diff --git a/mm/mprotect.c b/mm/mprotect.c index a597f2f..26667971 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -112,6 +112,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, pmd_t *pmd; unsigned long next; unsigned long pages = 0; + unsigned long nr_huge_updates = 0; pmd = pmd_offset(pud, addr); do { @@ -126,9 +127,10 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, newprot, prot_numa); if (nr_ptes) { - if (nr_ptes == HPAGE_PMD_NR) - pages++; - + if (nr_ptes == HPAGE_PMD_NR) { + pages += HPAGE_PMD_NR; + nr_huge_updates++; + } continue; } } @@ -141,6 +143,8 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, pages += this_pages; } while (pmd++, addr = next, addr != end); + if (nr_huge_updates) + count_vm_numa_events(NUMA_HUGE_PTE_UPDATES, nr_huge_updates); return pages; } diff --git a/mm/vmstat.c b/mm/vmstat.c index b6d17ed..7249614 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -812,6 +812,7 @@ const char * const vmstat_text[] = { #ifdef CONFIG_NUMA_BALANCING "numa_pte_updates", + "numa_huge_pte_updates", "numa_hint_faults", "numa_hint_faults_local", "numa_pages_migrated", |
