diff options
| -rw-r--r-- | include/linux/vmstat.h | 4 | ||||
| -rw-r--r-- | mm/hugetlb.c | 7 | ||||
| -rw-r--r-- | mm/vmstat.c | 4 |
3 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h index e726b6d4649..e83b69346d2 100644 --- a/include/linux/vmstat.h +++ b/include/linux/vmstat.h @@ -25,6 +25,7 @@ #define HIGHMEM_ZONE(xx) #endif + #define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL HIGHMEM_ZONE(xx) , xx##_MOVABLE enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, @@ -37,6 +38,9 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT, FOR_ALL_ZONES(PGSCAN_DIRECT), PGINODESTEAL, SLABS_SCANNED, KSWAPD_STEAL, KSWAPD_INODESTEAL, PAGEOUTRUN, ALLOCSTALL, PGROTATED, +#ifdef CONFIG_HUGETLB_PAGE + HTLB_BUDDY_PGALLOC, HTLB_BUDDY_PGALLOC_FAIL, +#endif NR_VM_EVENT_ITEMS }; diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 93ea46a0fba..8deae4eb969 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -242,6 +242,11 @@ static int alloc_fresh_huge_page(void) hugetlb_next_nid = next_nid; } while (!page && hugetlb_next_nid != start_nid); + if (ret) + count_vm_event(HTLB_BUDDY_PGALLOC); + else + count_vm_event(HTLB_BUDDY_PGALLOC_FAIL); + return ret; } @@ -302,9 +307,11 @@ static struct page *alloc_buddy_huge_page(struct vm_area_struct *vma, */ nr_huge_pages_node[nid]++; surplus_huge_pages_node[nid]++; + __count_vm_event(HTLB_BUDDY_PGALLOC); } else { nr_huge_pages--; surplus_huge_pages--; + __count_vm_event(HTLB_BUDDY_PGALLOC_FAIL); } spin_unlock(&hugetlb_lock); diff --git a/mm/vmstat.c b/mm/vmstat.c index 879bcc0a1d4..4c21670f8d9 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -645,6 +645,10 @@ static const char * const vmstat_text[] = { "allocstall", "pgrotated", +#ifdef CONFIG_HUGETLB_PAGE + "htlb_buddy_alloc_success", + "htlb_buddy_alloc_fail", +#endif #endif }; |