diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/huge_memory.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 954c63575917..17fb072a0ca1 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -559,6 +559,9 @@ DEFINE_MTHP_STAT_ATTR(swpout_fallback, MTHP_STAT_SWPOUT_FALLBACK); DEFINE_MTHP_STAT_ATTR(file_alloc, MTHP_STAT_FILE_ALLOC); DEFINE_MTHP_STAT_ATTR(file_fallback, MTHP_STAT_FILE_FALLBACK); DEFINE_MTHP_STAT_ATTR(file_fallback_charge, MTHP_STAT_FILE_FALLBACK_CHARGE); +DEFINE_MTHP_STAT_ATTR(split, MTHP_STAT_SPLIT); +DEFINE_MTHP_STAT_ATTR(split_failed, MTHP_STAT_SPLIT_FAILED); +DEFINE_MTHP_STAT_ATTR(split_deferred, MTHP_STAT_SPLIT_DEFERRED); static struct attribute *stats_attrs[] = { &anon_fault_alloc_attr.attr, @@ -569,6 +572,9 @@ static struct attribute *stats_attrs[] = { &file_alloc_attr.attr, &file_fallback_attr.attr, &file_fallback_charge_attr.attr, + &split_attr.attr, + &split_failed_attr.attr, + &split_deferred_attr.attr, NULL, }; @@ -3068,7 +3074,7 @@ int split_huge_page_to_list_to_order(struct page *page, struct list_head *list, XA_STATE_ORDER(xas, &folio->mapping->i_pages, folio->index, new_order); struct anon_vma *anon_vma = NULL; struct address_space *mapping = NULL; - bool is_thp = folio_test_pmd_mappable(folio); + int order = folio_order(folio); int extra_pins, ret; pgoff_t end; bool is_hzp; @@ -3253,8 +3259,9 @@ out_unlock: i_mmap_unlock_read(mapping); out: xas_destroy(&xas); - if (is_thp) + if (order == HPAGE_PMD_ORDER) count_vm_event(!ret ? THP_SPLIT_PAGE : THP_SPLIT_PAGE_FAILED); + count_mthp_stat(order, !ret ? MTHP_STAT_SPLIT : MTHP_STAT_SPLIT_FAILED); return ret; } @@ -3307,6 +3314,7 @@ void deferred_split_folio(struct folio *folio) if (list_empty(&folio->_deferred_list)) { if (folio_test_pmd_mappable(folio)) count_vm_event(THP_DEFERRED_SPLIT_PAGE); + count_mthp_stat(folio_order(folio), MTHP_STAT_SPLIT_DEFERRED); list_add_tail(&folio->_deferred_list, &ds_queue->split_queue); ds_queue->split_queue_len++; #ifdef CONFIG_MEMCG |