diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/shmem.c | 10 | ||||
| -rw-r--r-- | mm/vmstat.c | 1 |
2 files changed, 7 insertions, 4 deletions
diff --git a/mm/shmem.c b/mm/shmem.c index f47347cb30f6..8160d0762bf5 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1472,9 +1472,6 @@ static struct page *shmem_alloc_hugepage(gfp_t gfp, pgoff_t hindex; struct page *page; - if (!IS_ENABLED(CONFIG_TRANSPARENT_HUGE_PAGECACHE)) - return NULL; - hindex = round_down(index, HPAGE_PMD_NR); if (xa_find(&mapping->i_pages, &hindex, hindex + HPAGE_PMD_NR - 1, XA_PRESENT)) @@ -1486,6 +1483,8 @@ static struct page *shmem_alloc_hugepage(gfp_t gfp, shmem_pseudo_vma_destroy(&pvma); if (page) prep_transhuge_page(page); + else + count_vm_event(THP_FILE_FALLBACK); return page; } @@ -1871,8 +1870,11 @@ alloc_nohuge: error = mem_cgroup_try_charge_delay(page, charge_mm, gfp, &memcg, PageTransHuge(page)); - if (error) + if (error) { + if (PageTransHuge(page)) + count_vm_event(THP_FILE_FALLBACK); goto unacct; + } error = shmem_add_to_page_cache(page, mapping, hindex, NULL, gfp & GFP_RECLAIM_MASK); if (error) { diff --git a/mm/vmstat.c b/mm/vmstat.c index c9c0d71f917f..ebc1dcaa0539 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1259,6 +1259,7 @@ const char * const vmstat_text[] = { "thp_collapse_alloc", "thp_collapse_alloc_failed", "thp_file_alloc", + "thp_file_fallback", "thp_file_mapped", "thp_split_page", "thp_split_page_failed", |