diff options
Diffstat (limited to 'mm/huge_memory.c')
| -rw-r--r-- | mm/huge_memory.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 9afca0122723..beebe4105659 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2465,30 +2465,6 @@ static void __split_huge_page(struct page *page, struct list_head *list, } } -int total_mapcount(struct page *page) -{ - int i, compound, nr, ret; - - VM_BUG_ON_PAGE(PageTail(page), page); - - if (likely(!PageCompound(page))) - return atomic_read(&page->_mapcount) + 1; - - compound = compound_mapcount(page); - nr = compound_nr(page); - if (PageHuge(page)) - return compound; - ret = compound; - for (i = 0; i < nr; i++) - ret += atomic_read(&page[i]._mapcount) + 1; - /* File pages has compound_mapcount included in _mapcount */ - if (!PageAnon(page)) - return ret - compound * nr; - if (PageDoubleMap(page)) - ret -= nr; - return ret; -} - /* * This calculates accurately how many mappings a transparent hugepage * has (unlike page_mapcount() which isn't fully accurate). This full |