diff options
Diffstat (limited to 'include/linux/mm_types.h')
| -rw-r--r-- | include/linux/mm_types.h | 17 |
1 files changed, 3 insertions, 14 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index 6bc9a0ce2253..faf6fe88d6b3 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -81,20 +81,9 @@ struct page { union { /* - * Count of ptes mapped in - * mms, to show when page is - * mapped & limit reverse map - * searches. - * - * Used also for tail pages - * refcounting instead of - * _count. Tail pages cannot - * be mapped and keeping the - * tail page _count zero at - * all times guarantees - * get_page_unless_zero() will - * never succeed on tail - * pages. + * Count of ptes mapped in mms, to show + * when page is mapped & limit reverse + * map searches. */ atomic_t _mapcount; |