diff options
Diffstat (limited to 'mm/swap.c')
| -rw-r--r-- | mm/swap.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/mm/swap.c b/mm/swap.c index 18505990c3b1..bf9a79fed62d 100644 --- a/mm/swap.c +++ b/mm/swap.c @@ -1004,6 +1004,10 @@ void __pagevec_lru_add(struct pagevec *pvec) * ascending indexes. There may be holes in the indices due to * not-present entries. * + * Only one subpage of a Transparent Huge Page is returned in one call: + * allowing truncate_inode_pages_range() to evict the whole THP without + * cycling through a pagevec of extra references. + * * pagevec_lookup_entries() returns the number of entries which were * found. */ |