diff options
Diffstat (limited to 'mm/swapfile.c')
| -rw-r--r-- | mm/swapfile.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/swapfile.c b/mm/swapfile.c index efe26bb10adb..31dc94fb0f60 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -926,6 +926,9 @@ int reuse_swap_page(struct page *page) VM_BUG_ON_PAGE(!PageLocked(page), page); if (unlikely(PageKsm(page))) return 0; + /* The page is part of THP and cannot be reused */ + if (PageTransCompound(page)) + return 0; count = page_mapcount(page); if (count <= 1 && PageSwapCache(page)) { count += page_swapcount(page); |