diff options
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index c68771c27d88..5cef04a2623e 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -232,11 +232,15 @@ static inline void get_page(struct page *page) static inline void put_page(struct page *page) { if (PageCompound(page)) { - page = (struct page *)page->lru.next; - if (page->lru.prev) { /* destructor? */ - (*(void (*)(struct page *))page->lru.prev)(page); - return; + if (put_page_testzero(page)) { + page = (struct page *)page->lru.next; + if (page->lru.prev) { /* destructor? */ + (*(void (*)(struct page *))page->lru.prev)(page); + } else { + __page_cache_release(page); + } } + return; } if (!PageReserved(page) && put_page_testzero(page)) __page_cache_release(page); |