diff options
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/mm/slab.c b/mm/slab.c index f477acfb732f..ff0ab772f49d 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -590,6 +590,8 @@ static inline void page_set_cache(struct page *page, struct kmem_cache *cache) static inline struct kmem_cache *page_get_cache(struct page *page) { + if (unlikely(PageCompound(page))) + page = (struct page *)page_private(page); return (struct kmem_cache *)page->lru.next; } @@ -600,6 +602,8 @@ static inline void page_set_slab(struct page *page, struct slab *slab) static inline struct slab *page_get_slab(struct page *page) { + if (unlikely(PageCompound(page))) + page = (struct page *)page_private(page); return (struct slab *)page->lru.prev; } @@ -2412,8 +2416,11 @@ static void set_slab_attr(struct kmem_cache *cachep, struct slab *slabp, struct page *page; /* Nasty!!!!!! I hope this is OK. */ - i = 1 << cachep->gfporder; page = virt_to_page(objp); + + i = 1; + if (likely(!PageCompound(page))) + i <<= cachep->gfporder; do { page_set_cache(page, cachep); page_set_slab(page, slabp); |