aboutsummaryrefslogtreecommitdiffstats
path: root/mm/slub.c
diff options
context:
space:
mode:
Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/mm/slub.c b/mm/slub.c
index b49570ca08b..09b5dc82df5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2610,19 +2610,17 @@ size_t ksize(const void *object)
2610 struct page *page; 2610 struct page *page;
2611 struct kmem_cache *s; 2611 struct kmem_cache *s;
2612 2612
2613 BUG_ON(!object);
2614 if (unlikely(object == ZERO_SIZE_PTR)) 2613 if (unlikely(object == ZERO_SIZE_PTR))
2615 return 0; 2614 return 0;
2616 2615
2617 page = virt_to_head_page(object); 2616 page = virt_to_head_page(object);
2618 BUG_ON(!page);
2619 2617
2620 if (unlikely(!PageSlab(page))) 2618 if (unlikely(!PageSlab(page)))
2621 return PAGE_SIZE << compound_order(page); 2619 return PAGE_SIZE << compound_order(page);
2622 2620
2623 s = page->slab; 2621 s = page->slab;
2624 BUG_ON(!s);
2625 2622
2623#ifdef CONFIG_SLUB_DEBUG
2626 /* 2624 /*
2627 * Debugging requires use of the padding between object 2625 * Debugging requires use of the padding between object
2628 * and whatever may come after it. 2626 * and whatever may come after it.
@@ -2630,6 +2628,7 @@ size_t ksize(const void *object)
2630 if (s->flags & (SLAB_RED_ZONE | SLAB_POISON)) 2628 if (s->flags & (SLAB_RED_ZONE | SLAB_POISON))
2631 return s->objsize; 2629 return s->objsize;
2632 2630
2631#endif
2633 /* 2632 /*
2634 * If we have the need to store the freelist pointer 2633 * If we have the need to store the freelist pointer
2635 * back there or track user information then we can 2634 * back there or track user information then we can
@@ -2637,7 +2636,6 @@ size_t ksize(const void *object)
2637 */ 2636 */
2638 if (s->flags & (SLAB_DESTROY_BY_RCU | SLAB_STORE_USER)) 2637 if (s->flags & (SLAB_DESTROY_BY_RCU | SLAB_STORE_USER))
2639 return s->inuse; 2638 return s->inuse;
2640
2641 /* 2639 /*
2642 * Else we can use all the padding etc for the allocation 2640 * Else we can use all the padding etc for the allocation
2643 */ 2641 */