diff options
| -rw-r--r-- | mm/slub.c | 43 |
1 files changed, 2 insertions, 41 deletions
diff --git a/mm/slub.c b/mm/slub.c index 35c22d940ba..de6f38761d1 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -204,8 +204,6 @@ static inline void ClearSlabDebug(struct page *page) /* Internal SLUB flags */ #define __OBJECT_POISON 0x80000000 /* Poison object */ #define __SYSFS_ADD_DEFERRED 0x40000000 /* Not yet visible via sysfs */ -#define __KMALLOC_CACHE 0x20000000 /* objects freed using kfree */ -#define __PAGE_ALLOC_FALLBACK 0x10000000 /* Allow fallback to page alloc */ /* Not all arches define cache_line_size */ #ifndef cache_line_size @@ -1623,27 +1621,6 @@ new_slab: c->page = new; goto load_freelist; } - - /* - * No memory available. - * - * If the slab uses higher order allocs but the object is - * smaller than a page size then we can fallback in emergencies - * to the page allocator via kmalloc_large. The page allocator may - * have failed to obtain a higher order page and we can try to - * allocate a single page if the object fits into a single page. - * That is only possible if certain conditions are met that are being - * checked when a slab is created. - */ - if (!(gfpflags & __GFP_NORETRY) && - (s->flags & __PAGE_ALLOC_FALLBACK)) { - if (gfpflags & __GFP_WAIT) - local_irq_enable(); - object = kmalloc_large(s->objsize, gfpflags); - if (gfpflags & __GFP_WAIT) - local_irq_disable(); - return object; - } return NULL; debug: if (!alloc_debug_processing(s, c->page, object, addr)) @@ -2330,20 +2307,7 @@ static int calculate_sizes(struct kmem_cache *s) */ size = ALIGN(size, align); s->size = size; - - if ((flags & __KMALLOC_CACHE) && - PAGE_SIZE / size < slub_min_objects) { - /* - * Kmalloc cache that would not have enough objects in - * an order 0 page. Kmalloc slabs can fallback to - * page allocator order 0 allocs so take a reasonably large - * order that will allows us a good number of objects. - */ - order = max(slub_max_order, PAGE_ALLOC_COSTLY_ORDER); - s->flags |= __PAGE_ALLOC_FALLBACK; - s->allocflags |= __GFP_NOWARN; - } else - order = calculate_order(size); + order = calculate_order(size); if (order < 0) return 0; @@ -2589,7 +2553,7 @@ static struct kmem_cache *create_kmalloc_cache(struct kmem_cache *s, down_write(&slub_lock); if (!kmem_cache_open(s, gfp_flags, name, size, ARCH_KMALLOC_MINALIGN, - flags | __KMALLOC_CACHE, NULL)) + flags, NULL)) goto panic; list_add(&s->list, &slab_caches); @@ -3105,9 +3069,6 @@ static int slab_unmergeable(struct kmem_cache *s) if (slub_nomerge || (s->flags & SLUB_NEVER_MERGE)) return 1; - if ((s->flags & __PAGE_ALLOC_FALLBACK)) - return 1; - if (s->ctor) return 1; |