struct page *page = c->page;
int tail = 1;
- if (c->freelist)
+ if (page->freelist)
stat(c, DEACTIVATE_REMOTE_FREES);
/*
* Merge cpu freelist into slab freelist. Typically we get here
void **object;
struct page *new;
+ /* We handle __GFP_ZERO in the caller */
+ gfpflags &= ~__GFP_ZERO;
+
if (!c->page)
goto new_slab;
* 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))
- return kmalloc_large(s->objsize, gfpflags);
-
+ 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))
* The hardware cache alignment cannot override the specified
* alignment though. If that is greater then use it.
*/
- if ((flags & SLAB_HWCACHE_ALIGN) &&
- size > cache_line_size() / 2)
- return max_t(unsigned long, align, cache_line_size());
+ if (flags & SLAB_HWCACHE_ALIGN) {
+ unsigned long ralign = cache_line_size();
+ while (size <= ralign / 2)
+ ralign /= 2;
+ align = max(align, ralign);
+ }
if (align < ARCH_SLAB_MINALIGN)
- return ARCH_SLAB_MINALIGN;
+ align = ARCH_SLAB_MINALIGN;
return ALIGN(align, sizeof(void *));
}
c->node = 0;
c->offset = s->offset / sizeof(void *);
c->objsize = s->objsize;
+#ifdef CONFIG_SLUB_STATS
+ memset(c->stat, 0, NR_SLUB_STAT_ITEMS * sizeof(unsigned));
+#endif
}
static void init_kmem_cache_node(struct kmem_cache_node *n)
struct kmem_cache kmalloc_caches[PAGE_SHIFT + 1] __cacheline_aligned;
EXPORT_SYMBOL(kmalloc_caches);
-#ifdef CONFIG_ZONE_DMA
-static struct kmem_cache *kmalloc_caches_dma[PAGE_SHIFT + 1];
-#endif
-
static int __init setup_slub_min_order(char *str)
{
get_option(&str, &slub_min_order);
}
#ifdef CONFIG_ZONE_DMA
+static struct kmem_cache *kmalloc_caches_dma[PAGE_SHIFT + 1];
static void sysfs_add_func(struct work_struct *w)
{
}
EXPORT_SYMBOL(kfree);
-static unsigned long count_partial(struct kmem_cache_node *n)
-{
- unsigned long flags;
- unsigned long x = 0;
- struct page *page;
-
- spin_lock_irqsave(&n->list_lock, flags);
- list_for_each_entry(page, &n->partial, lru)
- x += page->inuse;
- spin_unlock_irqrestore(&n->list_lock, flags);
- return x;
-}
-
/*
* kmem_cache_shrink removes empty slabs from the partial lists and sorts
* the remaining slabs by the number of items in use. The slabs with the
return slab_alloc(s, gfpflags, node, caller);
}
+#if (defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG)) || defined(CONFIG_SLABINFO)
+static unsigned long count_partial(struct kmem_cache_node *n)
+{
+ unsigned long flags;
+ unsigned long x = 0;
+ struct page *page;
+
+ spin_lock_irqsave(&n->list_lock, flags);
+ list_for_each_entry(page, &n->partial, lru)
+ x += page->inuse;
+ spin_unlock_irqrestore(&n->list_lock, flags);
+ return x;
+}
+#endif
+
#if defined(CONFIG_SYSFS) && defined(CONFIG_SLUB_DEBUG)
static int validate_slab(struct kmem_cache *s, struct page *page,
unsigned long *map)