* The allocator synchronizes using per slab locks and only
* uses a centralized lock to manage a pool of partial slabs.
*
- * (C) 2007 SGI, Christoph Lameter <clameter@sgi.com>
+ * (C) 2007 SGI, Christoph Lameter
*/
#include <linux/mm.h>
page = virt_to_head_page(object);
- if (unlikely(!PageSlab(page)))
+ if (unlikely(!PageSlab(page))) {
+ WARN_ON(!PageCompound(page));
return PAGE_SIZE << compound_order(page);
-
+ }
s = page->slab;
#ifdef CONFIG_SLUB_DEBUG
create_kmalloc_cache(&kmalloc_caches[1],
"kmalloc-96", 96, GFP_KERNEL);
caches++;
- }
- if (KMALLOC_MIN_SIZE <= 128) {
create_kmalloc_cache(&kmalloc_caches[2],
"kmalloc-192", 192, GFP_KERNEL);
caches++;
for (i = 8; i < KMALLOC_MIN_SIZE; i += 8)
size_index[(i - 1) / 8] = KMALLOC_SHIFT_LOW;
+ if (KMALLOC_MIN_SIZE == 128) {
+ /*
+ * The 192 byte sized cache is not used if the alignment
+ * is 128 byte. Redirect kmalloc to use the 256 byte cache
+ * instead.
+ */
+ for (i = 128 + 8; i <= 192; i += 8)
+ size_index[(i - 1) / 8] = 8;
+ }
+
slab_state = UP;
/* Provide the correct kmalloc names now that the caches are up */
if (!n)
continue;
- if (atomic_read(&n->total_objects))
+ if (atomic_long_read(&n->total_objects))
return 1;
}
return 0;