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slub: kmalloc page allocator pass-through cleanup

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This adds a proper function for kmalloc page allocator pass-through. While it
simplifies any code that does slab tracing code a lot, I think it's a
worthwhile cleanup in itself.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
This commit is contained in:
Pekka Enberg 2008-02-11 22:47:46 +02:00 • committed by Christoph Lameter
commit eada35efcb
2 changed files with 12 additions and 10 deletions
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8
include/linux/slub_def.h
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@ -188,12 +188,16 @@ static __always_inline struct kmem_cache *kmalloc_slab(size_t size)
void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
void *__kmalloc(size_t size, gfp_t flags);
static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
{
return (void *)__get_free_pages(flags | __GFP_COMP, get_order(size));
}
static __always_inline void *kmalloc(size_t size, gfp_t flags)
{
if (__builtin_constant_p(size)) {
if (size > PAGE_SIZE / 2)
return (void *)__get_free_pages(flags | __GFP_COMP,
get_order(size));
return kmalloc_large(size, flags);
if (!(flags & SLUB_DMA)) {
struct kmem_cache *s = kmalloc_slab(size);