On Fri, 11 Apr 2014, Vladimir Davydov wrote:
> diff --git a/mm/slab_common.c b/mm/slab_common.c
> index cab4c49b3e8c..3ffd2e76b5d2 100644
> --- a/mm/slab_common.c
> +++ b/mm/slab_common.c
> @@ -573,6 +573,11 @@ void __init create_kmalloc_caches(unsigned long flags)
> }
> #endif /* !CONFIG_SLOB */
>
> +/*
> + * To avoid unnecessary overhead, we pass through large allocation requests
> + * directly to the page allocator. We use __GFP_COMP, because we will need to
> + * know the allocation order to free the pages properly in kfree.
> + */
> void *kmalloc_order(size_t size, gfp_t flags, unsigned int order)
> {
> void *ret;
>
??? kmalloc_order is defined in include/linux/slab.h
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