Re: [PATCH -mm] slab: document kmalloc_order

[Vladimir Davydov <vdavydov@parallels.com>]

On 04/11/2014 07:57 PM, Christoph Lameter wrote:
> 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

I moved it to slab_common.c in "[PATCH -mm v2.2] mm: get rid of
__GFP_KMEMCG"

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