Re: [PATCH 14/30] memblock: add align parameter to memblock_alloc_node()

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On Fri 14-09-18 15:10:29, Mike Rapoport wrote:
> With the align parameter memblock_alloc_node() can be used as drop in
> replacement for alloc_bootmem_pages_node() and __alloc_bootmem_node(),
> which is done in the following patches.

/me confused. Why do we need this patch at all? Maybe it should be
folded into the later patch you are refereing here?

> Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxxxxxxxxxx>
> ---
>  include/linux/bootmem.h | 4 ++--
>  mm/sparse.c             | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
> index 7d91f0f..3896af2 100644
> --- a/include/linux/bootmem.h
> +++ b/include/linux/bootmem.h
> @@ -157,9 +157,9 @@ static inline void * __init memblock_alloc_from_nopanic(
>  }
>  
>  static inline void * __init memblock_alloc_node(
> -						phys_addr_t size, int nid)
> +		phys_addr_t size, phys_addr_t align, int nid)
>  {
> -	return memblock_alloc_try_nid(size, 0, BOOTMEM_LOW_LIMIT,
> +	return memblock_alloc_try_nid(size, align, BOOTMEM_LOW_LIMIT,
>  					    BOOTMEM_ALLOC_ACCESSIBLE, nid);
>  }
>  
> diff --git a/mm/sparse.c b/mm/sparse.c
> index 04e97af..509828f 100644
> --- a/mm/sparse.c
> +++ b/mm/sparse.c
> @@ -68,7 +68,7 @@ static noinline struct mem_section __ref *sparse_index_alloc(int nid)
>  	if (slab_is_available())
>  		section = kzalloc_node(array_size, GFP_KERNEL, nid);
>  	else
> -		section = memblock_alloc_node(array_size, nid);
> +		section = memblock_alloc_node(array_size, 0, nid);
>  
>  	return section;
>  }
> -- 
> 2.7.4
> 

-- 
Michal Hocko
SUSE Labs



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