Re: [PATCH] x86_64: Make the NUMA hash function nodemap allocation dynamic and remove NODEMAPSIZE

> Therefore I suggest to use a structure like that :
> 
> struct memnode {
>  	int shift;
> 	unsigned int mapsize; /* no need to use 8 bytes here */
> 	u8 *map;
> 	u8 embedded_map[64-8]; /* total size = 64 bytes */
>  } ____cacheline_aligned;
> 
> and make memnode.map point to memnode.embedded_map if mapsize <= 56 ?

That's a good idea yes.

-Andi
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References:
- [PATCH] x86_64: Make the NUMA hash function nodemap allocation dynamic and remove NODEMAPSIZE
  - From: Amul Shah <[email protected]>
- Re: [PATCH] x86_64: Make the NUMA hash function nodemap allocation dynamic and remove NODEMAPSIZE
  - From: Andi Kleen <[email protected]>
- Re: [PATCH] x86_64: Make the NUMA hash function nodemap allocation dynamic and remove NODEMAPSIZE
  - From: Eric Dumazet <[email protected]>

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