Re: [PATCHv2 0/4] zsmalloc: make zspage chain size configurable

[Sergey Senozhatsky]

On (23/01/14 13:34), Mike Kravetz wrote:
> I did the following:
> 
> - Start with clean v6.2-rc3
>   Perform echo, did not see issue
> 
> - Applied your 5 patches (includes the zsmalloc: turn chain size config option
>   into UL constant patch).  Took default value for ZSMALLOC_CHAIN_SIZE of 8.
>   Performed echo, recreated issue.
> 
> - Changed ZSMALLOC_CHAIN_SIZE to 1.
>   Perform echo, did not see issue

The patch set basically just adjusts $NUM in calculate_zspage_chain_size():

		for (i = 1; i <= $NUM; i++)

It changes default 4 to 8. Can't really see how this can cause problems.