> How about something like this?
> 
>   :
> usage = swap_cgroup_read_usage(mem);	//no need to align to number of page
> limit = swap_cgroup_read_limit(mem);	//no need to align to number of page
> ret = (usage * 2 > limit) || (nr_swap_pages * 2 < total_swap_pages)
>   :

it seems reasonable to me.

YAMAMOTO Takashi
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