Re: [PATCH 2/2] mm: Fix documentation of min_unmapped_ratio

[KOSAKI Motohiro]

> -A percentage of the total pages in each zone.  Zone reclaim will only
> -occur if more than this percentage of pages are file backed and unmapped.
> -This is to insure that a minimal amount of local pages is still available for
> -file I/O even if the node is overallocated.
> +This is a percentage of the total pages in each zone. Zone reclaim will
> +only occur if more than this percentage of pages are in a state that
> +zone_reclaim_mode allows to be reclaimed.
> +
> +If zone_reclaim_mode has the value 4 OR'd, then the percentage is compared
> +against all file-backed unmapped pages including swapcache pages and tmpfs
> +files. Otherwise, only unmapped pages backed by normal files but not tmpfs
> +files and similar are considered.
>  
>  The default is 1 percent.

looks good.



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