Re: [patch 2/2] mm: vmscan: drop nr_force_scan[] from get_scan_count

KAMEZAWA Hiroyuki
2011-08-17T01:20:16Z

On Thu, 11 Aug 2011 22:31:55 +0200
Johannes Weiner <jweiner@redhat.com> wrote:

> The nr_force_scan[] tuple holds the effective scan numbers for anon
> and file pages in case the situation called for a forced scan and the
> regularly calculated scan numbers turned out zero.
>
> However, the effective scan number can always be assumed to be
> SWAP_CLUSTER_MAX right before the division into anon and file. The
> numerators and denominator are properly set up for all cases, be it
> force scan for just file, just anon, or both, to do the right thing.
>
> Signed-off-by: Johannes Weiner <jweiner@redhat.com>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> Cc: Michal Hocko <mhocko@suse.cz>
> Cc: Ying Han <yinghan@google.com>
> Cc: Balbir Singh <bsingharora@gmail.com>
> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
> Cc: Mel Gorman <mel@csn.ul.ie>

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>