Re: [patch 1/2] mm: vmscan: fix force-scanning small targets without swap

Michal Hocko
2011-08-12T13:10:46Z

On Thu 11-08-11 22:31:54, Johannes Weiner wrote:
> Without swap, anonymous pages are not scanned. As such, they should
> not count when considering force-scanning a small target if there is
> no swap.
>
> Otherwise, targets are not force-scanned even when their effective
> scan number is zero and the other conditions--kswapd/memcg--apply.
>
> Signed-off-by: Johannes Weiner <jweiner@redhat.com>

We are calculating nr_force_scan even if it is not needed but this
shouldn't hurt.

Reviewed-by: Michal Hocko <mhocko@suse.cz>

--
Michal Hocko
SUSE Labs
SUSE LINUX s.r.o.
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Czech Republic