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SubjectRe: [PATCH] mm:vmscan: clean up classzone_idx
On Mon 04-04-16 08:46:25, Minchan Kim wrote:
> [1] removed classzone_idx so we don't need code related to it.
> This patch cleans it up.
>
> [1] mm, oom: rework oom detection

As per http://lkml.kernel.org/r/20160404094213.GB13463@dhcp22.suse.cz
the removal of classzone_idx was unintentional and wrong.

>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: Michal Hocko <mhocko@suse.com>
> Signed-off-by: Minchan Kim <minchan@kernel.org>
> ---
> mm/vmscan.c | 8 --------
> 1 file changed, 8 deletions(-)
>
> diff --git a/mm/vmscan.c b/mm/vmscan.c
> index d84efa03c8a8..6e67de2a61ed 100644
> --- a/mm/vmscan.c
> +++ b/mm/vmscan.c
> @@ -2551,16 +2551,8 @@ static void shrink_zones(struct zonelist *zonelist, struct scan_control *sc)
>
> for_each_zone_zonelist_nodemask(zone, z, zonelist,
> gfp_zone(sc->gfp_mask), sc->nodemask) {
> - enum zone_type classzone_idx;
> -
> if (!populated_zone(zone))
> continue;
> -
> - classzone_idx = requested_highidx;
> - while (!populated_zone(zone->zone_pgdat->node_zones +
> - classzone_idx))
> - classzone_idx--;
> -
> /*
> * Take care memory controller reclaiming has small influence
> * to global LRU.
> --
> 1.9.1
>

--
Michal Hocko
SUSE Labs

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