Re: [patch] memcg: charged pages always have valid per-memcg zoneinfo

[KAMEZAWA Hiroyuki]

On Wed,  9 Feb 2011 11:44:35 +0100
Johannes Weiner <hannes@xxxxxxxxxxx> wrote:

> page_cgroup_zoneinfo() will never return NULL for a charged page,
> remove the check for it in mem_cgroup_get_reclaim_stat_from_page().
> 
> Signed-off-by: Johannes Weiner <hannes@xxxxxxxxxxx>

IIUC, this _was_ required when force_empty() had troubles.
But now, not required.

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

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