Re: [PATCH 05/11] memcg: add null check to page_cgroup_zoneinfo()

From: Rik van Riel
Date: Mon Dec 01 2008 - 09:53:21 EST

KOSAKI Motohiro wrote:
if CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y, page_cgroup::mem_cgroup can be NULL.
Therefore null checking is better.

latter patch use this function.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>

Acked-by: Rik van Riel <riel@xxxxxxxxxx>

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