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Date: Sat, 11 Aug 2012 02:07:31 +0900
From: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
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To: Glauber Costa <glommer@parallels.com>
CC: linux-kernel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org,
        devel@openvz.org, Michal Hocko <mhocko@suse.cz>,
        Johannes Weiner <hannes@cmpxchg.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Christoph Lameter <cl@linux.com>, David Rientjes <rientjes@google.com>,
        Pekka Enberg <penberg@kernel.org>,
        Pekka Enberg <penberg@cs.helsinki.fi>,
        Suleiman Souhlal <suleiman@google.com>, Rik van Riel <riel@redhat.com>,
        Mel Gorman <mel@csn.ul.ie>
Subject: Re: [PATCH v2 05/11] Add a __GFP_KMEMCG flag
References: <1344517279-30646-1-git-send-email-glommer@parallels.com> <1344517279-30646-6-git-send-email-glommer@parallels.com>
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(2012/08/09 22:01), Glauber Costa wrote:
> This flag is used to indicate to the callees that this allocation is a
> kernel allocation in process context, and should be accounted to
> current's memcg. It takes numerical place of the of the recently removed
> __GFP_NO_KSWAPD.
> 
> Signed-off-by: Glauber Costa <glommer@parallels.com>
> CC: Christoph Lameter <cl@linux.com>
> CC: Pekka Enberg <penberg@cs.helsinki.fi>
> CC: Michal Hocko <mhocko@suse.cz>
> CC: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> CC: Johannes Weiner <hannes@cmpxchg.org>
> CC: Suleiman Souhlal <suleiman@google.com>
> CC: Rik van Riel <riel@redhat.com>
> CC: Mel Gorman <mel@csn.ul.ie>

Okay, so, only memcg-aware allocations are accounted.
It seems a safe way to go.

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


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