From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Johannes Weiner <hannes@cmpxchg.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, cgroups@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [patch] mm: memcg: move pc lookup point to commit_charge()
Date: Thu, 26 Apr 2012 11:02:02 +0900 [thread overview]
Message-ID: <4F98AC9A.2080001@jp.fujitsu.com> (raw)
In-Reply-To: <1335295860-28919-1-git-send-email-hannes@cmpxchg.org>
(2012/04/25 4:31), Johannes Weiner wrote:
> None of the callsites actually need the page_cgroup descriptor
> themselves, so just pass the page and do the look up in there.
>
> We already had two bugs (6568d4a 'mm: memcg: update the correct soft
> limit tree during migration' and 'memcg: fix Bad page state after
> replace_page_cache') where the passed page and pc were not referring
> to the same page frame.
>
> Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
> Acked-by: Hugh Dickins <hughd@google.com>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
> Cc: Michal Hocko <mhocko@suse.cz>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
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prev parent reply other threads:[~2012-04-26 2:03 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-24 19:31 Johannes Weiner
2012-04-24 19:38 ` Johannes Weiner
2012-04-25 8:21 ` Michal Hocko
2012-04-26 2:02 ` KAMEZAWA Hiroyuki [this message]
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