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From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
To: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"hannes@cmpxchg.org" <hannes@cmpxchg.org>,
"balbir@linux.vnet.ibm.com" <balbir@linux.vnet.ibm.com>
Subject: Re: [BUGFIX][PATCH 3/4] mecg: fix oom flag at THP charge
Date: Fri, 28 Jan 2011 14:50:35 +0900 [thread overview]
Message-ID: <20110128145035.d20af975.kamezawa.hiroyu@jp.fujitsu.com> (raw)
In-Reply-To: <20110128143912.66f60a22.nishimura@mxp.nes.nec.co.jp>
On Fri, 28 Jan 2011 14:39:12 +0900
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> wrote:
> On Fri, 28 Jan 2011 12:27:29 +0900
> KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
>
> >
> > Thanks to Johanns and Daisuke for suggestion.
> > =
> > Hugepage allocation shouldn't trigger oom.
> > Allocation failure is not fatal.
> >
> > Orignal-patch-by: Johannes Weiner <hannes@cmpxchg.org>
> > Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>
> IIUC, this patch isn't necessary because we don't go into oom
> in "page_size > PAGE_SIZE" case after [2/4].
> But I think it's not so bad to show explicitly that we don't cause oom in
> THP charge.
>
> Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
>
Thank you for clarification.
-Kame
next prev parent reply other threads:[~2011-01-28 5:57 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-28 3:22 [BUGFIX][PATCH 0/4] Fixes for memcg with THP KAMEZAWA Hiroyuki
2011-01-28 3:24 ` [BUGFIX][PATCH 1/4] memcg: fix limit estimation at reclaim for hugepage KAMEZAWA Hiroyuki
2011-01-28 4:40 ` Daisuke Nishimura
2011-01-28 4:49 ` KAMEZAWA Hiroyuki
2011-01-28 4:58 ` KAMEZAWA Hiroyuki
2011-01-28 5:36 ` Daisuke Nishimura
2011-01-28 8:04 ` Minchan Kim
2011-01-28 8:17 ` Johannes Weiner
2011-01-28 8:25 ` Minchan Kim
2011-01-28 8:36 ` KAMEZAWA Hiroyuki
2011-01-30 2:26 ` Minchan Kim
2011-01-28 8:41 ` Johannes Weiner
2011-01-28 8:24 ` KAMEZAWA Hiroyuki
2011-01-28 8:37 ` Minchan Kim
2011-01-28 7:52 ` Johannes Weiner
2011-01-28 8:06 ` KAMEZAWA Hiroyuki
2011-01-28 3:26 ` [BUGFIX][PATCH 2/4] memcg: fix charge path for THP and allow early retirement KAMEZAWA Hiroyuki
2011-01-28 5:37 ` Daisuke Nishimura
2011-01-28 7:57 ` Johannes Weiner
2011-01-28 8:14 ` KAMEZAWA Hiroyuki
2011-01-28 9:02 ` Johannes Weiner
2011-01-28 9:16 ` KAMEZAWA Hiroyuki
2011-01-28 3:27 ` [BUGFIX][PATCH 3/4] mecg: fix oom flag at THP charge KAMEZAWA Hiroyuki
2011-01-28 5:39 ` Daisuke Nishimura
2011-01-28 5:50 ` KAMEZAWA Hiroyuki [this message]
2011-01-28 8:02 ` Johannes Weiner
2011-01-28 8:21 ` KAMEZAWA Hiroyuki
2011-01-31 7:41 ` Balbir Singh
2011-01-28 3:28 ` [BUGFIX][PATCH 4/4] memcg: fix khugepaged should skip busy memcg KAMEZAWA Hiroyuki
2011-01-28 8:20 ` Daisuke Nishimura
2011-01-28 8:30 ` KAMEZAWA Hiroyuki
2011-01-29 12:47 ` [BUGFIX][PATCH 0/4] Fixes for memcg with THP Balbir Singh
2011-01-30 23:55 ` KAMEZAWA Hiroyuki
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