From: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
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>,
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Subject: Re: [BUGFIX][PATCH 1/4] memcg: fix limit estimation at reclaim for hugepage
Date: Fri, 28 Jan 2011 14:36:54 +0900 [thread overview]
Message-ID: <20110128143654.1aec8f8d.nishimura@mxp.nes.nec.co.jp> (raw)
In-Reply-To: <20110128135839.d53422e8.kamezawa.hiroyu@jp.fujitsu.com>
On Fri, 28 Jan 2011 13:58:39 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> How about this ?
> ==
> From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>
> Current memory cgroup's code tends to assume page_size == PAGE_SIZE
> and arrangement for THP is not enough yet.
>
> This is one of fixes for supporing THP. This adds
> mem_cgroup_check_margin() and checks whether there are required amount of
> free resource after memory reclaim. By this, THP page allocation
> can know whether it really succeeded or not and avoid infinite-loop
> and hangup.
>
> Total fixes for do_charge()/reclaim memory will follow this patch.
>
> Changelog v1->v2:
> - style fix.
>
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Thanks,
Daisuke Nishimura.
WARNING: multiple messages have this Message-ID (diff)
From: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
To: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
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>,
Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Subject: Re: [BUGFIX][PATCH 1/4] memcg: fix limit estimation at reclaim for hugepage
Date: Fri, 28 Jan 2011 14:36:54 +0900 [thread overview]
Message-ID: <20110128143654.1aec8f8d.nishimura@mxp.nes.nec.co.jp> (raw)
In-Reply-To: <20110128135839.d53422e8.kamezawa.hiroyu@jp.fujitsu.com>
On Fri, 28 Jan 2011 13:58:39 +0900
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> wrote:
> How about this ?
> ==
> From: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
>
> Current memory cgroup's code tends to assume page_size == PAGE_SIZE
> and arrangement for THP is not enough yet.
>
> This is one of fixes for supporing THP. This adds
> mem_cgroup_check_margin() and checks whether there are required amount of
> free resource after memory reclaim. By this, THP page allocation
> can know whether it really succeeded or not and avoid infinite-loop
> and hangup.
>
> Total fixes for do_charge()/reclaim memory will follow this patch.
>
> Changelog v1->v2:
> - style fix.
>
> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Thanks,
Daisuke Nishimura.
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next prev parent reply other threads:[~2011-01-28 5:40 UTC|newest]
Thread overview: 66+ 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 3:22 ` KAMEZAWA Hiroyuki
2011-01-28 3:24 ` [BUGFIX][PATCH 1/4] memcg: fix limit estimation at reclaim for hugepage KAMEZAWA Hiroyuki
2011-01-28 3:24 ` KAMEZAWA Hiroyuki
2011-01-28 4:40 ` Daisuke Nishimura
2011-01-28 4:40 ` Daisuke Nishimura
2011-01-28 4:49 ` KAMEZAWA Hiroyuki
2011-01-28 4:49 ` KAMEZAWA Hiroyuki
2011-01-28 4:58 ` KAMEZAWA Hiroyuki
2011-01-28 4:58 ` KAMEZAWA Hiroyuki
2011-01-28 5:36 ` Daisuke Nishimura [this message]
2011-01-28 5:36 ` Daisuke Nishimura
2011-01-28 8:04 ` Minchan Kim
2011-01-28 8:04 ` Minchan Kim
2011-01-28 8:17 ` Johannes Weiner
2011-01-28 8:17 ` Johannes Weiner
2011-01-28 8:25 ` Minchan Kim
2011-01-28 8:25 ` Minchan Kim
2011-01-28 8:36 ` KAMEZAWA Hiroyuki
2011-01-28 8:36 ` KAMEZAWA Hiroyuki
2011-01-30 2:26 ` Minchan Kim
2011-01-30 2:26 ` Minchan Kim
2011-01-28 8:41 ` Johannes Weiner
2011-01-28 8:41 ` Johannes Weiner
2011-01-28 8:24 ` KAMEZAWA Hiroyuki
2011-01-28 8:24 ` KAMEZAWA Hiroyuki
2011-01-28 8:37 ` Minchan Kim
2011-01-28 8:37 ` Minchan Kim
2011-01-28 7:52 ` Johannes Weiner
2011-01-28 7:52 ` Johannes Weiner
2011-01-28 8:06 ` KAMEZAWA Hiroyuki
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 3:26 ` KAMEZAWA Hiroyuki
2011-01-28 5:37 ` Daisuke Nishimura
2011-01-28 5:37 ` Daisuke Nishimura
2011-01-28 7:57 ` Johannes Weiner
2011-01-28 7:57 ` Johannes Weiner
2011-01-28 8:14 ` KAMEZAWA Hiroyuki
2011-01-28 8:14 ` KAMEZAWA Hiroyuki
2011-01-28 9:02 ` Johannes Weiner
2011-01-28 9:02 ` Johannes Weiner
2011-01-28 9:16 ` KAMEZAWA Hiroyuki
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 3:27 ` KAMEZAWA Hiroyuki
2011-01-28 5:39 ` Daisuke Nishimura
2011-01-28 5:39 ` Daisuke Nishimura
2011-01-28 5:50 ` KAMEZAWA Hiroyuki
2011-01-28 5:50 ` KAMEZAWA Hiroyuki
2011-01-28 8:02 ` Johannes Weiner
2011-01-28 8:02 ` Johannes Weiner
2011-01-28 8:21 ` KAMEZAWA Hiroyuki
2011-01-28 8:21 ` KAMEZAWA Hiroyuki
2011-01-31 7:41 ` Balbir Singh
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 3:28 ` KAMEZAWA Hiroyuki
2011-01-28 8:20 ` Daisuke Nishimura
2011-01-28 8:20 ` Daisuke Nishimura
2011-01-28 8:30 ` KAMEZAWA Hiroyuki
2011-01-28 8:30 ` KAMEZAWA Hiroyuki
2011-01-29 12:47 ` [BUGFIX][PATCH 0/4] Fixes for memcg with THP Balbir Singh
2011-01-29 12:47 ` Balbir Singh
2011-01-30 23:55 ` KAMEZAWA Hiroyuki
2011-01-30 23:55 ` KAMEZAWA Hiroyuki
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