linux-kernel - Re: [mm] [PATCH 4/4] Memory cgroup hierarchy feature selector

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20081102152412.2af29a1b.kamezawa.hiroyu@jp.fujitsu.com>
Date:	Sun, 2 Nov 2008 15:24:12 +0900
From:	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>
To:	balbir@...ux.vnet.ibm.com
Cc:	linux-mm@...ck.org, YAMAMOTO Takashi <yamamoto@...inux.co.jp>,
	Paul Menage <menage@...gle.com>, lizf@...fujitsu.com,
	linux-kernel@...r.kernel.org,
	Nick Piggin <nickpiggin@...oo.com.au>,
	David Rientjes <rientjes@...gle.com>,
	Pavel Emelianov <xemul@...nvz.org>,
	Dhaval Giani <dhaval@...ux.vnet.ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [mm] [PATCH 4/4] Memory cgroup hierarchy feature selector

On Sun, 02 Nov 2008 11:33:51 +0530
Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:

> KAMEZAWA Hiroyuki wrote:
> > On Sun, 02 Nov 2008 00:19:02 +0530
> > Balbir Singh <balbir@...ux.vnet.ibm.com> wrote:
> > 
> >> Don't enable multiple hierarchy support by default. This patch introduces
> >> a features element that can be set to enable the nested depth hierarchy
> >> feature. This feature can only be enabled when there is just one cgroup
> >> (the root cgroup).
> >>
> > Why the flag is for the whole system ?
> > flag-per-subtree is of no use ?
> 
> Flag per subtree might not be useful, since we charge all the way up to root,
Ah, what I said is "How about enabling/disabling hierarhcy support per subtree ?"
Sorry for bad text.

like this.
  - you can set hierarchy mode of a cgroup turned on/off when...
    * you don't have any tasks under it && it doesn't have any child cgroup.

Thanks,
-Kame

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/