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From: Andrew Morton <akpm@linux-foundation.org>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Paul Menage <paul@paulmenage.org>, Li Zefan <lizf@cn.fujitsu.com>,
	Johannes Weiner <hannes@cmpxchg.org>,
	Aditya Kali <adityakali@google.com>,
	Oleg Nesterov <oleg@redhat.com>,
	Kay Sievers <kay.sievers@vrfy.org>,
	Tim Hockin <thockin@hockin.org>, Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH 06/12] cgroups: Add res counter common ancestor searching
Date: Tue, 6 Sep 2011 15:21:29 -0700	[thread overview]
Message-ID: <20110906152129.c6136981.akpm@linux-foundation.org> (raw)
In-Reply-To: <1315267986-28937-7-git-send-email-fweisbec@gmail.com>

On Tue,  6 Sep 2011 02:13:00 +0200
Frederic Weisbecker <fweisbec@gmail.com> wrote:

> +struct res_counter *
> +res_counter_common_ancestor(struct res_counter *r1, struct res_counter *r2)
> +{
> +	struct res_counter *iter;
> +
> +	while (r1) {
> +		iter = r2;
> +		while (iter) {
> +			if (iter == r1)
> +				return iter;
> +			iter = iter->parent;
> +		}
> +
> +		r1 = r1->parent;
> +	}
> +
> +	return NULL;
> +}

cgroup_mutex, one assumes?

  reply	other threads:[~2011-09-06 22:22 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-06  0:12 [PATCH 00/12 v4][RESEND] cgroups: Task counter subsystem Frederic Weisbecker
2011-09-06  0:12 ` [PATCH 01/12] cgroups: Add res_counter_write_u64() API Frederic Weisbecker
2011-09-06  0:12 ` [PATCH 02/12] cgroups: New resource counter inheritance API Frederic Weisbecker
2011-09-06 22:17   ` Andrew Morton
2011-09-08 13:25     ` Frederic Weisbecker
2011-09-06  0:12 ` [PATCH 03/12] cgroups: Add previous cgroup in can_attach_task/attach_task callbacks Frederic Weisbecker
2011-09-06  0:12 ` [PATCH 04/12] cgroups: New cancel_attach_task subsystem callback Frederic Weisbecker
2011-09-06  0:12 ` [PATCH 05/12] cgroups: Ability to stop res charge propagation on bounded ancestor Frederic Weisbecker
2011-09-06  0:13 ` [PATCH 06/12] cgroups: Add res counter common ancestor searching Frederic Weisbecker
2011-09-06 22:21   ` Andrew Morton [this message]
2011-09-09 12:31     ` Frederic Weisbecker
2011-09-06  0:13 ` [PATCH 07/12] res_counter: Allow charge failure pointer to be null Frederic Weisbecker
2011-09-06  0:13 ` [PATCH 08/12] cgroups: Pull up res counter charge failure interpretation to caller Frederic Weisbecker
2011-09-06 22:26   ` Andrew Morton
2011-09-09 13:33     ` Frederic Weisbecker
2011-09-09 15:17       ` Andrew Morton
2011-09-06  0:13 ` [PATCH 09/12] cgroups: Add a task counter subsystem Frederic Weisbecker
2011-09-06 22:40   ` Andrew Morton
2011-09-13 15:13     ` Frederic Weisbecker
2011-09-06  0:13 ` [PATCH 10/12] cgroups: Add documentation for " Frederic Weisbecker
2011-09-06 22:41   ` Andrew Morton
2011-09-13 17:35     ` Frederic Weisbecker
2011-09-06  0:13 ` [RFC PATCH 11/12] cgroups: Allow subsystems to cancel a fork Frederic Weisbecker
2011-09-15 21:09   ` Andrew Morton
2011-10-01 15:29     ` Frederic Weisbecker
2011-09-06  0:13 ` [RFC PATCH 12/12] cgroups: Convert task counter to use the subsys fork callback Frederic Weisbecker

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