From mboxrd@z Thu Jan  1 00:00:00 1970
From: ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org (Eric W. Biederman)
Subject: Re: [RFC PATCH v2 0/3] perf/tracefs: Container-aware tracing support
Date: Wed, 03 Aug 2016 21:59:02 -0500
Message-ID: <87twf1ck95.fsf@x220.int.ebiederm.org>
References: <146965470618.23765.7329786743211962695.stgit@hbathini.in.ibm.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
In-Reply-To: <146965470618.23765.7329786743211962695.stgit-2ivJzYymj6EA+286u2LMdEEOCMrvLtNR@public.gmane.org>
	(Hari Bathini's message of "Thu, 28 Jul 2016 02:57:16 +0530")
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/containers>,
	<mailto:containers-request-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/containers/>
List-Post: <mailto:containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>
List-Help: <mailto:containers-request-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/containers>,
	<mailto:containers-request-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org?subject=subscribe>
Sender: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
Errors-To: containers-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org
To: Hari Bathini <hbathini-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>
Cc: ananth-xthvdsQ13ZrQT0dZR+AlfA@public.gmane.org, daniel-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org, Linux Containers <containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, acme-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, alexander.shishkin-VuQAYsv1563Yd54FQh9/CA@public.gmane.org, mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, paulus-eUNUBHrolfbYtjvyW6yDsg@public.gmane.org, rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org, aravinda-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org, kernel-6AxghH7DbtA@public.gmane.org, viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org
List-Id: containers.vger.kernel.org

Hari Bathini <hbathini-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org> writes:

> This RFC patch set supports filtering container specific events
> when perf tool is executed inside a container. The patches apply
> cleanly on v4.7.0-rc7
>
> Changes from v1:
> 1/3. Revived earlier approach[1] with cgroup namespace instead
>      of pid namespace
> 2/3. New patch that adds instance support for uprobe events in
>      tracefs filesystem
> 3/3. New patch that adds "newinstance" mount option for tracefs
>      filesystem
       "newinstace" ick no.

I see no justification anywhere why the perf cgroup is not enough for
this.

Eric