From: Peter Zijlstra <peterz@infradead.org>
To: Paul Menage <menage@google.com>
Cc: balbir@linux.vnet.ibm.com, eranian@google.com,
linux-kernel@vger.kernel.org, mingo@elte.hu, paulus@samba.org,
davem@davemloft.net, fweisbec@gmail.com,
perfmon2-devel@lists.sf.net, eranian@gmail.com,
robert.richter@amd.com, acme@redhat.com, lizf@cn.fujitsu.com
Subject: Re: [PATCH 1/2] perf_events: add cgroup support (v8)
Date: Mon, 07 Feb 2011 21:09:22 +0100 [thread overview]
Message-ID: <1297109362.13327.56.camel@laptop> (raw)
In-Reply-To: <AANLkTi=+W-BXHFG94MeOnqV82HxtqtyDwEt1RCOUMrcq@mail.gmail.com>
On Mon, 2011-02-07 at 11:29 -0800, Paul Menage wrote:
> > This again means that all such notification handlers must poll state,
> > which is ridiculous.
> >
>
> Not necessarily - we could make it that a failed rmdir() sets a bit
> that causes a notification again once the final refcount is dropped
> again on the cgroup.
But that doesn't work if you fail for any other reason than a refcount,
which you yourself proposed a while back.
Also, the core cgroup code should deal with the cgroup refcount, not
individual controllers.
next prev parent reply other threads:[~2011-02-07 20:08 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-20 13:30 [PATCH 1/2] perf_events: add cgroup support (v8) Stephane Eranian
2011-01-20 14:39 ` Peter Zijlstra
2011-01-20 14:46 ` Stephane Eranian
2011-02-02 11:29 ` Peter Zijlstra
2011-02-02 11:50 ` Balbir Singh
2011-02-02 12:46 ` Peter Zijlstra
2011-02-02 19:02 ` Balbir Singh
2011-02-07 16:10 ` [RFC][PATCH] cgroup: Fix cgroup_subsys::exit callback Peter Zijlstra
2011-02-07 19:28 ` Paul Menage
2011-02-07 20:02 ` Peter Zijlstra
2011-02-07 21:21 ` Paul Menage
2011-02-08 10:24 ` Peter Zijlstra
2011-02-10 2:04 ` Li Zefan
2011-02-11 12:13 ` Peter Zijlstra
2011-02-14 4:32 ` Paul Menage
2011-02-16 13:46 ` [tip:perf/core] " tip-bot for Peter Zijlstra
2011-02-13 12:52 ` [RFC][PATCH] " Balbir Singh
2011-02-07 19:29 ` [PATCH 1/2] perf_events: add cgroup support (v8) Paul Menage
2011-02-07 20:09 ` Peter Zijlstra [this message]
2011-02-07 21:33 ` Paul Menage
2011-02-07 16:10 ` Peter Zijlstra
2011-02-07 20:30 ` Stephane Eranian
2011-02-08 22:31 ` Stephane Eranian
2011-02-09 9:47 ` Peter Zijlstra
2011-02-10 11:47 ` Stephane Eranian
2011-02-11 0:55 ` Li Zefan
2011-02-11 9:56 ` Stephane Eranian
2011-02-11 13:36 ` Stephane Eranian
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