From: Ingo Molnar <mingo@elte.hu>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Linux Containers <containers@lists.osdl.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Mark timer_stats as incompatible with multiple pid namespaces
Date: Thu, 13 Dec 2007 21:26:21 +0100 [thread overview]
Message-ID: <20071213202621.GC25130@elte.hu> (raw)
In-Reply-To: <m1ir32sejc.fsf@ebiederm.dsl.xmission.com>
* Eric W. Biederman <ebiederm@xmission.com> wrote:
> > the problem is, this interface stores historic PIDs too - i.e. PIDs
> > of tasks that might have exited already.
>
> Well struct pid * works in that case if you grab the reference to it.
but the display of the stats might happen much later. The point of this
API is to save pid+comm, which gives users a good idea about what caused
the events in the past - without having to pin any resource of that
task.
> {
> timer->start_site = NULL;
> + pit_pid(timer->start_pid);
> + timer->start_pid = NULL;
s/pit/put, right?
Ingo
next prev parent reply other threads:[~2007-12-13 20:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-12 23:10 [PATCH] Mark timer_stats as incompatible with multiple pid namespaces Eric W. Biederman
2007-12-13 9:01 ` Ingo Molnar
2007-12-13 11:55 ` Eric W. Biederman
2007-12-13 13:04 ` Ingo Molnar
2007-12-13 17:14 ` Eric W. Biederman
2007-12-13 20:26 ` Ingo Molnar [this message]
2007-12-13 21:29 ` Eric W. Biederman
2007-12-13 21:37 ` Ingo Molnar
2007-12-13 21:48 ` Eric W. Biederman
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