From: Oleg Nesterov <oleg@redhat.com>
To: "zhangwei(Jovi)" <jovi.zhangwei@huawei.com>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Ingo Molnar <mingo@redhat.com>,
Srikar Dronamraju <srikar@linux.vnet.ibm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] tracing/uprobes: Support ftrace_event_file base multibuffer
Date: Mon, 24 Jun 2013 20:53:01 +0200 [thread overview]
Message-ID: <20130624185301.GA5350@redhat.com> (raw)
In-Reply-To: <20130624180547.GA2794@redhat.com>
forgot to mention,
On 06/24, Oleg Nesterov wrote:
>
> > + /*
> > + * Currently TP_FLAG_TRACE/TP_FLAG_PROFILE are mutually exclusive
> > + * for uprobe(filter argument issue), this need to fix in future.
^^^^^^^^^^^^^^^^^^^^^
Just in case, this is not that simple.
For example, suppose that TRACE_REG_REGISTER comes after
TRACE_REG_PERF_REGISTER. In this case we need uprobe_perf_open-like
code to establish nr_systemwide != 0 and do uprobe_apply() if
necessary.
Oleg.
next prev parent reply other threads:[~2013-06-24 18:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-24 6:54 [PATCH v2] tracing/uprobes: Support ftrace_event_file base multibuffer zhangwei(Jovi)
2013-06-24 11:49 ` Masami Hiramatsu
2013-06-24 18:05 ` Oleg Nesterov
2013-06-24 18:53 ` Oleg Nesterov [this message]
2013-06-25 3:24 ` zhangwei(Jovi)
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