From: Ingo Molnar <mingo@elte.hu>
To: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ftrace: perform an initialization for ftrace to enable it
Date: Tue, 28 Oct 2008 19:16:14 +0100 [thread overview]
Message-ID: <20081028181614.GB11275@elte.hu> (raw)
In-Reply-To: <49076552.2090500@gmail.com>
* Frederic Weisbecker <fweisbec@gmail.com> wrote:
> Impact: Corrects a bug which made the function tracer not functionnal
>
> With latest git, the function tracer didn't get any trace. The
> problem was the fact that ftrace_enabled wasn't initialized to 1
> because ftrace hasn't any init function when DYNAMIC_FTRACE is
> disabled. So when a tracer tries to register an ftrace_ops struct,
> __register_ftrace_function failed to set the hook.
>
> This patch corrects it by setting an init function to initialize
> ftrace during the boot.
>
> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
applied to tip/tracing/urgent, thanks Frederic!
Ingo
prev parent reply other threads:[~2008-10-28 18:16 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-28 19:17 [PATCH] ftrace: perform an initialization for ftrace to enable it Frederic Weisbecker
2008-10-28 18:16 ` Ingo Molnar [this message]
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