From: Keith Busch <keith.busch@intel.com>
To: Timur Tabi <timur@kernel.org>
Cc: lkml <linux-kernel@vger.kernel.org>
Subject: Re: Enable tracing only for one function and its children?
Date: Fri, 16 Nov 2018 15:49:26 -0700 [thread overview]
Message-ID: <20181116224925.GE14630@localhost.localdomain> (raw)
In-Reply-To: <CAOZdJXXYPeb90DzGnHr+c7jhfbZA7z7wiYMzDxgMP4nmuoYaiQ@mail.gmail.com>
On Fri, Nov 16, 2018 at 04:37:55PM -0600, Timur Tabi wrote:
> Is there a way to enable ftrace tracing only for one specific function
> and all the functions it calls? Then when the function returns,
> disable tracing until the next time?
>
> When I pass the function name only to set_ftrace_filter, it literally
> only traces that function, which doesn't help me.
I think you're looking for the set_graph_function option for the
function_graph tracer.
prev parent reply other threads:[~2018-11-16 22:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-16 22:37 Enable tracing only for one function and its children? Timur Tabi
2018-11-16 22:49 ` Keith Busch [this message]
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