[Devel] Re: [PATCH 1/5] ftrace: add function tracing to single thread

[Steven Rostedt]

On Wed, 26 Nov 2008, Ingo Molnar wrote:

> 
> * Eric W. Biederman <ebiederm at xmission.com> wrote:
> 
> > > +/* ftrace_pid_trace >= 0 will only trace threads with this pid */
> > > +static int ftrace_pid_trace = -1;
> > 
> > Why not?
> > static struct pid *ftrace_pid_trace = NULL;
> 
> ok, looks reasonably simple at first sight.
> 
> Steve, mind sending the conversion of this facility to struct pid as a 
> delta patch? (that would have education purposes as well, for similar 
> situations)

If I can trace specific kernel threads too, then I have no problem with 
it.

-- Steve

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