On Fri, 24 May 2024 21:32:08 -0400
Steven Rostedt wrote:
> On Tue, 7 May 2024 23:09:22 +0900
> "Masami Hiramatsu (Google)" wrote:
>
> > @@ -109,6 +244,21 @@ ftrace_push_return_trace(unsigned long ret, unsigned
> > long func,
> > if (!current->ret_stack)
> > return -EBUSY;
> >
On Tue, 7 May 2024 23:09:22 +0900
"Masami Hiramatsu (Google)" wrote:
> @@ -109,6 +244,21 @@ ftrace_push_return_trace(unsigned long ret, unsigned
> long func,
> if (!current->ret_stack)
> return -EBUSY;
>
> + /*
> + * At first, check whether the previous fgraph cal
From: Steven Rostedt (VMware)
Allow for multiple users to attach to function graph tracer at the same
time. Only 16 simultaneous users can attach to the tracer. This is because
there's an array that stores the pointers to the attached fgraph_ops. When
a function being traced is entered, each of t
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