Re: [PATCH] ftrace: fix ftrace_trace_task return value

On Fri, 24 Jul 2020 20:50:48 -0400 Josef Bacik wrote: > I was attempting to use pid filtering with function_graph, but it wasn't > allowing anything to make it through. Turns out ftrace_trace_task > returns false if ftrace_ignore_pid is not-empty, which isn't correct > anymore. We're now

[PATCH] ftrace: fix ftrace_trace_task return value

I was attempting to use pid filtering with function_graph, but it wasn't allowing anything to make it through. Turns out ftrace_trace_task returns false if ftrace_ignore_pid is not-empty, which isn't correct anymore. We're now setting it to FTRACE_PID_IGNORE if we need to ignore that pid,