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SubjectRe: [PATCH] tracing/function-return-tracer: Add a barrier to ensure return stack index is incremented in memory

* Frederic Weisbecker <fweisbec@gmail.com> wrote:

> Impact: Fix possible race condition in ftrace function return tracer
>
> This fixes a possible race condition if index incrementation
> is not immediately flushed in memory.
>
> Thanks for Andi Kleen and Steven Rostedt for pointing out this issue
> and give me this solution.
>
> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Steven Rostedt <rostedt@goodmis.org>

applied, thanks Frederic!

Ingo


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