Re: [PATCH] tracing/ftrace: add missing wake-up on some callsites

From: Ingo Molnar
Date: Sun Feb 22 2009 - 17:17:10 EST



* Frederic Weisbecker <fweisbec@xxxxxxxxx> wrote:

> Impact: fix unwaken pipe
>
> Now that we use a common wakeup infrastructure, we must append a wakeup
> on few callsites which lack it or tasks reading trace_pipe will not be
> awaken when events come on few tracers.
>
> Cc: Steven Rostedt <rostedt@xxxxxxxxxxx>
> Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
> Signed-off-by: Frederic Weisbecker <fweisbec@xxxxxxxxx>
> ---
> kernel/trace/trace.c | 2 ++
> kernel/trace/trace_branch.c | 2 ++
> kernel/trace/trace_hw_branches.c | 2 ++
> 3 files changed, 6 insertions(+), 0 deletions(-)

Applied to tip:tracing/ftrace, thanks Frederic!

Ingo
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