On Fri, 08 Mar 2024 13:38:20 -0500
Steven Rostedt wrote:
> +static DEFINE_MUTEX(wait_mutex);
> +
> +static bool wait_woken_prepare(struct trace_iterator *iter, int *wait_index)
> +{
> + bool woken = false;
> +
> + mutex_lock(_mutex);
> + if (iter->waking)
> + woken =
From: "Steven Rostedt (Google)"
When the tracing_pipe_raw file is closed, if there are readers still
blocked on it, they need to be woken up. Currently a wait_index is used.
When the readers need to be woken, the index is updated and they are all
woken up.
But there is a race where a new reader
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