Re: [PATCH 1/7] tracing: Introduce trace_create_cpu_file() andtracing_get_cpu()

[Steven Rostedt]

On Mon, 2013-07-22 at 10:55 -0400, Steven Rostedt wrote:

> The problem is that some files only references the tr for a certain CPU.
> Another data structure was created when the file was opened called
> trace_cpu (tc), which maps a CPU and a trace_array. As there is no

Correction, the trace_cpu is created when the file is created, not when
it was opened.

> global list of trace_cpus, this is susceptible to the above race
> condition. Accessing tc->tr can happen after tc has been freed.


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