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Peter Zijlstra
849691a6cd
Now that all the task runtime clock users are gone, remove the ugly rq->lock usage from perf counters, which solves the nasty deadlock seen when a software task clock counter was read from an NMI overflow context. Signed-off-by: Peter Zijlstra <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Corey Ashford <[email protected]> LKML-Reference: <[email protected]> Signed-off-by: Ingo Molnar <[email protected]>