[Bug 94350] [BAT BSW] lockdep splat due to stop_machine() in ggtt pte programming

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94350

--- Comment #4 from Chris Wilson <chris at chris-wilson.co.uk> ---
Once puzzle I have here is how did rtcwake's mmap_sem become tainted by
struct_mutex?

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