As of device hot unplug, we need some preparatory measures, so that when
we encounter memory fault (like SIGBUS error) due to the unplug action,
we can recover instead of crash.
To handle device hot unplug is bus-specific behavior, this patch introduces
a bus ops so that each kind of bus can imple
As of device hot unplug, we need some preparatory measures, so that when
we encounter memory fault (like SIGBUS error) due to the unplug action,
we can recover instead of crash.
To handle device hot unplug is bus-specific behavior, this patch introduces
a bus ops so that each kind of bus can imple
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