Messages in this thread | | | Date | Tue, 24 Oct 2006 00:15:17 +1000 | From | Nick Piggin <> | Subject | Re: [PATCH] Freeze bdevs when freezing processes. |
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Rafael J. Wysocki wrote:
> This case is a bit special. I don't think it would be right to require every > device driver writer to avoid modifying RCU pages from the interrupt > context, because that would break the suspend to disk ... > > Besides, if there is an RCU page that we _know_ we can use to store the image > in it, we can just include this page in the image without copying. This > already gives us one extra free page for the rest of the image and we can > _avoid_ creating two images which suspend2 does and which adds a _lot_ of > complexity to the code.
If you don't mind me asking... what are these RCU pages you speak of? I couldn't work it out by grepping kernel/power/*
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