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Date: Mon, 23 Oct 2006 16:20:55 +0200 From: "Rafael J. Wysocki" <rjw@...k.pl> To: Nick Piggin <nickpiggin@...oo.com.au> Cc: Nigel Cunningham <ncunningham@...uxmail.org>, Andrew Morton <akpm@...l.org>, LKML <linux-kernel@...r.kernel.org>, Pavel Machek <pavel@....cz> Subject: Re: [PATCH] Freeze bdevs when freezing processes. On Monday, 23 October 2006 16:15, Nick Piggin wrote: > 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/* Oops, s/RCU/LRU/g (shame, shame). Sorry for the confusion. -- You never change things by fighting the existing reality. R. Buckminster Fuller - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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