From: Pavel Machek <pavel@ucw.cz>
To: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pm@lists.linux-foundation.org, Jiri Slaby <jslaby@suse.cz>
Subject: Re: [patch 1/1] [PATCH] include storage keys in hibernation image.
Date: Sun, 3 Jul 2011 19:46:16 +0200 [thread overview]
Message-ID: <20110703174616.GB26790__24345.3215611682$1309715314$gmane$org@elf.ucw.cz> (raw)
In-Reply-To: <20110615093629.07f01779@mschwide>
Hi!
> > I think, however, that we really should try to merge them. The only
> > difference seems to be how the additionally allocated pages will be populated
> > and what's going to happen to their contents during restore.
> >
> > ACPI will simply copy the NVS memory to those pages, while S390 will save
> > the relevant storage key bits in there.
>
> One complication to keep in mind is that we need to know which storage key
> goes to which page frame. We need something like the orig_bm/copy_bm or
> we'd have to store the pfn with the key. Simply storing the key for every
> page will make the array unnecessarily big.
How big is the overhead? In percent / in megabytes?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2011-07-03 17:46 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-08 7:45 [patch 0/1] [RFC] include storage keys in hibernation image Martin Schwidefsky
2011-06-08 7:45 ` [patch 1/1] [PATCH] " Martin Schwidefsky
2011-06-12 12:41 ` Rafael J. Wysocki
2011-06-12 12:41 ` Rafael J. Wysocki
2011-06-14 8:50 ` Martin Schwidefsky
2011-06-14 20:50 ` Rafael J. Wysocki
2011-06-15 7:36 ` Martin Schwidefsky
2011-06-15 7:36 ` Martin Schwidefsky
2011-06-15 23:21 ` Rafael J. Wysocki
2011-06-15 23:21 ` Rafael J. Wysocki
2011-07-03 17:46 ` Pavel Machek [this message]
2011-07-03 17:46 ` Pavel Machek
2011-07-04 8:09 ` Martin Schwidefsky
2011-07-04 8:09 ` Martin Schwidefsky
2011-07-07 21:36 ` Rafael J. Wysocki
2011-07-07 21:36 ` Rafael J. Wysocki
2011-07-08 8:29 ` Martin Schwidefsky
2011-07-08 8:29 ` Martin Schwidefsky
2011-06-14 20:50 ` Rafael J. Wysocki
2011-06-14 8:50 ` Martin Schwidefsky
2011-07-28 22:01 ` Rafael J. Wysocki
2011-07-28 22:01 ` Rafael J. Wysocki
2011-08-09 15:45 ` Martin Schwidefsky
2011-08-09 19:56 ` Rafael J. Wysocki
2011-08-09 19:56 ` Rafael J. Wysocki
2011-08-09 15:45 ` Martin Schwidefsky
2011-06-08 7:45 ` Martin Schwidefsky
2011-08-16 14:14 [patch 0/1] [patch 0/1] " Martin Schwidefsky
2011-08-16 14:14 ` [patch 1/1] [PATCH] " Martin Schwidefsky
2011-08-16 14:14 ` Martin Schwidefsky
2011-08-16 17:56 ` Rafael J. Wysocki
2011-08-16 17:56 ` Rafael J. Wysocki
2011-08-17 7:43 ` Martin Schwidefsky
2011-08-17 7:43 ` Martin Schwidefsky
2011-08-17 9:15 ` Rafael J. Wysocki
2011-08-17 9:15 ` Rafael J. Wysocki
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