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From: Arjan van de Ven <arjan@infradead.org>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Andy Isaacson <adi@hexapodia.org>, Pavel Machek <pavel@ucw.cz>,
	Andreas Steinmetz <ast@domdv.de>,
	rjw@sisk.pl, linux-kernel@vger.kernel.org
Subject: Re: encrypted swap (was Re: [PATCH encrypted swsusp 1/3] core functionality)
Date: Thu, 14 Apr 2005 10:49:51 +0200	[thread overview]
Message-ID: <1113468592.6293.43.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <20050414083801.GA13540@gondor.apana.org.au>


> 
> >  * the key is automatically regenerated every 2 hours (or whatever); as
> >    pages encrypted under the old key age out, it can be freed eventually
> 
> This'll require changes to dmcrypt but it's doable.

but it's not useful since linux actually generally keeps the pages also
in swap even when they're back in memory (so that if there's memory
pressure again they can just be swapped out cheap again), this leads to
very very long lived swap pages



  reply	other threads:[~2005-04-14  8:50 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-10 23:19 [PATCH encrypted swsusp 1/3] core functionality Andreas Steinmetz
2005-04-11 10:25 ` Pavel Machek
2005-04-11 10:36   ` folkert
2005-04-11 11:01     ` Pavel Machek
2005-04-11 11:38       ` folkert
2005-04-11 16:28       ` Andreas Steinmetz
2005-04-11 16:36         ` Pavel Machek
2005-04-11 13:08     ` Andreas Steinmetz
2005-04-11 11:08 ` Pavel Machek
2005-04-11 13:11   ` Andreas Steinmetz
2005-04-11 16:11   ` Andreas Steinmetz
2005-04-11 20:57     ` Rafael J. Wysocki
2005-04-11 21:08       ` Pavel Machek
2005-04-11 21:35         ` Rafael J. Wysocki
2005-04-12 10:07           ` Andreas Steinmetz
2005-04-12 10:52       ` Andreas Steinmetz
2005-04-12 13:17       ` Andreas Steinmetz
2005-04-13 11:59         ` Herbert Xu
2005-04-13 12:59           ` Andreas Steinmetz
2005-04-13 21:27             ` Herbert Xu
2005-04-13 22:29               ` Andreas Steinmetz
2005-04-13 23:10                 ` Herbert Xu
2005-04-13 23:24                   ` Pavel Machek
2005-04-13 23:39                     ` Herbert Xu
2005-04-13 23:46                       ` Pavel Machek
2005-04-14  0:35                         ` Matt Mackall
2005-04-14  6:51                           ` Pavel Machek
2005-04-14  8:08                             ` Herbert Xu
2005-04-14  9:04                               ` Rafael J. Wysocki
2005-04-14 17:11                                 ` Matt Mackall
2005-04-14 19:27                                   ` Stefan Seyfried
2005-04-14 19:53                                     ` Matt Mackall
2005-04-14 20:18                                       ` Pavel Machek
2005-04-14 22:27                                         ` Matt Mackall
2005-04-14 22:11                                       ` Andy Isaacson
2005-04-14 22:48                                         ` Matt Mackall
2005-04-15  9:44                                           ` Andreas Steinmetz
2005-04-15  9:44                                       ` Andreas Steinmetz
2005-04-15 17:00                                         ` Matt Mackall
2005-04-14 20:13                                   ` Pavel Machek
2005-04-14  9:05                               ` Pavel Machek
2005-04-15  9:44                             ` Andreas Steinmetz
2005-04-15  9:47                               ` Pavel Machek
2005-04-14  1:13                       ` Bernd Eckenfels
2005-04-14  8:27                         ` Pavel Machek
2005-04-14  8:31                       ` encrypted swap (was Re: [PATCH encrypted swsusp 1/3] core functionality) Andy Isaacson
2005-04-14  8:38                         ` Herbert Xu
2005-04-14  8:49                           ` Arjan van de Ven [this message]
2005-04-14  1:11                   ` [PATCH encrypted swsusp 1/3] core functionality Bernd Eckenfels
2005-04-13 13:22         ` Pavel Machek
2005-04-13 14:45           ` Andreas Steinmetz
     [not found] <3SZMt-3zo-15@gated-at.bofh.it>
     [not found] ` <3T83r-1Mk-35@gated-at.bofh.it>
2005-04-14 10:57   ` encrypted swap (was Re: [PATCH encrypted swsusp 1/3] core functionality) Bodo Eggert <harvested.in.lkml@posting.7eggert.dyndns.org>

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