From: Thomas Glanzmann <thomas@glanzmann.de>
To: Edward Shishkin <edward.shishkin@gmail.com>
Cc: Tomasz Chmielewski <mangoo@wpkg.org>,
Chris Mason <chris.mason@oracle.com>,
linux-btrfs@vger.kernel.org
Subject: Re: Data Deduplication with the help of an online filesystem check
Date: Tue, 28 Apr 2009 19:34:01 +0200 [thread overview]
Message-ID: <20090428173401.GC7217@cip.informatik.uni-erlangen.de> (raw)
In-Reply-To: <49F73CEF.4030105@gmail.com>
Hello,
> I wouldn't rely on crc32: it is not a strong hash,
> Such deduplication can lead to various problems,
> including security ones.
sure thing, did you think of replacing crc32 with sha1 or md5, is this
even possible (is there enough space reserved so that the change can be
done without changing the filesystem layout) at the moment with btrfs?
Thomas
next prev parent reply other threads:[~2009-04-28 17:34 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-27 3:33 Data Deduplication with the help of an online filesystem check Thomas Glanzmann
2009-04-27 13:37 ` Chris Mason
2009-04-28 5:22 ` Thomas Glanzmann
2009-04-28 10:02 ` Chris Mason
2009-04-28 13:49 ` Andrey Kuzmin
2009-04-28 13:58 ` Chris Mason
2009-04-28 14:04 ` Thomas Glanzmann
2009-04-28 17:21 ` Chris Mason
2009-04-28 20:10 ` Thomas Glanzmann
2009-04-28 20:29 ` Thomas Glanzmann
2009-04-28 13:58 ` jim owens
2009-04-28 16:10 ` Anthony Roberts
2009-04-28 15:59 ` Thomas Glanzmann
2009-04-28 16:04 ` Tomasz Chmielewski
2009-04-28 17:29 ` Edward Shishkin
2009-04-28 17:34 ` Thomas Glanzmann [this message]
2009-04-28 17:38 ` Chris Mason
2009-04-28 17:43 ` Thomas Glanzmann
2009-04-28 17:45 ` Heinz-Josef Claes
2009-04-28 20:16 ` Thomas Glanzmann
2009-04-28 20:36 ` Heinz-Josef Claes
2009-04-28 20:52 ` Thomas Glanzmann
2009-04-28 20:58 ` Chris Mason
2009-04-28 21:12 ` Thomas Glanzmann
2009-04-28 21:26 ` Chris Mason
2009-04-28 22:14 ` Thomas Glanzmann
2009-04-28 23:18 ` Chris Mason
2009-04-29 12:03 ` Thomas Glanzmann
2009-04-29 13:11 ` Michael Tharp
2009-04-29 13:14 ` Chris Mason
2009-04-29 13:58 ` Thomas Glanzmann
2009-04-29 14:31 ` Chris Mason
2009-04-29 15:26 ` Thomas Glanzmann
2009-04-29 15:45 ` Chris Mason
2009-06-04 8:49 ` Thomas Glanzmann
2009-06-04 11:43 ` Chris Mason
2009-06-04 12:03 ` Thomas Glanzmann
2009-06-04 12:43 ` Chris Mason
2009-06-05 12:20 ` Tomasz Chmielewski
2009-06-05 12:50 ` Chris Mason
2009-06-05 15:35 ` Tomasz Chmielewski
2009-04-29 0:06 ` Bron Gondwana
2009-05-06 15:16 ` Sander
2009-04-28 17:32 ` Thomas Glanzmann
2009-04-28 17:41 ` Michael Tharp
2009-04-28 20:14 ` Thomas Glanzmann
2009-05-04 14:29 ` Ric Wheeler
2009-05-04 14:39 ` Tomasz Chmielewski
2009-05-04 14:45 ` Ric Wheeler
2009-05-04 15:15 ` Thomas Glanzmann
2009-05-04 16:03 ` Ric Wheeler
2009-05-04 16:16 ` Andrey Kuzmin
2009-05-04 16:24 ` Thomas Glanzmann
2009-05-04 18:06 ` Jan-Frode Myklebust
2009-05-04 19:16 ` Andrey Kuzmin
2009-05-05 8:02 ` Thomas Glanzmann
2009-05-04 16:26 ` Thomas Glanzmann
2009-05-04 19:11 ` Heinz-Josef Claes
2009-05-04 21:29 ` Dmitri Nikulin
2009-05-05 7:18 ` Heinz-Josef Claes
2009-05-24 7:27 ` Thomas Glanzmann
2009-04-28 17:23 ` Chris Mason
2009-04-28 17:37 ` Thomas Glanzmann
2009-04-28 17:43 ` Chris Mason
2009-04-28 20:15 ` Thomas Glanzmann
2009-04-28 21:19 ` Dmitri Nikulin
2009-04-28 20:24 ` Thomas Glanzmann
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