From: "Matthias Urlichs" <smurf@noris.de>
To: Hans Reiser <reiser@namesys.com>
Cc: Nikita Danilov <Nikita@Namesys.COM>,
Oleg Drokin <green@namesys.com>,
reiserfs-list@namesys.com
Subject: Re: fsck mode halfway between --fix-fixable and --rebuild-tree ?
Date: Wed, 2 Oct 2002 10:13:43 +0200 [thread overview]
Message-ID: <20021002101343.M20612@noris.de> (raw)
In-Reply-To: <3D99ECDE.7050904@namesys.com>; from reiser@namesys.com on Tue, Oct 01, 2002 at 10:43:42PM +0400
Hi,
One other idea I've had yesterday to speed up --rebuild-tree on a big
full disk...
Reiserfsck starts with a bitmap of blocks which might hold B-tree nodes.
The idea is to walk through the existing tree and clear those bits in the
bitmap which actually belong to some file -- those cannot hold metadata.
For extra safety, only consider fiels which haven't been modified for
<insert_date_here>. Abort if you find a tree block which points to
a block whose bit is not set -- either because it never was set in the
first place (then you probably should use -S), or because it points into
a file (then you should set the date back, or use the original mode).
Thoughts? Price? ;-)
--
Matthias Urlichs | noris network AG | http://smurf.noris.de/
next prev parent reply other threads:[~2002-10-02 8:13 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-09-28 9:28 Reiserfs/emacs incompatibility/bug ? arthur.chereau
2002-09-29 15:23 ` fsck mode halfway between --fix-fixable and --rebuild-tree ? Matthias Urlichs
2002-09-30 6:18 ` Oleg Drokin
2002-09-30 11:12 ` Hans Reiser
2002-09-30 11:15 ` Oleg Drokin
2002-09-30 11:17 ` Matthias Urlichs
2002-09-30 11:22 ` Oleg Drokin
2002-09-30 13:08 ` Matthias Urlichs
2002-09-30 13:20 ` Hans Reiser
2002-09-30 17:36 ` Matthias Urlichs
2002-09-30 17:56 ` Valdis.Kletnieks
2002-10-01 6:37 ` Nikita Danilov
2002-10-01 7:32 ` Matthias Urlichs
2002-10-01 7:44 ` Nikita Danilov
2002-10-01 11:02 ` Hans Reiser
2002-10-01 11:00 ` Hans Reiser
2002-10-01 11:12 ` Nikita Danilov
2002-10-01 12:15 ` Matthias Urlichs
2002-10-01 18:43 ` Hans Reiser
2002-10-02 8:13 ` Matthias Urlichs [this message]
2002-10-02 11:04 ` Vitaly Fertman
2002-10-02 12:21 ` Matthias Urlichs
2002-09-30 15:15 ` Vitaly Fertman
2002-09-30 11:43 ` Vitaly Fertman
2002-09-29 23:54 ` Reiserfs/emacs incompatibility/bug ? Matthias Andree
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