From: Martin Egholm Nielsen <martin@egholm-nielsen.dk>
To: linux-mtd@lists.infradead.org
Subject: Re: JFFS2 garbage collector blocking for minutes after mount
Date: Tue, 26 Jul 2005 15:08:35 +0200 [thread overview]
Message-ID: <dc5ckj$ldm$1@sea.gmane.org> (raw)
In-Reply-To: <42E634D0.6090300@inf.u-szeged.hu>
Ferenc Havasi wrote:
>>The garbage collection thread is also responsible for building up the
>>node tree for every inode after mounting, so that we know for sure which
>>nodes are valid and which are obsolete. On NAND flash we can't actually
>>mark nodes as obsolete.
> Martin, you may should try our Centralizes Summary (CS) patch. It stores
> every relevant memory representation at umount time, so at mount (if the
> previous unmount was a clean one) you need only to read it without any
> scanning and rebuilding.
Unfortunately, I have no (or almost no) clean umount's - the device will
reboot due to power-failure...
But I'm still considering - just for the clean ones :-)
// Martin
next prev parent reply other threads:[~2005-07-26 13:09 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-20 9:03 JFFS2 garbage collector blocking for minutes after mount Martin Egholm Nielsen
2005-07-20 13:45 ` David Woodhouse
2005-07-20 14:12 ` Martin Egholm Nielsen
2005-07-20 14:19 ` David Woodhouse
2005-07-20 14:34 ` Martin Egholm Nielsen
2005-07-20 19:17 ` David Woodhouse
2005-07-21 9:23 ` Stephane Fillod
2005-07-22 14:47 ` Martin Egholm Nielsen
2005-07-23 15:07 ` David Woodhouse
2005-07-24 20:09 ` Martin Egholm Nielsen
2005-07-25 9:49 ` Artem B. Bityuckiy
2005-07-25 9:58 ` Martin Egholm Nielsen
2005-07-27 7:10 ` Martin Egholm Nielsen
2005-07-26 13:04 ` Ferenc Havasi
2005-07-26 13:06 ` Artem B. Bityuckiy
2005-07-26 13:16 ` Ferenc Havasi
2005-07-26 13:08 ` Martin Egholm Nielsen [this message]
2005-07-26 13:14 ` Steven Scholz
2005-07-26 14:05 ` Ferenc Havasi
2005-07-26 14:06 ` Steven Scholz
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