JFFS2 garbage collector blocking for minutes after mount

Martin Egholm Nielsen martin at egholm-nielsen.dk
Tue Jul 26 09:08:35 EDT 2005

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

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