[ECOS] jffs2 garbage collect
Wed Sep 20 15:25:00 GMT 2006
On Wed, Sep 20, 2006 at 05:07:58PM +0200, J?rgen Lambrecht wrote:
> Thanks for your fast reply Andrew.
> The problem I have is that the user will first delete files from flash to
> make place, and then tftp files to flash. But the place only really
> becomes available after a garbage collect (or after reboot).
The garbage collection code is also run when the filesystem is 'full',
ie it cannot allocate space for new data. I will run the garbage
collection code and then try the allocation again. This is why all the
comments say that the garbage collection they is only nice to have,
> To delete files, we use a "magic" deletion file. At the end of processing
> that file, I want to add garbage collection.
> - I could do this by starting the GC thread, and then stopping it again.
> - Or maybe better, by calling myself jffs2_garbage_collect_pass(c).
> - Or I guess I could also unmount jffs2 and mount it again.
Only the last option is safe. The others potentially could cause
What is wrong with having garbage in your filesystem anyway?
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