background garbage collector in UBIFS

[Jagadish]

Hello,

Referring to the following link:
http://www.linux-mtd.infradead.org/faq/ubifs.html#L_bgt_thread

I came to know that background garbage collection is not implemented in 
UBIFS.
Is there any alternate way so as to achieve garbage collection in the 
background?

Thanks and Regards,
Jagadish