[Yaffs] BG GC with FreeRtos

Hello,

i'm new on Yaffs and now I ahve implemented Yaffs2 on an embedded System with FreeRTOS as OS.
It looks like that Yaffs work's good. In some documentations I have read that it would be good to have a BG GC which should run every 2-5 seconds.
Is there someone which could show me an example code how such a BG GC Taks in FreeRTOS could kook like?

Regards
Markus