struct inode *whatever;
*whatever = iget(a->b,MSDOS_ROOT_INO);
and change a->b->s_mounted->d to whatever->d
I haven't tested this correctly ( the last line in the example might not
need the asterix) but if this *does* work email me at tmeyer@new.co.za
or cloud.new.co.za!adolf. If not flame me good!