arch_prepare_kretprobe(ri, regs);
/* XXX(hch): why is there no hlist_move_head? */
arch_prepare_kretprobe(ri, regs);
/* XXX(hch): why is there no hlist_move_head? */
INIT_HLIST_HEAD(&rp->used_instances);
INIT_HLIST_HEAD(&rp->free_instances);
for (i = 0; i < rp->maxactive; i++) {
INIT_HLIST_HEAD(&rp->used_instances);
INIT_HLIST_HEAD(&rp->free_instances);
for (i = 0; i < rp->maxactive; i++) {