free_insn_slot(p->ainsn.insn); down(&kprobe_mutex); 
void __kprobes arch_remove_kprobe(struct kprobe *p){	up(&kprobe_mutex);	free_insn_slot(p->ainsn.insn);	down(&kprobe_mutex);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/2dd960d66bc12b6b206e63104636514e5da0ddb7/kprobes.c/clean/arch/x86_64/kernel/kprobes.c