kcmp = EP_CMP_FFD(&epi->ffd, &epic->ffd); 
kcmp = ep_cmp_ffd(&epi->ffd, &epic->ffd); 
static void ep_rbtree_insert(struct eventpoll *ep, struct epitem *epi){	int kcmp;	struct rb_node **p = &ep->rbr.rb_node, *parent = NULL;	struct epitem *epic;	while (*p) {		parent = *p;		epic = rb_entry(parent, struct epitem, rbn);		kcmp = EP_CMP_FFD(&epi->ffd, &epic->ffd);		if (kcmp > 0)			p = &parent->rb_right;		else			p = &parent->rb_left;	}	rb_link_node(&epi->rbn, parent, p);	rb_insert_color(&epi->rbn, &ep->rbr);}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/b030a4dd609e167da7f73c2d1fa5af864a0aea17/eventpoll.c/clean/fs/eventpoll.c