84 static void	filt_eventfddetach(struct knote *kn);
85 static int	filt_eventfdread(struct knote *kn, long hint);
86 static int	filt_eventfdwrite(struct knote *kn, long hint);
253 eventfd_kqfilter(struct file *fp, struct knote *kn)  in eventfd_kqfilter()  argument
258 	switch (kn->kn_filter) {  in eventfd_kqfilter()
260 		kn->kn_fop = &eventfd_rfiltops;  in eventfd_kqfilter()
263 		kn->kn_fop = &eventfd_wfiltops;  in eventfd_kqfilter()
270 	kn->kn_hook = efd;  in eventfd_kqfilter()
271 	knlist_add(&efd->efd_sel.si_note, kn, 1);  in eventfd_kqfilter()
278 filt_eventfddetach(struct knote *kn)  in filt_eventfddetach()  argument
280 	struct eventfd *efd = kn->kn_hook;  in filt_eventfddetach()
283 	knlist_remove(&efd->efd_sel.si_note, kn, 1);  in filt_eventfddetach()
288 filt_eventfdread(struct knote *kn, long hint)  in filt_eventfdread()  argument
290 	struct eventfd *efd = kn->kn_hook;  in filt_eventfdread()
294 	kn->kn_data = (int64_t)efd->efd_count;  in filt_eventfdread()
301 filt_eventfdwrite(struct knote *kn, long hint)  in filt_eventfdwrite()  argument
303 	struct eventfd *efd = kn->kn_hook;  in filt_eventfdwrite()
307 	kn->kn_data = (int64_t)(UINT64_MAX - 1 - efd->efd_count);  in filt_eventfdwrite()