linux-master/fs/select.c

298 static int poll_select_finish(struct timespec64 *end_time,
313 	if (!end_time->tv_sec && !end_time->tv_nsec)
317 	rts = timespec64_sub(*end_time, rts);
479 static noinline_for_stack int do_select(int n, fd_set_bits *fds, struct timespec64 *end_time)
499 	if (end_time && !end_time->tv_sec && !end_time->tv_nsec) {
504 	if (end_time && !timed_out)
505 		slack = select_estimate_accuracy(end_time);
602 		if (end_time && !to) {
603 			expire = timespec64_to_ktime(*end_time);
626 			   fd_set __user *exp, struct timespec64 *end_time)
681 	ret = do_select(n, &fds, end_time);
707 	struct timespec64 end_time, *to = NULL;
715 		to = &end_time;
723 	return poll_select_finish(&end_time, tvp, PT_TIMEVAL, ret);
737 	struct timespec64 ts, end_time, *to = NULL;
754 		to = &end_time;
764 	return poll_select_finish(&end_time, tsp, type, ret);
886 		   struct timespec64 *end_time)
896 	if (end_time && !end_time->tv_sec && !end_time->tv_nsec) {
901 	if (end_time && !timed_out)
902 		slack = select_estimate_accuracy(end_time);
960 		if (end_time && !to) {
961 			expire = timespec64_to_ktime(*end_time);
975 		struct timespec64 *end_time)
1016 	fdcount = do_poll(head, &table, end_time);
1052 	struct timespec64 *to = NULL, end_time;
1056 		end_time.tv_sec = restart_block->poll.tv_sec;
1057 		end_time.tv_nsec = restart_block->poll.tv_nsec;
1058 		to = &end_time;
1072 	struct timespec64 end_time, *to = NULL;
1076 		to = &end_time;
1091 			restart_block->poll.tv_sec = end_time.tv_sec;
1092 			restart_block->poll.tv_nsec = end_time.tv_nsec;
1106 	struct timespec64 ts, end_time, *to = NULL;
1113 		to = &end_time;
1123 	return poll_select_finish(&end_time, tsp, PT_TIMESPEC, ret);
1132 	struct timespec64 ts, end_time, *to = NULL;
1139 		to = &end_time;
1149 	return poll_select_finish(&end_time, tsp, PT_OLD_TIMESPEC, ret);
1197 	struct timespec64 *end_time)
1244 	ret = do_select(n, &fds, end_time);
1270 	struct timespec64 end_time, *to = NULL;
1278 		to = &end_time;
1286 	return poll_select_finish(&end_time, tvp, PT_OLD_TIMEVAL, ret);
1319 	struct timespec64 ts, end_time, *to = NULL;
1336 		to = &end_time;
1346 	return poll_select_finish(&end_time, tsp, type, ret);
1404 	struct timespec64 ts, end_time, *to = NULL;
1411 		to = &end_time;
1421 	return poll_select_finish(&end_time, tsp, PT_OLD_TIMESPEC, ret);
1430 	struct timespec64 ts, end_time, *to = NULL;
1437 		to = &end_time;
1447 	return poll_select_finish(&end_time, tsp, PT_TIMESPEC, ret);