tag	line	file	source code
FD_ISSET	436	fs/exec.c	if (FD_ISSET(i,&current->files->close_on_exec))
FD_ISSET	66	fs/fcntl.c	return FD_ISSET(fd, &current->files->close_on_exec);
FD_ISSET	126	fs/select.c	if (FD_ISSET(i,in) && check(SEL_IN,wait,current->files->fd[i])) {
FD_ISSET	131	fs/select.c	if (FD_ISSET(i,out) && check(SEL_OUT,wait,current->files->fd[i])) {
FD_ISSET	136	fs/select.c	if (FD_ISSET(i,ex) && check(SEL_EX,wait,current->files->fd[i])) {