tag	line	file	source code
FD_ZERO	617	fs/exec.c	FD_ZERO(&current->close_on_exec);
FD_ZERO	110	fs/select.c	FD_ZERO(res_in);
FD_ZERO	111	fs/select.c	FD_ZERO(res_out);
FD_ZERO	112	fs/select.c	FD_ZERO(res_ex);
FD_ZERO	155	fs/select.c	FD_ZERO(fdset);