taglinefilesource code
is_console733drivers/char/tty_io.cint i, is_console;
is_console736drivers/char/tty_io.cis_console = (inode->i_rdev == CONSOLE_DEV);
is_console738drivers/char/tty_io.cif (is_console && redirect)
is_console747drivers/char/tty_io.cif (!is_console && L_TOSTOP(tty) && (tty->pgrp > 0) &&