c35f638fc2
'puts_queue' currently loops over characters and employs the full tty buffer machinery for every character. Do the buffer allocation only once and copy all the character at once. This is achieved using tty_insert_flip_string instead of loop+tty_insert_flip_char. Signed-off-by: Jiri Slaby <jslaby@suse.cz> Link: https://lore.kernel.org/r/20201029113222.32640-17-jslaby@suse.cz Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>