[PATCH 48/75] tty: PTYs set TTY_DO_WRITE_WAKEUP when they don't need to
From: Alan Cox <hidden>
Date: 2009-01-02 13:47:06
Subsystem:
char and misc drivers, the rest · Maintainers:
Arnd Bergmann, Greg Kroah-Hartman, Linus Torvalds
From: Alan Cox <redacted> The write wakeup is done anyway for the poll while DO_WRITE_WAKUP is cleared, set and managed by the ldisc layer and is no business of the pty code. Signed-off-by: Alan Cox <redacted> --- drivers/char/pty.c | 3 --- 1 files changed, 0 insertions(+), 3 deletions(-)
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index b5daaaa..112a6ba 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c@@ -5,8 +5,6 @@ * * Added support for a Unix98-style ptmx device. * -- C. Scott Ananian <cananian@alumni.princeton.edu>, 14-Jan-1998 - * Added TTY_DO_WRITE_WAKEUP to enable n_tty to send POLL_OUT to - * waiting writers -- Sapan Bhatia <sapan@corewars.org> * * When reading this code see also fs/devpts. In particular note that the * driver_data field is used by the devpts side as a binding to the devpts
@@ -217,7 +215,6 @@ static int pty_open(struct tty_struct *tty, struct file *filp) clear_bit(TTY_OTHER_CLOSED, &tty->link->flags); set_bit(TTY_THROTTLED, &tty->flags); - set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags); retval = 0; out: return retval;