[PATCH v4 17/24] n_tty: Don't wait for buffer work in read() loop
From: Peter Hurley <hidden>
Date: 2013-06-15 13:22:30
Also in:
lkml
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
User-space read() can run concurrently with receiving from device; waiting for receive_buf() to complete is not required. Signed-off-by: Peter Hurley <redacted> --- drivers/tty/n_tty.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index fe1c399..a6eea30 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c@@ -1724,7 +1724,6 @@ static inline int input_available_p(struct tty_struct *tty, int amt) { struct n_tty_data *ldata = tty->disc_data; - tty_flush_to_ldisc(tty); if (ldata->icanon && !L_EXTPROC(tty)) { if (ldata->canon_head != ldata->read_tail) return 1;
--
1.8.1.2