| From | Peter Hurley <> | Subject | [PATCH v3 17/24] n_tty: Don't wait for buffer work in read() loop | Date | Mon, 15 Apr 2013 11:19:21 -0400 |
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User-space read() can run concurrently with receiving from device; waiting for receive_buf() to complete is not required.
Signed-off-by: Peter Hurley <peter@hurleysoftware.com> --- 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 c81c270..2ce01aa 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -1722,7 +1722,6 @@ 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
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