diff options
| author |  Peter Hurley <peter@hurleysoftware.com>
| 2013-06-15 09:14:29 -0400 |
|---|---|---|
| committer |  Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2013-07-23 16:43:02 -0700 |
| commit | f95499c3030fe1bfad57745f2db1959c5b43dca8 (patch) | |
| tree | 0cb875c59a1fe4f13107660bc576c6e801335a5e | |
| parent | n_tty: Fix type mismatches in receive_buf raw copy (diff) | |
| download | linux-f95499c3030f.tar.gz linux-f95499c3030f.tar.bz2 linux-f95499c3030f.zip | |
n_tty: Don't wait for buffer work in read() loop
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/tty/n_tty.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index fe1c39992c51..a6eea30d0911 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; |